Fuji XH2S, my impressions for video

Justin Cider

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I'm going to try and keep this brief but also as highly informative as possible.

I've now used this camera for day to day video recording, a short product advertisement and a full day wedding so I feel like I've put it to the test enough to give it a review of sorts as well as found some bugs that might be helpful for others to know.

Video quality/capability:

Let's start with the most important and most impressive first. Whether it's high bit rate capabilities in h.265 or the even more insane ProRes intake this camera makes complete use of its 6k over sampled 4k footage. Expect to sell an organ to fund memory card investments (which I'll discuss in its own category) as ProRes HQ in the highest quality video recording settings will burn through an eye watering 4.7ish gigs per second of footage. Will I use that often? No, at least not any time soon but for when I want it or need it it's there. 4k 24p, or 25p for those across the pond, is what we've come to expect from Fuji especially in the last few models. ProRes however certainly raises the bar. 4k 60 is noticably improved over the XT4. 4k 120p isn't quite as good but honestly isn't terribly noticable right next to the higher detailed frame rates and I'd never be reluctant to use it based on quality. Worth noting that you cannot get away with using anything less than 720mbps without it falling apart so don't even bother trying and it's got to be all-intra. I would have liked to see even ProRes LT here but it was likely an omission due to heat. Per usual from Fuji and shockingly omitted by lots of hybrid brands out there, 4K DCI is available for frame rates up to 60p but it's absent with 120p likely because of the already cropped sampling. 240p remains a gimmick and still appears to be 720p upscaled to 1080. It's soft, has a ton of artifacting and generally just looks terrible. Fortunately I can't think of any time I would have a need for a frame rate that high. 6.2k open gate has it's uses but I won't be using it a ton outside of things shot intentionally for social media.

Autofocus:

For 60p frame rates and under, it is significantly more confident than ever before from Fuji and in most circumstances it works quite effectively. Face and eye detect AF is sticky and accurate. Some refinement is still needed and although I've given up on kaizen will hopefully come in future firmware updates. One large annoyance I ran into several times in a wedding environment is that the AF box seems to have no impact on face detection. No matter what AFC settings are used the camera does not prioritize the face that is currently in the box on the screen making face detection nearly unusable in medium-wide and wider shots with multiple subjects. With the joystick on the camera you can switch between faces and it will remain somewhat sticky on the face last selected but that is not a substitute for what should be a much more intuitive experience when using a box. When things get to 120p the camera completely goes off the rails. There was better AF accuracy back in the XH1. Face detection and any other form of animal or bird detection is completely unusable in this frame rate. Even when the camera does manage to find a face it will randomly then lose it in even the most simple lighting and background situations. If you're attempting to track a moving subject get ready for a very frustrating experience. To be perfectly honest this is completely unacceptable out of a $2,500 camera and must be addressed via firmware ASAP.

Memory cards:

This is where things get really complicated and I'm still trying to figure out exactly what's going on with this camera. Buyer beware do not attempt to use any version of SanDisk extreme memory cards with this camera or you will experience problems. The CF express cards can't handle 4k 120p, ProRes at any frame rate or 6.2k. The problem is, if you were to look at Fuji's website for card recommendations, The chart they have only one of those things as limited. You will experience frame dropping and glitching in the video files. UHS 1 and UHS 2 SanDisk cards also do not meet what is listed as the tolerances by Fuji for those specific cards as well. Here's where things get even more complicated though and I have recorded hours of footage to test this issue to continue to find consistent results. Specifically with the V30 UHS 1 cards, you should be able to record up to 200 megabits per second according to Fuji. I can tell you with my XT4 I have recorded about 10 terabytes of footage on those cards using 4K60 at 200 megabits per second without any issue. On the XH2S using those exact same settings, h.265 4:2:0, about 1/3 of the video is glitchy and has significant frame drop. But that's not what is complicated. What really scratched my head, and I first found it by mistake, is that if you format those cards with the XT4 and then use them in the XH2S it doesn't seem to have a problem. This seems to also apply for the issues I was having with the UHS2 cards as well. There's something about how the XH2S is formatting cards that is affecting it. This appears to only be with SanDisk cards though. In all of the test footage I shot this weekend with Sony tough memory cards I experienced none of these problems. The CF Express cards took anything I threw at them and the SD cards performed at or above Fuji's rated capability even when formatted in the XH2S. So at this point I've got to think it is something specific with SanDisk and this model of camera. The good news is I can just use all those SanDisk cards on my XT4 which I still use as a second angle and have no problems with.

Overheating:

I'm happy to report there's nothing to report. I shot the majority of the wedding day with an external battery pack plugged into the USB-C port and maybe that was enough to not cause heating issues but it was in the upper 80's and I never once got a warning. I'm glad I didn't bother to order the fan!

IBIS:

It's still not Panasonic, but it's still much better than Sony. They sure did hype it up in the release video but I don't really see much of a difference between the XH2S and the XT4. The one place that I do see the difference might actually be a big deal to some people, and that is in the improvement in stabilization warping at wider angles. With the viltrox 13 mm 1.4 I don't think I saw any significant warping unless I was really careless with the camera. So not exactly the gimbal replacement they were so bold as to proclaim.

Dynamic range/log:

F log 2 appears to be all that it was cracked up to be in my test so far. One of the large reasons I shoot with Fuji cameras and first made the switch is because of the eterna film simulation. Although the log footage is impressive I will continue to use eterna for 90% of the time. When a specific project calls for it flog2 will certainly provide very impressive capability though. Just like in the XT-4 you can preview a rec 709 image on the screen which I will mention for anyone who didn't realize that it did that. That was a very welcomed added feature in the XT4. The LUTs that Fuji provides to convert log to eterna is still a bone of contention with me as it results in an image significantly more contrasty and oversaturated than eterna is. Yes you can turn down how heavily the LUT is applied in any software but it's not just as simple as only using it at 90%. It just does not have the tonality that eterna has straight out of camera. Just like for FLOG 1, I will be forced to convert to 709 and color grade from there but it would have been nice to be able to use log alongside eterna for an even close to matched result.

Controls:

Having seven custom modes on the camera is a game changer. Never has it been so easy to rapidly change between frame rates on a Fuji camera. It was because of that that I would limit myself in switching things because especially with weddings things are too fast-paced to take a second to make the changes. With the XH2S I was constantly switching between my delivery frame rate of 24p, 60p and 120P without having to do anything beyond twisting my variable ND filter.

Editing:

I use final cut pro and have since converting from premier about 3 years ago. I was hoping to be able to provide some feedback on what it was like to edit some of these files on my 3-year-old Intel iMac with an rx580 graphics card but that computer is on the fritz. Everything that I've shot so far on the XH2S I've been reviewing and editing on my current model MacBook pro with the M1 pro chip. Although there is a certain smoothness to how ProRes looks on final cut run on a Mac without even waiting half a second for it to render, it's not like anything else is bogging down the machine either. H.265 4:2:2 720mbps all intra 4k 120fps was what I was concerned about and it barely got the fan purring. Now I certainly wouldn't expect the same performance out of my older iMac but I also don't think it would have brought it to its knees either. To be perfectly honest, if you're going to buy a $2,500 camera, then spend another 500 bucks on memory cards per hour of footage at that kind of quality and bit rate than I'd imagine you probably also already have a fairly capable computer. My MacBook pro I got on sale from Best buy for $1,700. No that's not pocket change but it's also far from crazy money in the computer world, especially one that can handle the video specs that it can. I don't want to get too far in the weeds on this subject but somebody in a post last week asked about what it was like to edit some of these files. If you are using an older machine and especially one that isn't a Mac you're going to want to use H.265 and limit yourself to 4:2:0. It seems like lots of things have an issue with 4:2:2 including stock video players.

Overall impressions:

This is certainly the best that Fuji has done so far, and with a little more development on the firmware side it could be the ultimate prosumer hybrid camera. There is nothing else on the market that checks as many boxes, even if some things still come with a check minus, at this price point.

I'm happy to answer any additional questions I might have missed in this review.
 
This is a lot more upbeat than your previous post and I'm glad to hear that. I hope you have been able to read the video you had issues with.

Regarding SanDisk cards, have there CFE Extreme Pro cards worked for stills?

Morris
 
This is a lot more upbeat than your previous post and I'm glad to hear that. I hope you have been able to read the video you had issues with.

Regarding SanDisk cards, have there CFE Extreme Pro cards worked for stills?

Morris
Yes Morris I'm in a much better head space. I cut out all of the bad footage and I'm confident that I'll have enough to use to put together a product that the couple will be happy with. Thank goodness for the XT4 setup on a tripod as a second camera for all the important stuff! Once I got all the footage sorted out I stopped having a panic attack and started experimenting on what the problems might have been and why.

Regarding stills I haven't had a single issue, even with the SanDisk cards. Probably worth noting that I also haven't shot above 15 fps because I can't stand culling that many images. I just sent back my CF Express SanDisk card to B&H this morning so unfortunately I can't run a test for you.
 
Great info. What is your opinion compared to the A7 SIII?
That's a little tough to just give you a cut and dry answer. The A7Siii is an amazing camera for video and does most things a little better than the XH2S. Now the big question is, does it do those things a thousand dollars better than the XH2s? No way. At least not for me who has to have two cameras. The other thing is that I also use my cameras for stills and 12mp just doesn't cut the mustard for me. So even though it's a video review I'm heavily weighting it as a true hybrid camera which I'd almost have a hard time considering the A7Siii.
 
Thank you for your detailed, clear and very positive review. It is good to see that you have persevered and I for one am relieved......my X-H2s arrives tomorrow!

I am very much looking forward to it and will take careful note of your experiences and recommendations. Thank you.
 
I just finished watching Camera Conspiracies' latest video regarding animal tracking in slowmo and looks like your observation lines up with what Kasey found. At 120p and 240p, animal tracking is nearly unusable. From his video the XH2S struggled mightily to keep tracking on birds on the ground. It's quite baffling to see.
 
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This is a lot more upbeat than your previous post and I'm glad to hear that. I hope you have been able to read the video you had issues with.

Regarding SanDisk cards, have there CFE Extreme Pro cards worked for stills?

Morris
Yes Morris I'm in a much better head space. I cut out all of the bad footage and I'm confident that I'll have enough to use to put together a product that the couple will be happy with. Thank goodness for the XT4 setup on a tripod as a second camera for all the important stuff! Once I got all the footage sorted out I stopped having a panic attack and started experimenting on what the problems might have been and why.

Regarding stills I haven't had a single issue, even with the SanDisk cards. Probably worth noting that I also haven't shot above 15 fps because I can't stand culling that many images. I just sent back my CF Express SanDisk card to B&H this morning so unfortunately I can't run a test for you.
Thank you,

I'll find out soon enough. I don't expect to shoot at 40 FPS regularly yet there will be times when I use it.

Morris
 
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I just finished watching Camera Conspiracies' latest video regarding animal tracking in slowmo and looks like your observation lines up with what Kasey found. At 120p and 240p, animal tracking is nearly unusable. From his video the XH2S struggled mightily to keep tracking on birds on the ground. It's quite baffling to see.
There's been some discussion about why we don't see Fuji sending out demo units of the full production cameras. I honestly wonder how much they want stuff like that out there on from bigger channels with a lot of reach. In either event the inability to focus in high frame rates is kind of ridiculous considering how much better the AF performance is in 60p and under. Makes me curious if they are throttling the professor at high FPS to avoid overheating.
 
Thanks for the write-up, weird ti read about af at 120fps and even more about sandisk cars, as i own only sandisk extreme uhs-i and i have no problems at all with xt3 at 400mbps.. :/

Do you feel eterna dr is better than xt3/4 ?

Anyway it really seem some firmware improvement is needed here
 
Thanks for the write-up, weird ti read about af at 120fps and even more about sandisk cars, as i own only sandisk extreme uhs-i and i have no problems at all with xt3 at 400mbps.. :/

Do you feel eterna dr is better than xt3/4 ?

Anyway it really seem some firmware improvement is needed here
I've had no issues with SanDisk cards for video in my XT4 or previously with the XH1. For whatever strange reason the XH2s can't handle 200mbps with them. I should also note that it wasn't just one card. It was five different cards. With my XT4 I found that eterna with DR200% has done pretty much everything I need it to do unless it's an especially torturous situation. The XH2s is no different. It's not any better but I don't necessarily need it to be.

It's a draft and I'm still tweaking things but I thought I'd also share some footage from the wedding I shot. It's just the sneak peek video so pretty much made for social media which isn't my favorite but this is pretty much all shot on the XH2s except for maybe three clips.

 
First, thank you for taking the time to post your insightful comments. As an H2S owner and stills only shooter I am eager to take advantage of the video capabilities, but I’m completely unfamiliar with video. Mine is a general question: can you or anyone recommend a course or primer on video via a hybrid camera or specifically the H2S? Unfortunately all the codecs and things like flog are Greek. I gathered enough from your review that I should probably just stick to 4K but don’t know anything about frame rates and editing software. Thx in advance, Fred
 
First, thank you for taking the time to post your insightful comments. As an H2S owner and stills only shooter I am eager to take advantage of the video capabilities, but I’m completely unfamiliar with video. Mine is a general question: can you or anyone recommend a course or primer on video via a hybrid camera or specifically the H2S? Unfortunately all the codecs and things like flog are Greek. I gathered enough from your review that I should probably just stick to 4K but don’t know anything about frame rates and editing software. Thx in advance, Fred
Hey Fred shoot me a DM on here. Depending on your urgency I could give you some one on one time.
 
Great write-up! Thank you for this.
 
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Thanks for super valuable info.

I'm new to video codecs (but experienced in stills x-pro2 user). Any recommendations on codecs to use when shooting Eterna & Flog 1 & 2 (for good quality). Thanks in advance.

I'm trying to decide between bmpcc 4k and X-H2S. I want to choose the X-H2S, but main concerns are file size. bmpcc 4k has BRAW (compressed) and allows recording to external Sandisk T5 which seems to solve for this reasonably well based on reviews. I love Fuji's film simulations, and will likely love Eterna for video (I generally use Classic Chrome for stills). I've also already got some fuji glass so that is also a benefit for me.

My goal is to get something that can be used for narrative films, mostly 4k, 24p @ 180 degree shutter angle (i.e. 1/48s). I think I would eventually use mostly flog 2. (I conceptually understand its DR benefits)

In summary it is the codecs (H.264, H.265 and ProRes (422 HQ, 422 or 422 LT)) that I'm looking for guidance on, with a balance between quality (very important) and reasonable file size (secondary but still important). I also don't yet understand what the the chroma setting of 4:2:2 or 4:2:0 is.

For comparison:

bmpcc 4k: 4K DCI (4096 x 2160) BMD RAW 3:1 @23.98fps gets 9min on 64GB and 154 min on 1TB (source)

x-h2s: 4k ProRes 422 HQ 4:2:2 10-Bit 1877Mbps 234.62MB/s gets 9min on 128GB and 18min on 256GB and 36min on 512GB (source )

Thanks for any insight / recommendation on good codec choices for balancing file size with reasonable quality (good enough for indie film).
 
Thanks for super valuable info.

I'm new to video codecs (but experienced in stills x-pro2 user). Any recommendations on codecs to use when shooting Eterna & Flog 1 & 2 (for good quality). Thanks in advance.

I'm trying to decide between bmpcc 4k and X-H2S. I want to choose the X-H2S, but main concerns are file size. bmpcc 4k has BRAW (compressed) and allows recording to external Sandisk T5 which seems to solve for this reasonably well based on reviews. I love Fuji's film simulations, and will likely love Eterna for video (I generally use Classic Chrome for stills). I've also already got some fuji glass so that is also a benefit for me.

My goal is to get something that can be used for narrative films, mostly 4k, 24p @ 180 degree shutter angle (i.e. 1/48s). I think I would eventually use mostly flog 2. (I conceptually understand its DR benefits)

In summary it is the codecs (H.264, H.265 and ProRes (422 HQ, 422 or 422 LT)) that I'm looking for guidance on, with a balance between quality (very important) and reasonable file size (secondary but still important). I also don't yet understand what the the chroma setting of 4:2:2 or 4:2:0 is.

For comparison:

bmpcc 4k: 4K DCI (4096 x 2160) BMD RAW 3:1 @23.98fps gets 9min on 64GB and 154 min on 1TB (source)

x-h2s: 4k ProRes 422 HQ 4:2:2 10-Bit 1877Mbps 234.62MB/s gets 9min on 128GB and 18min on 256GB and 36min on 512GB (source )

Thanks for any insight / recommendation on good codec choices for balancing file size with reasonable quality (good enough for indie film).
So I'm clearly going to be a bit biased because of my love for the XH2s but that's definitely what I'd steer you towards. The black magic makes a really nice video but unless you plan to 100% manually focus that camera has absolutely useless AF. I hear where you're coming from with file sizes but quality is always going to come with a hefty amount of storage used. There's no magic bullet with compression. Don't waste your time with h.264. You are going to want h.265 as it gives you better color options. ProRes is very impressive and what I'd recommend for shooting log. Speaking of, I recently compared side by side footage of F-log2 recorded in ProRes and ProRes raw recorded to an external recorder. No joke, I got more flexibility and DR out of the F-log2 footage. It was close, but that made me never want to bother with it again. Unless you really mess up the white balance internal log is the better option. I didn't reread my original post but I believe I made mention of memory card issues but since switching to Sony cards I've had zero issues. For a reasonable file size while still getting a really nice file I'd go with ProRes LT. It's really the happy middle ground and pretty much all I've been using when shooting log. ProRes HQ is so insanely overboard that outside of just testing it out I can't see myself using it until we get to about $.60 per gig for CF Express memory. I'm less picky when shooting eterna and will use h.265 with a reasonable bit rate. On the subject of eterna, I've intentionally saved the best for last. It's the reason I first bought a Fuji camera when the XH1 came with it. It's such a great sim that I'm pretty confident that once you try it you may not want to bother with log. I run a somewhat tweaked version of eterna that I've shot an absolute ton of footage with. There's a good amount of dynamic range and it only requires a light hand in post to get a phenomenal looking final product.

Anyway, the quality that the XHs is capable is pretty astounding. For the price point it's really a home run and as a bonus you can also take really great photos with it. I'd easily give it the edge over the black magic for video alone but when you also consider that this is a very capable photography camera as well it's a no brainer for me.
 
Dear Fuji Maine, thank you so much for sharing your extensive notes on X-H2s application for video. I am especially grateful because I am planning to upgrade my older X-Trans III bodies next year (they are good for video but not at the level I'd like to) and X-H2s is probably the first (if not only) viable option to me to go for - so this knowledge is invaluable.

I have a few comments and questions (this is inevitable in my case :-) ) can you please share a few words on these? I am skipping some parts of your quoted text for the sake of compactness, please accept my apologies in case I will unintentionally "overskip" something important.
Let's start with the most important and most impressive first. Whether it's high bit rate capabilities in h.265 or the even more insane ProRes intake this camera makes complete use of its 6k over sampled 4k footage. Expect to sell an organ to fund memory card investments (which I'll discuss in its own category) as ProRes HQ in the highest quality video recording settings will burn through an eye watering 4.7ish gigs per second of footage.
Actually I have a solid impression that shooting ProRes HQ is only feasible with an external HDMI UHD recorder (Atomos Ninja V or the like) equipped with an 1-2 TB SSD.

(Any) ProRes to the internal card storage? I'd better avoid doing this as a whole.
4k 60 is noticably improved over the XT4.
Wow these are really Good News now. 4k 60p on a fast-readout sensor, this is what I am chasing for my purposes.
4k 120p isn't quite as good but honestly isn't terribly noticable right next to the higher detailed frame rates and I'd never be reluctant to use it based on quality.
Nice to know!
[...120p & 240p part skipped...]

Fortunately I can't think of any time I would have a need for a frame rate that high.
Agreed completely!
6.2k open gate has it's uses but I won't be using it a ton outside of things shot intentionally for social media.
What 6.2k has to do in common with social media, I wonder. Never thought of it this direction; 16:9 frame is pretty much what I am happy with. Or maybe you are speaking of "vertical" 2:3 frame, like what is common from smartphones?
Autofocus:

For 60p frame rates and under, it is significantly more confident than ever before from Fuji and in most circumstances it works quite effectively. Face and eye detect AF is sticky and accurate.
From your experience, how big is perceived difference in AF performance between 4k 60p and 4k 30p with various settings?

Did you test AF at FHD 60p and/or 30p?

Thanks :) for my cameras I found AF-C is usable at FHD but way too clumsy at 4k, also 4k on my X-Trans III bodies is undersampled, so I am stuck with FHD shooting because it actually works better, and 4k 60p 10bit 4:2:2 H.265 at 360 Mbps is my dream.

Can X-H2s write H.265 10bit 4:2:2 internally to (any) memory card? 360 Mbps is perfectly enough, I don't need 720 as of now :) Thanks!
Some refinement is still needed and although I've given up on kaizen will hopefully come in future firmware updates.
Kaizen in Fuji firmware updates... probably too good to be true... ?
One large annoyance I ran into several times in a wedding environment is that the AF box seems to have no impact on face detection. No matter what AFC settings are used the camera does not prioritize the face that is currently in the box on the screen making face detection nearly unusable in medium-wide and wider shots with multiple subjects.
...my older bodies behave the same way :( so no improvement here, I think
This is where things get really complicated and I'm still trying to figure out exactly what's going on with this camera. Buyer beware do not attempt to use any version of SanDisk extreme memory cards with this camera or you will experience problems. The CF express cards can't handle 4k 120p, ProRes at any frame rate or 6.2k. The problem is, if you were to look at Fuji's website for card recommendations, The chart they have only one of those things as limited. You will experience frame dropping and glitching in the video files. UHS 1 and UHS 2 SanDisk cards also do not meet what is listed as the tolerances by Fuji for those specific cards as well.
The whole CF Express card story is somewhat mysterious to me - I think it would be logical to have either 2 x CFX slots or 2 x UHS slots, and not two different ones, where one is more capable then the other.
Here's where things get even more complicated though and I have recorded hours of footage to test this issue to continue to find consistent results. Specifically with the V30 UHS 1 cards, you should be able to record up to 200 megabits per second according to Fuji. I can tell you with my XT4 I have recorded about 10 terabytes of footage on those cards using 4K60 at 200 megabits per second without any issue.
This is as expected, 200 Mbps shouldn't be a problem. Usually, there are three numbers for transfer rates of UHS cards published - this is a link to a (sample) datasheet:
  • peak read rate - here "* Up to 200 MB/s",
  • peak write rate - here "* Up to 140 MB/s", but this is for the bigger capacity (256+) cards only, probably they utilize 2 channel controller, while smaller cards (up to 128) can do "up to 90 MB/s",
  • and the most interesting part: sustained write speed which is not published officially, but you can google for some test results which may differ from the peak speed significantly and are very dependable on the hardware of the card reader used.
Ironically, the SanDisk 200 MB/s 256 Gb cards doesn't show it's best write speed with the SanDisk own card reader ;)

So I suspect there may be some kind of hardware incompatibility issue between the X-H2s card slot controller and SanDisk in-card memory controller.
On the XH2S using those exact same settings, h.265 4:2:0, about 1/3 of the video is glitchy and has significant frame drop. But that's not what is complicated. What really scratched my head, and I first found it by mistake, is that if you format those cards with the XT4 and then use them in the XH2S it doesn't seem to have a problem.
Mystics...
This seems to also apply for the issues I was having with the UHS2 cards as well. There's something about how the XH2S is formatting cards that is affecting it. This appears to only be with SanDisk cards though.
Even more mystics... maybe X-H2s switches the SanDisk internal memory controller into some strange mode when formatting, and this causes loss of performance...
In all of the test footage I shot this weekend with Sony tough memory cards I experienced none of these problems.
Did you try Lexar UHS-I and/or UHS-II cards in X-H2s?
I've got to think it is something specific with SanDisk and this model of camera.
Definitely it is.
Overheating:

I'm happy to report there's nothing to report. I shot the majority of the wedding day with an external battery pack plugged into the USB-C port and maybe that was enough to not cause heating issues but it was in the upper 80's and I never once got a warning.
I think the key point here is "external" because the battery is the main source of heat for camera body internals; external battery dissipates heat elsewhere around.

Did you have internal battery in it's slot, too?
I'm glad I didn't bother to order the fan!
Hmmm probably the fan is needed for internal battery shooting?
F log 2 appears to be all that it was cracked up to be in my test so far. One of the large reasons I shoot with Fuji cameras and first made the switch is because of the eterna film simulation. Although the log footage is impressive I will continue to use eterna for 90% of the time. When a specific project calls for it flog2 will certainly provide very impressive capability though. Just like in the XT-4 you can preview a rec 709 image on the screen which I will mention for anyone who didn't realize that it did that. That was a very welcomed added feature in the XT4. The LUTs that Fuji provides to convert log to eterna is still a bone of contention with me as it results in an image significantly more contrasty and oversaturated than eterna is. Yes you can turn down how heavily the LUT is applied in any software but it's not just as simple as only using it at 90%. It just does not have the tonality that eterna has straight out of camera.
Hmmm. Maybe there is some third-party and better LUT for F-Log2 hanging around waiting for giving it a try?

BTW, do you use Eterna footage for further color-grading with other LUT(s) or is it Ok to use it directly as a delivery color grade?
Just like for FLOG 1, I will be forced to convert to 709 and color grade from there but it would have been nice to be able to use log alongside eterna for an even close to matched result.
Hmmm. Nice to know this details, thanks.
If you are using an older machine and especially one that isn't a Mac you're going to want to use H.265 and limit yourself to 4:2:0. It seems like lots of things have an issue with 4:2:2 including stock video players.
Ok, actually not everything is so bad here.

Suppose your acquisition codec (produced by the camera while shooting) is H.265 4:2:2.

There is nothing bad in transcoding your footage into some "proxy" lightweight montage codec, like i.e. DNxHR LB in 1/2 resolution, just for smooth editing. My computer is old (it was high-end 9 years ago) so I use this technique routinely.

Than when editing and grading all are done, you can render the master copy of your outcome into the best possible quality video codec - say ProRes HQ, or DNxHR HQX, 4:2:2 or even 4:4:4, with PCM audio of the best quality... just get enough disk space handy.

And having your master copy, you can easily transcode it into whatever your delivery codec should be, at any moment - be it H.265, VP9, H.264, ... and fine-tune the settings of your transcoder software (I use ffmpeg wrapped into a few scripts) to achieve the required balance between video quality and file size. One version for YouTube, the other for home theater TV, yet another for I don't know what... No problem - you have your single (bigggg!!!) master copy and transcode it into whatever is needed upon request.
Overall impressions:

This is certainly the best that Fuji has done so far, and with a little more development on the firmware side it could be the ultimate prosumer hybrid camera. There is nothing else on the market that checks as many boxes, even if some things still come with a check minus, at this price point.

I'm happy to answer any additional questions I might have missed in this review.
:-)
 
Dear Fuji Maine, thank you so much for sharing your extensive notes on X-H2s application for video. I am especially grateful because I am planning to upgrade my older X-Trans III bodies next year (they are good for video but not at the level I'd like to) and X-H2s is probably the first (if not only) viable option to me to go for - so this knowledge is invaluable.

I have a few comments and questions (this is inevitable in my case :-) ) can you please share a few words on these? I am skipping some parts of your quoted text for the sake of compactness, please accept my apologies in case I will unintentionally "overskip" something important.
Let's start with the most important and most impressive first. Whether it's high bit rate capabilities in h.265 or the even more insane ProRes intake this camera makes complete use of its 6k over sampled 4k footage. Expect to sell an organ to fund memory card investments (which I'll discuss in its own category) as ProRes HQ in the highest quality video recording settings will burn through an eye watering 4.7ish gigs per second of footage.
Actually I have a solid impression that shooting ProRes HQ is only feasible with an external HDMI UHD recorder (Atomos Ninja V or the like) equipped with an 1-2 TB SSD.

(Any) ProRes to the internal card storage? I'd better avoid doing this as a whole.
Nope it can do ProRes HQ internally. The only thing it can't do internal is ProRes raw. After some testing I'm actually getting better flexibility out of F-log2 than ProRes raw. Just get your white balance even close and you'll never have a reason to need raw.

4k 60 is noticably improved over the XT4.
Wow these are really Good News now. 4k 60p on a fast-readout sensor, this is what I am chasing for my purposes.
4k 120p isn't quite as good but honestly isn't terribly noticable right next to the higher detailed frame rates and I'd never be reluctant to use it based on quality.
Nice to know!
[...120p & 240p part skipped...]

Fortunately I can't think of any time I would have a need for a frame rate that high.
Agreed completely!
6.2k open gate has it's uses but I won't be using it a ton outside of things shot intentionally for social media.
What 6.2k has to do in common with social media, I wonder. Never thought of it this direction; 16:9 frame is pretty much what I am happy with. Or maybe you are speaking of "vertical" 2:3 frame, like what is common from smartphones?
Yes I was talking about optimal viewing format for smart phones. If you're smart about how you frame things you could actually get away with using open gate footage for both smartphone and widescreen framing. This would be a special useful for advertising work.
Autofocus:

For 60p frame rates and under, it is significantly more confident than ever before from Fuji and in most circumstances it works quite effectively. Face and eye detect AF is sticky and accurate.
From your experience, how big is perceived difference in AF performance between 4k 60p and 4k 30p with various settings?

Did you test AF at FHD 60p and/or 30p?

Thanks :) for my cameras I found AF-C is usable at FHD but way too clumsy at 4k, also 4k on my X-Trans III bodies is undersampled, so I am stuck with FHD shooting because it actually works better, and 4k 60p 10bit 4:2:2 H.265 at 360 Mbps is my dream.

Can X-H2s write H.265 10bit 4:2:2 internally to (any) memory card? 360 Mbps is perfectly enough, I don't need 720 as of now :) Thanks!
There seems to be no perceivable difference between 60p and 24p with regards to autofocus performance. This was not the case with the XT-4. I have not shot any FHD footage yet with the XH2S but if it's anything like the XT4 and XH1 was the FHD will be some of the best out of any hybrid camera.
Some refinement is still needed and although I've given up on kaizen will hopefully come in future firmware updates.
Kaizen in Fuji firmware updates... probably too good to be true... ?
Turned out not to be too good to be true. Firmware version 1.03 brought a slight improvement to all frame rates and finally made autofocus in 120P actually work where previously it was terrible to the point of unusable.
One large annoyance I ran into several times in a wedding environment is that the AF box seems to have no impact on face detection. No matter what AFC settings are used the camera does not prioritize the face that is currently in the box on the screen making face detection nearly unusable in medium-wide and wider shots with multiple subjects.
...my older bodies behave the same way :( so no improvement here, I think.
This is where things get really complicated and I'm still trying to figure out exactly what's going on with this camera. Buyer beware do not attempt to use any version of SanDisk extreme memory cards with this camera or you will experience problems. The CF express cards can't handle 4k 120p, ProRes at any frame rate or 6.2k. The problem is, if you were to look at Fuji's website for card recommendations, The chart they have only one of those things as limited. You will experience frame dropping and glitching in the video files. UHS 1 and UHS 2 SanDisk cards also do not meet what is listed as the tolerances by Fuji for those specific cards as well.
The whole CF Express card story is somewhat mysterious to me - I think it would be logical to have either 2 x CFX slots or 2 x UHS slots, and not two different ones, where one is more capable then the other.
I think it made sense that they did it this way. If they put in two CFX slots there would have been I think lots of people upset about having to unnecessarily replace very capable UHS2 cards.
Here's where things get even more complicated though and I have recorded hours of footage to test this issue to continue to find consistent results. Specifically with the V30 UHS 1 cards, you should be able to record up to 200 megabits per second according to Fuji. I can tell you with my XT4 I have recorded about 10 terabytes of footage on those cards using 4K60 at 200 megabits per second without any issue.
This is as expected, 200 Mbps shouldn't be a problem. Usually, there are three numbers for transfer rates of UHS cards published - this is a link to a (sample) datasheet:
  • peak read rate - here "* Up to 200 MB/s",
  • peak write rate - here "* Up to 140 MB/s", but this is for the bigger capacity (256+) cards only, probably they utilize 2 channel controller, while smaller cards (up to 128) can do "up to 90 MB/s",
  • and the most interesting part: sustained write speed which is not published officially, but you can google for some test results which may differ from the peak speed significantly and are very dependable on the hardware of the card reader used.
Ironically, the SanDisk 200 MB/s 256 Gb cards doesn't show it's best write speed with the SanDisk own card reader ;)

So I suspect there may be some kind of hardware incompatibility issue between the X-H2s card slot controller and SanDisk in-card memory controller.
On the XH2S using those exact same settings, h.265 4:2:0, about 1/3 of the video is glitchy and has significant frame drop. But that's not what is complicated. What really scratched my head, and I first found it by mistake, is that if you format those cards with the XT4 and then use them in the XH2S it doesn't seem to have a problem.
Mystics...
This seems to also apply for the issues I was having with the UHS2 cards as well. There's something about how the XH2S is formatting cards that is affecting it. This appears to only be with SanDisk cards though.
Even more mystics... maybe X-H2s switches the SanDisk internal memory controller into some strange mode when formatting, and this causes loss of performance...
In all of the test footage I shot this weekend with Sony tough memory cards I experienced none of these problems.
Did you try Lexar UHS-I and/or UHS-II cards in X-H2s?
No I've just stuck with the Sony cards as they seem to be working great.
I've got to think it is something specific with SanDisk and this model of camera.
Definitely it is.
Overheating:

I'm happy to report there's nothing to report. I shot the majority of the wedding day with an external battery pack plugged into the USB-C port and maybe that was enough to not cause heating issues but it was in the upper 80's and I never once got a warning.
I think the key point here is "external" because the battery is the main source of heat for camera body internals; external battery dissipates heat elsewhere around.

Did you have internal battery in it's slot, too?
Yes when I had the external power pack connected I also had the battery in the body. Even running it without the external pack and just using the internal battery I still haven't had any heat issues. Knock on wood.
I'm glad I didn't bother to order the fan!
Hmmm probably the fan is needed for internal battery shooting?
No I don't think so like I said I haven't had any issues and it's not for lack of use!
F log 2 appears to be all that it was cracked up to be in my test so far. One of the large reasons I shoot with Fuji cameras and first made the switch is because of the eterna film simulation. Although the log footage is impressive I will continue to use eterna for 90% of the time. When a specific project calls for it flog2 will certainly provide very impressive capability though. Just like in the XT-4 you can preview a rec 709 image on the screen which I will mention for anyone who didn't realize that it did that. That was a very welcomed added feature in the XT4. The LUTs that Fuji provides to convert log to eterna is still a bone of contention with me as it results in an image significantly more contrasty and oversaturated than eterna is. Yes you can turn down how heavily the LUT is applied in any software but it's not just as simple as only using it at 90%. It just does not have the tonality that eterna has straight out of camera.
Hmmm. Maybe there is some third-party and better LUT for F-Log2 hanging around waiting for giving it a try?

BTW, do you use Eterna footage for further color-grading with other LUT(s) or is it Ok to use it directly as a delivery color grade?
The eterna that I shoot has the highlights shadows sharpness and color saturation all altered so there is still some work to do in post however pretty minor. Most people could probably happily get away with just the stock eterna for delivery. I don't really use LUTS unless I'm converting log footage. Most of the people selling them online are crooks and they usually look terrible! I've actually been converting F-Log to just a rec 709 color space with the Fuji lut and grading it from there and have been much happier with that. I understand that most people that don't have an extensive amount of experience with color grading footage might not find it quite so easy. Eterna is perfectly fine for 75% of even paid work so you might as well keep it simple.
Just like for FLOG 1, I will be forced to convert to 709 and color grade from there but it would have been nice to be able to use log alongside eterna for an even close to matched result.
Hmmm. Nice to know this details, thanks.
If you are using an older machine and especially one that isn't a Mac you're going to want to use H.265 and limit yourself to 4:2:0. It seems like lots of things have an issue with 4:2:2 including stock video players.
Ok, actually not everything is so bad here.

Suppose your acquisition codec (produced by the camera while shooting) is H.265 4:2:2.

There is nothing bad in transcoding your footage into some "proxy" lightweight montage codec, like i.e. DNxHR LB in 1/2 resolution, just for smooth editing. My computer is old (it was high-end 9 years ago) so I use this technique routinely.

Than when editing and grading all are done, you can render the master copy of your outcome into the best possible quality video codec - say ProRes HQ, or DNxHR HQX, 4:2:2 or even 4:4:4, with PCM audio of the best quality... just get enough disk space handy.

And having your master copy, you can easily transcode it into whatever your delivery codec should be, at any moment - be it H.265, VP9, H.264, ... and fine-tune the settings of your transcoder software (I use ffmpeg wrapped into a few scripts) to achieve the required balance between video quality and file size. One version for YouTube, the other for home theater TV, yet another for I don't know what... No problem - you have your single (bigggg!!!) master copy and transcode it into whatever is needed upon request.
Yeah transcoding is certainly a viable option and works just fine. I have neither the time nor the patients for additional steps so having a computer that can edit those files is pretty key for me. That said, and I'm not sure if I actually included it in this write up, editing especially the ProRes files on my MacBook pro is smooth as butter.
Overall impressions:

This is certainly the best that Fuji has done so far, and with a little more development on the firmware side it could be the ultimate prosumer hybrid camera. There is nothing else on the market that checks as many boxes, even if some things still come with a check minus, at this price point.

I'm happy to answer any additional questions I might have missed in this review.
:-)
 
Thank you once again for your clear and informative answers! As of now, I think my stock of questions is depleted until I will actually acquire the X-H2s (or maybe another Fuji X body with a stacked sensor, if there will be any ever - X-S20? who knows).
 

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