PIX 2015
Absolutic

Absolutic

Lives in United States Los Angeles, CA, United States
Works as a attorney
Joined on Jan 6, 2004

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Total: 253, showing: 1 – 20
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Rishi Sanyal, you need really to include the list of lenses you also tried on Canon and Nikon from each brand in the text of the article. Because I know you did in your comments yesterday about 10 times, but reading the comments here it gets boring because many write the same thing, assuming you only used Sigma 50/1.4 and your conclusions are based only based on that combo with D750. Give the list of other Nikon and Canon lenses you used and people would shut up

Direct link | Posted on Aug 21, 2015 at 15:49 UTC as 74th comment | 5 replies
In reply to:

ozturert: I don't think using Sigma on Canikon is a good idea to test low-light focusing. Plus, why did you not use a 35mm lens on Canikons? I wonder how 5Ds would do with a 35mm f1.4L.
Still, obviously Sony came a long way since even A6000 because A6000 is horrible in lowlight focusing. Actually, EM5 is much better than A6000 in that. A7RII is a big step forward.

I agree rather than copy his comment 100 times, he should just include in the text what other lenses he tried on Canon and Nikon with same results

Direct link | Posted on Aug 21, 2015 at 15:46 UTC
In reply to:

Universal Creations: Although the Sigma 50/1.4 Art is a great lens (I have one myself for more than a year), it is a third party lens. Sigma has to do reverse engineering to built in autofocus, because Nikon and Canon don't share the AF technology. That's why Sigma had a lot of trouble in the past (and still has at times) with the AF.
Another flaw in this test is the difference in DoF. You're testing 50/1.4 against 35/1.4. The 50/1.4 has a shallower DoF, so it's harder to nail the focus.
There's also a difference in MFD and the difficulty of focussing at close distance with a longer focal length lens.
And what about AF assist light? Was it used on any of the cameras (the 5DsR doesn't have one btw)? Or maybe only on the Sony. This makes a huge difference in short distance low light shots.

TL:DR this test is flawed.

He also tested 10 -15 native lenses in all focal lengths native to cannikon w same results. The list is in his comment yesterday u can find it

Direct link | Posted on Aug 21, 2015 at 12:28 UTC
In reply to:

ozturert: I don't think using Sigma on Canikon is a good idea to test low-light focusing. Plus, why did you not use a 35mm lens on Canikons? I wonder how 5Ds would do with a 35mm f1.4L.
Still, obviously Sony came a long way since even A6000 because A6000 is horrible in lowlight focusing. Actually, EM5 is much better than A6000 in that. A7RII is a big step forward.

He did use cannikon about 10 lenses as well. He wrote a comment yesterday with a list of native lenses he also tried.

Direct link | Posted on Aug 21, 2015 at 12:26 UTC
In reply to:

nicolaiecostel: "without much hunting" while testing the sony.

Why is the test not ok ?

a) the lens on the Sony is a 35 mm, giving more DOF than the 50 on the DSLR's
b) the lens on the Sony is a genuine lens while the DSLR's are tested with a Sigma lens

Yes, it's impressive that the little guy focuses precisely in such low light. But other than that, there really isn't much to draw from this.

If you like it, go get it, it will be great. Just don't make this into what it is not.

Did u read Rishi comment about 10 or 15 other native lenses they tested work dslrs and same results ?

Direct link | Posted on Aug 21, 2015 at 12:24 UTC

So my Sony Zeis 35/2.8 fe lens under this logic should focus in Caf mode of my a7rii up to EV-1 or somewhere around there am I correct using same logic?

Direct link | Posted on Aug 21, 2015 at 06:03 UTC as 112th comment | 1 reply
In reply to:

sgoldswo: I think the A7RII is a really impressive camera. It's AF system is impressive. Having said that, even with the SEL35F14Z mounted, I don't feel like it focuses faster on a mean or general basis in low light than a D750 with either of the Sigma 35mm or Nikon 35mm F1.8 mounted. What it does do is focus with great accuracy on static subjects, but while sometimes its fast, sometimes it isn't. Sometimes it hunts badly. Basically, it doesn't have the degree of confidence that the D750 inspires for low light AF. This needs to be weighed against accuracy and the large size of the focus area.

The continuous AF performance is impressive, but the first shot is more accurate than those that follow. I also feel like the AF system can't cope with objects approaching or departing as well as a DSLR can. That doesn't make it poor.

It's a different type of camera to a DSLR and I believe a success in its own terms. I'll be using mine alongside my DSLRs - it was my A7II I traded in to buy it...

Glad to know you are thoroughly testing AF-C in continuous drive. My results are curious: sometimes shots in the middle are OOF, sometimes shots at the end are OOF, and I am talking about my child running toward me. Now when my child just walks toward me, it is easy for A7R2 and every shot is in focus, irrespective of what mode I pick. So I suppose for those who shoot models walking toward them on catwalk, A7R2 would do nicely.... .kids running toward you.....not so much

Direct link | Posted on Aug 21, 2015 at 04:47 UTC

That Zeiss 35 1.4 costs $1500. I wonder if sigma 35 1.4 (which I can get used for $700) on a Canon-Sony adapter, will perform the same as the Zeiss in terms of autofocusing ability (just trying to save money here)

Direct link | Posted on Aug 20, 2015 at 18:50 UTC as 164th comment

Great article Rishi!. Now if you could also address my general concern about this camera (A7RII) CAF (I struggled with 55FE lens to keep my child in focus when he was running toward me, it appears that AF points would 'give up' at some point for no apparent reason). I wrote Rishi a message about it, and would love for dpreview to investigate it. Maybe I am not doing something right. I tried everything, 'realease' 'focus' 'balanced approach' and every af mode, and still have camera fail when the object runs toward me and gets closer than 12 feet. But I did found that the low light ability is amazing. I closed myself in dark bathroom with no light other than 1 inch ajar door. This was EV-3 or maybe EV-4. And A7RII just focused on my face each and every time. I could only see a silluette in the mirror, at best. Best low light performance I've seen to date.

Direct link | Posted on Aug 20, 2015 at 18:21 UTC as 168th comment
On Under the hood: A closer look at the Sony a7R II article (592 comments in total)
In reply to:

Lightcapture: Tony Northrup days ago released his extensive tests and reviews of the a7rii and it's generally praised for being thorough and unbiased (he's not sponsored by any camera make). B&H a couple of days ago released a 'live' show with Colby Brown and a videographer (name eludes me atm), with the Sony America rep speaking about the a7rii. They are really pushing this camera right now. But there are concerns about the lossy RAW, and the Sony Rep seemed to hint that they are hard at work bringing out a lossless option in possibly a firmware update in the future. Tony Northrup mentioned the continuous focus of Sony a7rii under low light is still not good compared to a DSLR (one which's half the price of the a7rii, the Nikon 7200). Wonder if you'll be doing tests on low light continuous AF to comfirm this? Also, Max Yuryrev (?) claimed the 4K output is not as good as the GH4 or even the NX1, but he's not happy about the overheating issues. Hope you are testing this too in your upcoming review.

I am curious if Tony used Balance Approach in AF testing of CAF. Rishi writes here in article that Balance Approach selection makes you get out of focus frames between in focus frames. So I wonder if Tony knew it at the time and switched from Balance Approach to Release priority for CAF for his testing

Direct link | Posted on Aug 17, 2015 at 19:57 UTC
On Under the hood: A closer look at the Sony a7R II article (592 comments in total)
In reply to:

Andrei Todea: "Speedy autofocus", "Smart and accurate AF". Good marketing lesson!
I used to love this site back when Phil Askey was in charge. It's such a shame what they did to it. It's still probably the best site with the best community but it's getting harder and harder to open this site everyday.

I agree that hiring Rishi made this site much more exciting. Don't lose that guy to competitors dpreview, keep him at any cost. He is that good.

Direct link | Posted on Aug 17, 2015 at 19:35 UTC
On Under the hood: A closer look at the Sony a7R II article (592 comments in total)

Rishi, do you suggest, in Continuous AF mode, instead of "Balanced approach" I should pick 'release' or whatever Sony equivalent is (my A7R2 is at home and I am at work so I can't look it up). I did set it as balanced approach and I did experienced blur shots between sharp shots in series where my son is running toward me.....

Direct link | Posted on Aug 17, 2015 at 19:34 UTC as 91st comment
On Fujifilm X-T10 Review preview (448 comments in total)

Dpreview, I am not sure if it is clear from your review but Fuji implementation of face detection is as follows: if you turn on face detection, PDAF turns off. You are effectively back to contrast AF only with Face Detection. That is why it does not work effectively in Continuous AF mode. So if you want your PDAF points to work, turn off that Face Detection. Fuji is the only mfr with this weird configuration, on Sony, for example, you can have PDAF and face detection at the same time with no problems.

Another problem, at least on XT1, which was well documented by users (there is a thread in fuji forum about it) is that eye EF is inaccurate in that it consistently focuses on the furthest eye, even though it supposed to on the nearest eye. I ended up just turning that feature off. I want that PDAF

Direct link | Posted on Aug 4, 2015 at 20:11 UTC as 76th comment | 2 replies
On Fujifilm X-T10 First Impressions Review preview (544 comments in total)

Dpreview, does XT10 have same faulty Eye Recognition as XT1 with Firmware 4? We have a running thread here on another forum http://www.fuji-x-forum.com/topic/645-firmware-4-face-recognition-feature-is-not-accurate-re-eye-selection/ where everyone using face recog in FW4 on XT1 pretty much agreed that this is a serious problem that needs to be remedied in the further firmware. Your 'impressions' do not address this exact issue.

Direct link | Posted on Jul 2, 2015 at 17:48 UTC as 23rd comment
On Sony: An eye on focus article (763 comments in total)
In reply to:

Just a Photographer: Not to be crude but eye-focus in the newly 4.0 firmware of the Fuji X-T1 and the X-T10 is much better implemented and always correct.

This Sony knock off sort of works but has a lot of misses looking at the video.

No Fuji fw4 face recognition is years behind Sony. I own xt1. We have a running thread on Fuji x forum
About the fact that eye detection on Fuji is inaccurate and does not focus on the closest eye in auto eye mode. It does not recognize faces upside down. Also face recognition only works wit contrast af on Fuji, when u turn on continuous af with pdaf points, face recognition turns itself off. In fact Fujis implementation of face recognition is the weakest of all mirrorless manufacturers. Olympus is probably the best and Sony close second

Direct link | Posted on Jul 2, 2015 at 15:59 UTC
On Alpha dog: Hands-on with Sony a7R II article (1090 comments in total)

Dpreview team: did you ask Sony how they will address af of screwdriven (yet excellent lenses) like Sonyzeiss 135/1.8, 85 1.4, Minolta 85 1.4G, Minolta Beercan? Back to lightloss LA-EA4 with its limiting AF??? or they are going to release LA-EA5 which would be just like LA-EA3 with screwdriver for motorless lenses???? 135/1.8 is Sony's Benchmark and Bragging rights lens, I cannot believe they are not going to address it. And question 2) A7s is rated at EV-4 sensitivity, A7M2 is rated at EV-1, what is A7RM2 rating?

Direct link | Posted on Jun 11, 2015 at 21:31 UTC as 115th comment | 11 replies
On Fujifilm X-T10 First Impressions Review preview (544 comments in total)
In reply to:

Cheezr: Barney, since I see you used the 16-55F2.8, how did that lens feel on the camera? does it hang over the bottom? E.g., on my e-m10 a few of the bigger lenses hang over the bottom edge of the camera.

Neither Canon in its 24-70LII nor Nikon in its 24-70 decided to include IS in their lenses. The fact that Canon's 24-70 was not long updated to version 2 in its flagman standard zoom lens, when the weight and size is not an issue to begin with (these lenses are heavy, what's another 100 grams to a kilo?) tells me that it has to do with getting absolutely best picture quality in this sort of a lens.

Of course Fuji could have gone Sony A7II way and include IBIS in its bodies, thus making all of their lenses benefit of stablization. Why not do that?

Direct link | Posted on May 18, 2015 at 21:03 UTC
On Fujifilm X-T10 First Impressions Review preview (544 comments in total)
In reply to:

Streetutopia: I was waiting for this announcement thinking that it would lead to an X-e2 price reduction (I have the X-e1). I like this camera so much I am going to get it instead of the X-E2. Lots of gripping in this board about this camera (par for the course) but I like the design of the camera and all of its features. Fuji has made a name for itself by using retro designs. I think this too is a retro design. Reminds me of my old Yashica (60's).

I did like my XE2 (my current fuji camera is XT1) but I was a little worried couple of times a little moisture was involved with XE2: one time a little splash from the ocean when I was shooting on the beach, the camera turned itself off and only woke up much later, I actually thought it was gone. Need some weather resistance in my book.

Direct link | Posted on May 18, 2015 at 20:55 UTC
On Fujifilm X-T10 First Impressions Review preview (544 comments in total)
In reply to:

retro76: Honestly right now the Olympus EM10 is the camera to beat, especially @ $499. I purchased a Fuji XM1 before sending it back for the Oympus. I know it's subjective, but I really don't get the appeal of Fuji, it's a camera that reviewers seem to put on a pedestal, yet IMHO it's a camera that falls short in just about every category especially so compared to other brands I have used. Maybe I missed something in my short time using the camera, but it's a system that didn't impress me in the slightest, in fact it's the most clever marketing I have ever seen for a brand.

I like Olympus and Panasonic lenses. I don't like the fact that I could never go above ISO800 on my Olympus EM5 and EM1 because the noise was just too much for my eyes..... That was my main problem with m43. Even at ISO200 some things like sky often would show noise on my Olys..... APS-C results are much cleaner overall.

Direct link | Posted on May 18, 2015 at 20:53 UTC
On Fujifilm X-T10 First Impressions Review preview (544 comments in total)
In reply to:

FantasticMrFox: "Before the firmware update for the X-T1, it could focus down to 2.5EV. After the update, it can focus all the way down to 0.5EV."

Am I being confused here, is this a mistake by DPR or does the X-T1 really just focus down to 0.5EV? Considering that the Pentax K3 focuses down to -3EV and the Panasonic GX7 even goes down to -4EV, that's just laughable.

it is a guess, because Fuji, unlike Sony or Panasonic does not publish what their EV sensibility in low light is. Sony would telll you they go down to EV-4 in A7s or Panasonic GX7 will also say the y go to EV-4. Sony A7II goes to EV-1. But Fuji does not publish these figures. Fuji's previewer Rico Pfirstinger in his comment to my post said that he believes it is around EV-2 for XT1 Contrast AF, but it is what he believes, I don't think there are published figures. And these things are relative too, for example I own Nikon D750 which is rated EV-3 and I used to own Canon 5DM3 which is rated to EV-2 yet, in very very low ligth, Canon 5DM3 autofocuses even better than D750 (dpreview review of D750 seems to find the same thing here)....

Direct link | Posted on May 18, 2015 at 20:29 UTC
Total: 253, showing: 1 – 20
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