Huntin4photos
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R5 Buffer Clearing
- Thread starter Tazz93
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Ok, my turn to beat the dead horse. Just had strange item, and it reproduced several times. Now trying different card.
The card is 128GB (show 119GB in camera). Fast enough to shoot 8k without complaints, and when shooting ~20 bursts it clears buffer in <1 second. (shooting raw)
However, I noticed today that if I go above 43GB usage, it'll slow down to crazy slow. After that point, it'll clear buffer about 1 picture per second (so 20 burst takes ~20 seconds, full buffer takes like one minute or more). Also this point I cannot record 8k video anymore. If I format the card, it's again happy. And it's not gradual change to slow, it's sudden change around the 43GB usage.
Anyone have good contact at Canon to ask about this? Most likely card issue but would be still interesting to understand the failure.
The card is 128GB (show 119GB in camera). Fast enough to shoot 8k without complaints, and when shooting ~20 bursts it clears buffer in <1 second. (shooting raw)
However, I noticed today that if I go above 43GB usage, it'll slow down to crazy slow. After that point, it'll clear buffer about 1 picture per second (so 20 burst takes ~20 seconds, full buffer takes like one minute or more). Also this point I cannot record 8k video anymore. If I format the card, it's again happy. And it's not gradual change to slow, it's sudden change around the 43GB usage.
Anyone have good contact at Canon to ask about this? Most likely card issue but would be still interesting to understand the failure.
Tazz93
Senior Member
Each manufacturer has their own set of "normal" operating parameters. I would think you'd be best served by trying to reach out to the card manufacturer if you can confirm other cards don't have the same issues.
bernie r
Leading Member
If you're not using a CFexpress card, you should.
AndreasOberg
Leading Member
I just got our Canon R5 today.
My buffer only seems to hold about 60 photos. I was expecting much more, around 150 photos.
I use a Sony Tough 512GB Cfast Express.
I shot with electronic shutter and I shot in the High Speed Continous +.
Also on the screen it says that I will be able to shot 45 shots, which is also very low.
I do not use a SD card.
Is this expected?
My buffer only seems to hold about 60 photos. I was expecting much more, around 150 photos.
I use a Sony Tough 512GB Cfast Express.
I shot with electronic shutter and I shot in the High Speed Continous +.
Also on the screen it says that I will be able to shot 45 shots, which is also very low.
I do not use a SD card.
Is this expected?
TigTillinghast
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That card was tested against the others this past fall...
Almost all of the cards ran through the buffer in about 3 seconds when shooting at 20 fps, getting a bit over 60 pictures. When shooting at 12 fps, they did quite a bit better, typically doubling that.
But the buffer is a bit of an arbitrary limit, as most people shoot short bursts, and how quickly things come out of the buffer is super important - and not measured when doing a one-shot, buffer-filling test.
When writing that cards review, we opted to make a primary measure how many images could be taken in :30. Your Sony 512 GB card was one of the models tested, and it did great, reaching almost 300 shots in :30 at 12 fps and about 310 in electronic shutter at 20 fps. So you're getting roughly 10 shots per second over the long-term.
Your card is performing exactly as is expected, and could be improved upon only marginally with any other option.
Almost all of the cards ran through the buffer in about 3 seconds when shooting at 20 fps, getting a bit over 60 pictures. When shooting at 12 fps, they did quite a bit better, typically doubling that.
But the buffer is a bit of an arbitrary limit, as most people shoot short bursts, and how quickly things come out of the buffer is super important - and not measured when doing a one-shot, buffer-filling test.
When writing that cards review, we opted to make a primary measure how many images could be taken in :30. Your Sony 512 GB card was one of the models tested, and it did great, reaching almost 300 shots in :30 at 12 fps and about 310 in electronic shutter at 20 fps. So you're getting roughly 10 shots per second over the long-term.
Your card is performing exactly as is expected, and could be improved upon only marginally with any other option.
Tazz93
Senior Member
Don't fret the buffer number that is displayed. Mine displays 54 shots and delivers 111 in 6 seconds (using the time stamps on the images) before the buffer hiccups. That's an average 18.5 fps over 6 seconds. If you think the actual buffer is filling up to soon, make sure your ISO is reasonably low. ISO makes a big difference. If I up the ISO to 51,200, it will only take 67 shots before the buffer fills.
AndreasOberg
Leading Member
Thanks for the reply. I did some practical tests, and it seemed I could capture around 50-60 images at 20fps.
I will do some more tests. To be realistic I think 12fps may be a better choice Can you have this speed with the electronic shutter?
I will do some more tests. To be realistic I think 12fps may be a better choice Can you have this speed with the electronic shutter?
Tazz93
Senior Member
I'm getting significantly more shots prior to the buffer stepping in. Are you engaging any special features? For example, I've been lazy and left HTP on, but still get approximately 90 shots (or 3.70 GBs) before the buffer slows the shooting when shooting in a normal manner in e-shutter (ISO under 800, proper exposure, with a varied scene). It could also be explained if you are using ISOs over 3200. At 3200, I still see 75 shots with a proper exposure and a varied scene, but that is much closer to your findings.
Yana2
Well-known member
I have a R3 and noticed that now the Camera's buffer clear speed is different when out of the box.
It's very slow! I need a minute to clear the buffer (about 150 shots) ! What the h.....
Does the problem on the CFE card?
Firmware? Card get old? Format? Slow SD Card?
On Pergear CFE card web site, it has a table said that R3 6K RAW need 325MB/s, ok, I try start a 6K video shooting.
That's no problem on 6K RAW Video, that's mean my card at least write at 325MB/s, so it's not make sense it need a minute to write that 150 photos.
Than, I pick up the camera, play around on the MENU, I got the answer: Photo Processing.
HDR, Lighting Optimizer, Noise reduction, Lens aberration correction.... all features need Camera to process.
Try disable them all, buffer clear instantly.
It's very slow! I need a minute to clear the buffer (about 150 shots) ! What the h.....
Does the problem on the CFE card?
Firmware? Card get old? Format? Slow SD Card?
On Pergear CFE card web site, it has a table said that R3 6K RAW need 325MB/s, ok, I try start a 6K video shooting.
That's no problem on 6K RAW Video, that's mean my card at least write at 325MB/s, so it's not make sense it need a minute to write that 150 photos.
Than, I pick up the camera, play around on the MENU, I got the answer: Photo Processing.
HDR, Lighting Optimizer, Noise reduction, Lens aberration correction.... all features need Camera to process.
Try disable them all, buffer clear instantly.
R2D2
Forum Pro
+1 I too disable all of those during initial setup. Have done so with all of my cameras for many years since those “features” first appeared. Buffer clearing is very fast!
Now I have to go test my cams to see if using the EVF slows down buffer clearing (as was noted in the previous posts), and whether or not settings like “Exposure Sim” or using the Histogram, or Level, etc affect buffer clearing.
Man these cameras are complex! :-O
R2
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This has been the case for several years, turning off all internal processing has been particularly advocated by wildlife and sports photographers using the 5D and 1DX series dSLRS. It’s really good to be reminded about this, go check your settings!I have a R3 and noticed that now the Camera's buffer clear speed is different when out of the box.
It's very slow! I need a minute to clear the buffer (about 150 shots) ! What the h.....
Does the problem on the CFE card?
Firmware? Card get old? Format? Slow SD Card?
On Pergear CFE card web site, it has a table said that R3 6K RAW need 325MB/s, ok, I try start a 6K video shooting.
That's no problem on 6K RAW Video, that's mean my card at least write at 325MB/s, so it's not make sense it need a minute to write that 150 photos.
Than, I pick up the camera, play around on the MENU, I got the answer: Photo Processing.
HDR, Lighting Optimizer, Noise reduction, Lens aberration correction.... all features need Camera to process.
Try disable them all, buffer clear instantly.
You do realize those features only do something when shooting jpeg?
R2D2
Forum Pro
You do realize that those features DO affect camera performance even when shooting RAW only? The effective buffer size is cut to less than half (before slowdown), and the card writing takes MUCH longer.
Just try it yourself!
R2
I tried it on my R5 with e-shutter, CRAW in M mode. Holding down the shutter for 10 seconds gave me 106 images with all the correction options disabled and 108 images with DLO, PI, correction etc enabled. To me, that's the same performance for both.
R2D2
Forum Pro
Whoops, another plus for the R5!
I had tested this on my R7 earlier and it indeed had a profound effect on both the buffer and the write speeds. However I just grabbed my R5 and as you say it had little or no effect!
Another "hidden" advantage of the R5! :-D Apologies!
R2
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Good judgment comes from experience.
Experience comes from bad judgment.
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I suspect it's the HDR and/or the NR one that slows things down. For long exposures the in-camera noise reduction will take a black frame, which effectively doubles the time.Whoops, another plus for the R5!
I had tested this on my R7 earlier and it indeed had a profound effect on both the buffer and the write speeds. However I just grabbed my R5 and as you say it had little or no effect!
Another "hidden" advantage of the R5! :-D Apologies!
Canon made a big deal about the digic 8 being able to do DLO, PI and corrections in real time, so anything using the digic 8 and digic X should be able to use all the corrections with no performance penalty, especially in (C)RAW.
R2D2
Forum Pro
I did not enable Long Exposure NR when testing (for that reason of course). So that wasn't the cause of the R7's slowdown.I suspect it's the HDR and/or the NR one that slows things down. For long exposures the in-camera noise reduction will take a black frame, which effectively doubles the time.Whoops, another plus for the R5!
I had tested this on my R7 earlier and it indeed had a profound effect on both the buffer and the write speeds. However I just grabbed my R5 and as you say it had little or no effect!
Another "hidden" advantage of the R5! :-D Apologies!
Maybe someone else will do more testing (as I normally keep all of those features disabled anyways).
R2
Abbott Schindler
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The R5 with ES and a sufficiently charged battery is capable of 20 fps, so mashing the release button for 10 seconds should have given you 200 frames. Do you know why you only got 108? Was the battery charge below what's needed for 20 fps? Or do you think that CRAW processing slowed the write speed down?
I've used 3 brands of CFexpress cards in my R5's, and the camera's behavior varies a bit with them. My 528 GB Delkin Power cards are fastest (R and W), and 128 GB Sony Tough are next. The cameras have so far worked flawlessly with them.
I've also got a pair of ProGrade cards, which BlackMagic Speed Test measures as being significantly slower than the other two, and W is worse than R (the cards' labels have the usual "up to xx MB/s" claim), in both ProGrade and Delkin readers. One R5 has locked up twice, once with each of the ProGrade cards; and so far never with the other brands. At this point I've relegated the ProGrade cards to spares.
Just curious about your record speeds, as my cameras get closer to 20 fps when recording .CR3 files and with all in-camera processing turned off as described earlier in this thread.
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