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Which card for 8k video??

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MasterOfGoingFaster said:
shuncheung said:
The OP is trying to capture 8K video with a Z8. I am afraid that is going to overheat regardless of which card one uses, if the video is more than a few minutes.
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Nope. I've recorded 20+ minutes on my Z8, no problem. But I use good cards.
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And exactly what was the video quality for that 20+ minutes?
MasterOfGoingFaster said:
MasterOfGoingFaster said:
I have both the Z8 and Z9, and I mostly use the Z9 for video. In my experience, the Z8 can handle 4K30p mostly without any issues. 4K60p can be an problem after a little while, e.g. 20 minutes or so, depending on various factors such as ambient temperature, card type .... Likewise, 8K30p will likely be a problem for video longer than a few minutes. That is why I mostly stick with the Z9 for video.
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Odd that you don't mention what cards you use. I use Delkin Black and Angelbird cards in both my Z9 and Z8. No overheat problems with either, even at 8K.

Saying you have problems without details is of little value. If you said "I use Sandisk cards" then we would all tell you its the card. But if you said you used a Delkin Black, Angelbird or one of the many known-good cards, then you would receive different answers.
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I have no Angelbird and SanDisk CFexpress cards. The cards I use for video are Delkin Power G4, Delkin Black and ProGrade Cobalt.

I have captured 8K30p video side by side with a Z8 and a Z9, as I had different lenses on the two cams, both with Delkin Power G4 cards. The Z9 had no problem at all, but the Z8 had a warm card warning after a while. In fact, in over two years using the Z9, I have never gotten any hot card warning, but I also don't shoot 8K60p RAW video. My point is that there is a very clear difference between the Z8 and Z9 concerning heat dissipation. That topic has been discussed on various forum.

About 5 months ago, I ran a bunch of tests on my Z8. You can check this old thread for the details: https://www.dpreview.com/forums/post/67442024
 
Too slow for shooting birds? It is faster than anything else. Can do 4GB per second... The camera write speed, and its buffer is the limit here. Not any card. Unless the card is slower than this.

Since RAW HE is much smaller at 20MB per file, it shoots these continually for 1000+ shots. And I challenge anyone to demonstrate ANY difference in quality at all. I have tried under and over exposure corrections, banding tests, and everything else. I cannot detect any dfference between lossless (50MB), HE* (30MB), and HE (20MB) at all.
 
Peace_VN said:
I quite new z8 user here. I m using Homemade ssd sn520 and bg4, both are good when taking photos but cant record 8k.

Well...in theory the ssd should be fast enough. I tested in pc and get 1000mb/s write easy.

I am. Looking to get reasonably priced card. Which one should i get? I hear from friends thay sandsisk is no good and sony is over priced.

Im thinking about "Angelbird - AV PRO CFexpress B SE. Is it any good?
Click to expand...
I would strongly suggest you watch Ricci's video test with the Z8 (video was posted about a year ago. He goes under the name "Ricci Talks" on Youtube). His finding (if I remember correctly) found that the Delkin Black performs the best (I may have mentioned this in a previous reply).

Some of the Angelbirds can have issues (particularly the older models). The newer ones I don't know about.

Sandisks run hot and may overheat. i have these and they get warm just doing burst shooting.
 
sirhawkeye64 said:
Peace_VN said:
I quite new z8 user here. I m using Homemade ssd sn520 and bg4, both are good when taking photos but cant record 8k.

Well...in theory the ssd should be fast enough. I tested in pc and get 1000mb/s write easy.

I am. Looking to get reasonably priced card. Which one should i get? I hear from friends thay sandsisk is no good and sony is over priced.

Im thinking about "Angelbird - AV PRO CFexpress B SE. Is it any good?
Click to expand...
I would strongly suggest you watch Ricci's video test with the Z8 (video was posted about a year ago. He goes under the name "Ricci Talks" on Youtube). His finding (if I remember correctly) found that the Delkin Black performs the best (I may have mentioned this in a previous reply).
Click to expand...
Ricci did a bunch of tests with many different CFexpress cards when the Z9 came out, as he had a pre-production mode in late 2021. I haven't watched the equivalent video for the Z8.

But the problem is that a lot of new CFexpress cards are introduced every year. E.g. Delkin Black has recently added two different lines of cards. Therefore, any such tests (and video) get out of date pretty quickly. A lot of card models mentioned two years ago have long been discontinued.
sirhawkeye64 said:
Some of the Angelbirds can have issues (particularly the older models). The newer ones I don't know about.

Sandisks run hot and may overheat. i have these and they get warm just doing burst shooting.
Click to expand...
 
shuncheung said:
sirhawkeye64 said:
Peace_VN said:
I quite new z8 user here. I m using Homemade ssd sn520 and bg4, both are good when taking photos but cant record 8k.

Well...in theory the ssd should be fast enough. I tested in pc and get 1000mb/s write easy.

I am. Looking to get reasonably priced card. Which one should i get? I hear from friends thay sandsisk is no good and sony is over priced.

Im thinking about "Angelbird - AV PRO CFexpress B SE. Is it any good?
Click to expand...
I would strongly suggest you watch Ricci's video test with the Z8 (video was posted about a year ago. He goes under the name "Ricci Talks" on Youtube). His finding (if I remember correctly) found that the Delkin Black performs the best (I may have mentioned this in a previous reply).
Click to expand...
Ricci did a bunch of tests with many different CFexpress cards when the Z9 came out, as he had a pre-production mode in late 2021. I haven't watched the equivalent video for the Z8.

But the problem is that a lot of new CFexpress cards are introduced every year. E.g. Delkin Black has recently added two different lines of cards. Therefore, any such tests (and video) get out of date pretty quickly. A lot of card models mentioned two years ago have long been discontinued.
Click to expand...
They probably do, but it would at least be a good starting point at least, particularly if one is looking to save a bit of money and perhaps buy "last year's" generation of card to save some money.

I just remember that at the time, the Black card did quite well, and I think that was during his overheating test which it passed, recorded a full 90 8k RAW video (I think the battery ran out and recording ended, not because of a hot card though).
shuncheung said:
shuncheung said:
Some of the Angelbirds can have issues (particularly the older models). The newer ones I don't know about.

Sandisks run hot and may overheat. i have these and they get warm just doing burst shooting.
Click to expand...
Click to expand...
--
PLEASE NOTE: I usually unsubscribe from forums and comments after a period of time, so if I do not respond, that is likely the reason. Feel free to PM me if you have a questions or need clarification about a comment I made.
 
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shuncheung said:
MasterOfGoingFaster said:
I've recorded 20+ minutes on my Z8, no problem. But I use good cards.
Click to expand...
And exactly what was the video quality for that 20+ minutes?
Click to expand...
8K30p with 2GB Angelbird cards.
shuncheung said:
I have captured 8K30p video side by side with a Z8 and a Z9, as I had different lenses on the two cams, both with Delkin Power G4 cards. The Z9 had no problem at all, but the Z8 had a warm card warning after a while. My point is that there is a very clear difference between the Z8 and Z9 concerning heat dissipation. That topic has been discussed on various forum.
Click to expand...
I agree the Z9 dissipates heat better. It is much more tolerant of hot-running cards. The Z8 doesn't dissipate heat as well, so it is very intolerant of hot-running cards. But a lot of people seem to take this as a Z8 flaw - it isn't - when the card is the actual issue. Both the Z8 and Z9 work fine with cool-running cards. Hotter cards may not work well in a Z8, but it is because of the card. That is why I believe it is important to share the card used when discussing Z8 hot card warnings.
 
MasterOfGoingFaster said:
shuncheung said:
MasterOfGoingFaster said:
I've recorded 20+ minutes on my Z8, no problem. But I use good cards.
Click to expand...
And exactly what was the video quality for that 20+ minutes?
Click to expand...
8K30p with 2GB Angelbird cards.
MasterOfGoingFaster said:
I have captured 8K30p video side by side with a Z8 and a Z9, as I had different lenses on the two cams, both with Delkin Power G4 cards. The Z9 had no problem at all, but the Z8 had a warm card warning after a while. My point is that there is a very clear difference between the Z8 and Z9 concerning heat dissipation. That topic has been discussed on various forum.
Click to expand...
I agree the Z9 dissipates heat better. It is much more tolerant of hot-running cards. The Z8 doesn't dissipate heat as well, so it is very intolerant of hot-running cards. But a lot of people seem to take this as a Z8 flaw - it isn't - when the card is the actual issue. Both the Z8 and Z9 work fine with cool-running cards. Hotter cards may not work well in a Z8, but it is because of the card. That is why I believe it is important to share the card used when discussing Z8 hot card warnings.
Click to expand...
Since the Z9 was introduced about a year and half before the Z8, a lot of the discussion about the Z8’s video limitations are from Z9 owners who would like to add a second cam. There is one Z9 group moderator on FaceBook who captures a lot of video, much more so than me; he added a Z8 when that first came out. After merely a week, he sold that almost brand new Z8 and bought a second Z9, due to overheating issues.

I bought a couple of low-end CFx cards early on when I was using them on my Z6 and D5, but after I picked up a Z9 in early 2022, I only use high-end CFx cards on them. I don’t even trust Angelbird due to the many reported issues, including chips on the casing. Essentially it is all ProGrade or Delkin for me, and Delkin Power 4G above 650G seems to be good enough.
 
shuncheung said:
SteveCooper said:
you asked what card to use, and didn't want to spend the money on a tested and proven card and tried to go cheap- now you've spent money and it isn't working as you hoped, so now what?
Click to expand...
The OP is trying to capture 8K video with a Z8. I am afraid that is going to overheat regardless of which card one uses, if the video is more than a few minutes.

I have both the Z8 and Z9, and I mostly use the Z9 for video. In my experience, the Z8 can handle 4K30p mostly without any issues. 4K60p can be an problem after a little while, e.g. 20 minutes or so, depending on various factors such as ambient temperature, card type .... Likewise, 8K30p will likely be a problem for video longer than a few minutes. That is why I mostly stick with the Z9 for video.
Click to expand...
The point I'm trying to make is multiple responses suggested using the Delkin Black memory cards. I heeded that advice early on and have NOT had any problems shooting up to 20 minutes in 8k internal (which has been the longest I've needed or wanted without using an external Ninja V which works fine for longer video shoots, albeit those shoots are 4k).

The OP chose to ignore said advice and tried to save money (just like users complaining that 3rd party batteries no longer work). I don't understand why someone would buy a Z8 and "cheap out" on batteries or memory cards when operating a high end camera. My budget is tight too, I'm retired, but I've learned in my old age, that you do things right the first time and actually save money because I don't have to buy things twice, or wish I had spent the extra money to do it right.

I feel bad for the OP, because I learned the hard way too, often with inferior glass when my first DSLR was a D90.
 
Two years ago I bought, and then thoroughly heat tested these cards

Delkin Black 512GB

Angelbird AV Pro 2TB Mk2

They were both flawless recording 8K/60/RAW/HIGH able to fill the card in one recording. I got lots of "hot card" and "hot camera" or whatever the exact wording is, but never a shutdown, never a failure from the Z9 camera - except when I put the camera in direct California summer sunshine to intentionally cook it. The camera got up to a surface temperature of something like 130-140F and then the camera trigged a thermal shut down, not the cards.

I have realized that the 8K/60/RAW/HIGH is totally unnecessary it uses far too much storage space and I have not been able to distinguish any quality difference between this setting and 8K/60/RAW/NORM, so I use the Normal setting which is close to half the data rate. I get ~38 minutes per 1TB at 8K/60/RAW/NORM.

Last year I added an additional set of Delkin Power Gen4 1TB cards into my video mix. I don't remember ever testing these with the 8K/60/RAW/HIGH, but they have been flawless in usage at 8K/60/RAW/NORM and able to fill the card in one recording with no heat issues.

With the Power series, the G4 cards are MUCH MUCH faster than the earlier versions, the earlier versions do not even claim on paper to support 8K/60/RAW/NORM so I never used the Power series until they updated to the G4 cards which were launched summer 2023.

Roland.
 
Roland Wooster said:
Two years ago I bought, and then thoroughly heat tested these cards

Delkin Black 512GB

Angelbird AV Pro 2TB Mk2

They were both flawless recording 8K/60/RAW/HIGH able to fill the card in one recording. I got lots of "hot card" and "hot camera" or whatever the exact wording is, but never a shutdown, never a failure from the Z9 camera - except when I put the camera in direct California summer sunshine to intentionally cook it. The camera got up to a surface temperature of something like 130-140F and then the camera trigged a thermal shut down, not the cards.
Click to expand...
That is all great. The problem is that the OP is trying to record 8K video on a Z8, not on a Z9. And it is clear that based on a lot of discussions, including my personal experience, that the Z8 has a lot more trouble with heat dissipation. There are many factors, including ambient temperature, duration of the video, etc. Since I tend to record videos for as long as a full hour, perhaps no card can work well on the Z8 for 8K video, and I am much better off restricting to 4K30p. In my case, I have the option to leave the heavy load to the Z9.
 
shuncheung said:
Roland Wooster said:
Two years ago I bought, and then thoroughly heat tested these cards

Delkin Black 512GB

Angelbird AV Pro 2TB Mk2

They were both flawless recording 8K/60/RAW/HIGH able to fill the card in one recording. I got lots of "hot card" and "hot camera" or whatever the exact wording is, but never a shutdown, never a failure from the Z9 camera - except when I put the camera in direct California summer sunshine to intentionally cook it. The camera got up to a surface temperature of something like 130-140F and then the camera trigged a thermal shut down, not the cards.
Click to expand...
That is all great. The problem is that the OP is trying to record 8K video on a Z8, not on a Z9. And it is clear that based on a lot of discussions, including my personal experience, that the Z8 has a lot more trouble with heat dissipation. There are many factors, including ambient temperature, duration of the video, etc. Since I tend to record videos for as long as a full hour, perhaps no card can work well on the Z8 for 8K video, and I am much better off restricting to 4K30p. In my case, I have the option to leave the heavy load to the Z9.
Click to expand...
I didn't read that the OP was trying to shoot extended long duration clips, and rather had only understood that his problem was with card speed.

There are multiple challenges with trying to record 8K/60 for an hour.

1) actual card capacity in RAW will require at least 1.5TB limiting the choices of card and greatly increasing the cost.

2) card write speed, my success for the cards that have worked would be equally applicable to both Z9 and Z9.

3) card thermals, I suspect my experience on the Z9 with these cards is quite likely to translate over to Z8 usage in a very similar manner, neither has any active cooling on the cards, so I don't see why it would be any difference on the Z8 than the Z9.

4) camera thermals, and indeed, the Z9 appears vastly superior in this regard, so much so that perhaps this the overriding challenge and 8K/60/RAW may simply not be possible on the Z8 for extended durations in normal to high ambient temperatures, perhaps video thermals is the biggest thing separating the Z8 and Z9.
 
You get 44 minutes as NRAW normal quality 8K 60FPS and that takes a 2GB card.

At least thats what it says on the top oled screen. I have not tested that, but it makes sense as when you look a the data rate.

I bought an eBay USED 2TB card, which is superfast, doesnt get very hot and seems to work fine in a cold country like the UK in my Z8. But I only tested for around 25 mins. Wam card came and went a couple of times for 20 secs but then stayed off for the rest of the time. Camera overheat no sign? Set to high temp in camera. I suspect it would keep on going till the battery died.

I think the hot card thing is just a "burned finger" warning as it never stops the recording. Well not here! And it doesent even feel that hot when removed.

This was a Sabrent Rocket Pro (gold) card, 2TB which I tested upon reciept. It is fast, and has 1800MB per second sustained according to manufacturer (doesent slow). Unfortunately these are around 650 UK pounds. But I paid 240 on EBay.

You wont get a full hour at this raw setting at 60fps 8K normal. But you might well get that 44 mins...

I suggest you check auction sites often. He wanted 400. Accepted 240 after 3 attempts at selling. Great card. I suspect its really a 4TB card that is overprovisioned with the rest of the data area hidden. Sabrent have been doing quality SSDs and NVMe's for a long time in the PC world and seem to know what they are doing.

919d92a84d7c4977b9305085a4aa40c0.jpg
 
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Peace_VN said:
I quite new z8 user here. I m using Homemade ssd sn520 and bg4, both are good when taking photos but cant record 8k.

Well...in theory the ssd should be fast enough. I tested in pc and get 1000mb/s write easy.

I am. Looking to get reasonably priced card. Which one should i get? I hear from friends thay sandsisk is no good and sony is over priced.

Im thinking about "Angelbird - AV PRO CFexpress B SE. Is it any good?
Click to expand...
I've owned only Angelbird CFx cards since before I received my Z9 in April of 2021 and my Z8 in June of 2023.

I own a mix of the SX (160GB) and SE (512GB, 1TB) and MK2 (2TB) and no issues with any of them.

I can record 8K60 Raw Normal mode on any of them in my Z9 without write performance issues or excessive heating issues. With my Z8 I can also shoot 8K60 Raw Normal mode long enough to fill the512GB or 1TB card, but not the 2TB card before I get a hot card shutdown when the camera is in the normal temp limit mode. I do not shoot the 8K60 RAW High mode and have no reason to ever do so.

I've never had any quality issues and I appreciate the ability to update the card firmware, if ever required for some future compatibility reason or improved thermal performance. To my knowledge, no other mfr provides this feature and there have been at least 3 updates since I bought my first cards in December of 2020, the first upgrade to provide improved compatibility with the D850 and D500 that I owned at the time.

Cheers!
 
Burgerman said:
You get 44 minutes as NRAW normal quality 8K 60FPS and that takes a 2GB card.

At least thats what it says on the top oled screen. I have not tested that, but it makes sense as when you look a the data rate.

I bought an eBay USED 2TB card,
Click to expand...
Something's not right there. If you are in NORM quality for 8K/60/RAW you should be getting 38min40sec for 1TB. If you're only getting 44min on 2TB something's wrong, or you're not in NORM quality, but HIGH quality instead? But even in HIGH I get 23m21s on 1TB.

My 2TB card give me exactly double this, and my 512GB half. So if you're seeing 44min on NORM I don't think you have 2TB of storage, but something a little more than 1TB.

Perhaps it's why your card was cheaper?

Roland.
 
Well that was from memory. Let me check on the camera!

Trust me its a full 2TB...

A 2TB Sabrent CFe 2 pro gold card.

OK my bad, a correction... You are correct.

In HQ it says 46 mins (2TB). I could have sworn it said 44 mins. Maybe had a few photos on the card.

In Normal Quality it says 1 hour 17 mins. I had let it on HQ by mistake.

So yes in normal you can get that full hour!

When I tested it it ran for 25 mins in HQ and I got bored... It would have continued merrily. How do I know? Because the first thing I did when I got the card was to fill it and check its speed on continuous write with the PC. It wrote on my card reader at around 1GB per second smoothly until full. Limited by the cheap chinesium reader. And in the camera heat from the card wasnt an issue.

I doubt I will ever want to write 8K 60 raw for more than a few mins at a time though...

It smoothes out model planes landing beautifully!
 
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There was a similar thread on Reddit and a representative from Sabrent chimed in. He mentioned that they are working on developing a new 2230 ssd for DIY cards that would "fix" the issue, but wouldn't elaborate as the R&D had just recently begun.
 
Quick Z8 firmware 2.01 test that may help someone... RE-RUN!

Sabrent Pro 2TB gold (£650 new but mine was £240 used ebay) shoots continuous 20fps raw lossless, with an almost a 1 second break after the camera buffer fills, then it just clears it, carries on at the same 20fps speed. It doesent then stutter like other cards. Slightly different behavious than most high speed cards. With HE raw its an endless 20fps and doesent ever slow.

Video test with a half empty battery. Test 8K N-RAW Normal Quality @ 60 fps, and this is the one that I find heats up cards the most. Camera reports 1h 17m.

I got 38 mins before hot card warning, which doesent really mean anything. It didnt feel hot on the end you can touch at all. I suspect its an internal temperature sensor inside the various cards. Much like the NVMe ssd's that I can read in windows since thats why they are. And a warm camera warning soon after that (picture of tiny yellow graphical thermometer?). But it carried on recording merrily regardless. At 46 minutes the battery gave out. I should have started with a full one. Camera temp sensitivity is set to high. I suspect it would have carried on for a fair bit longer.

One thing. With firmware 2.0, the hot camera and hot card errors and various messages were relaxed some. So many of the reports and reviews online do not represent the Z8 as it now is. And of course you should set it to HIGH regarding temp warnings etc.

This is the card (Amazon) https://www.amazon.co.uk/SABRENT-professional-photographers-videographers-CF-XXIT-2TB/dp/B0BZWVMKJR

And no I am not an affiliate and no I dont gain anything by this! Mine came from eBay!

Its good. But I got this for £240 as new. And tested it on a PC thoroughly. It really can write at a sustained garanteed 1300MB per sec or above, and up to 1800MB/s. My card reader only supports 1Gb per sec. But it stayed at this speed right up to the point the card was completely full. I copied a couple of PC compressed backups to the card @ almost 1TB each. It didnt slow. Or get that hot. Behaves like a GOOD ssd.
 
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