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  Previous versions of Scott Stoness's message #16597214 « Official Canon EOS R5 Mark II Images & Specifications »

  

Scott Stoness
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Re: Official Canon EOS R5 Mark II Images & Specifications


Hairy Heron wrote:
Does anyone know if the R5 II can take advantage of CFx 4.0 card speed? To be clear I'm not talking about base compatibility since I know 4.0 is backwards compatible, but can actually write to the card near the card's advertised read speed.


See below - screenshot - no to cfx4. But yes it should still work at slow speed.
- testing I have seen suggests 80 frames before buffer which is consistent with old delkin black cfx2. Specs say 89 frames. See link below.
- it does much better at craw (200) and less than 30fps
- Canon has not indicated cfx4.
- given the lack of impressive buffer, the throughput is either limited by camera or the card

So don't go buying the expensive v4 cards for the R5II expecting them to make a difference.

I recently tested my r5 and did not get any gain in performance between Delkin Power (800 write sustained) and Delkin Black (1400 write sustained). I expect that this has improved a tiny bit to match the 30fps vs 20fps but not enough to make use of the better sustained write cards.

see about 9.2 mins in

&t=601s




Jul 18, 2024 at 07:09 PM
Scott Stoness
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Upload & Sell: On
Re: Official Canon EOS R5 Mark II Images & Specifications


Hairy Heron wrote:
Does anyone know if the R5 II can take advantage of CFx 4.0 card speed? To be clear I'm not talking about base compatibility since I know 4.0 is backwards compatible, but can actually write to the card near the card's advertised read speed.


See below - screenshot - no to cfx4. But yes it should still work at slow speed.
- testing I have seen suggests 80 frames before buffer which is consistent with old delkin black cfx2.
- it does much better at craw (200) and less than 30fps
- Canon has not indicated cfx4.
- given the lack of impressive buffer, the throughput is either limited by camera or the card

So don't go buying the expensive v4 cards for the R5II expecting them to make a difference.

I recently tested my r5 and did not get any gain in performance between Delkin Power (800 write sustained) and Delkin Black (1400 write sustained). I expect that this has improved a tiny bit to match the 30fps vs 20fps but not enough to make use of the better sustained write cards.

see about 9.2 mins in

&t=601s




Jul 18, 2024 at 06:33 PM
Scott Stoness
Offline
Upload & Sell: On
Re: Official Canon EOS R5 Mark II Images & Specifications


Hairy Heron wrote:
Does anyone know if the R5 II can take advantage of CFx 4.0 card speed? To be clear I'm not talking about base compatibility since I know 4.0 is backwards compatible, but can actually write to the card near the card's advertised read speed.


I don't know officially but I don't think the R5 can take advantage of cfx4. But yes it should still work at slow speed.

- testing I have seen suggests 80 frames before buffer which is consistent with old delkin black cfx2.
- it does much better at craw (200) and less than 30fps
- Canon has not indicated cfx4.
- given the lack of impressive buffer, the throughput is either limited by camera or the card

So don't go buying the expensive v4 cards for the R5II expecting them to make a difference.

I recently tested my r5 and did not get any gain in performance between Delkin Power (800 write sustained) and Delkin Black (1400 write sustained). I expect that this has improved a tiny bit to match the 30fps vs 20fps but not enough to make use of the better sustained write cards.

see about 9.2 mins in

&t=601s




Jul 18, 2024 at 06:32 PM
Scott Stoness
Offline
Upload & Sell: On
Re: Official Canon EOS R5 Mark II Images & Specifications


Hairy Heron wrote:
Does anyone know if the R5 II can take advantage of CFx 4.0 card speed? To be clear I'm not talking about base compatibility since I know 4.0 is backwards compatible, but can actually write to the card near the card's advertised read speed.


I don't know officially but I don't think the R5 can take advantage of cfx4. But yes it should still work at slow speed.

- testing I have seen suggests 80 frames before buffer which is consistent with old delkin black cfx2.
- it does much better at craw (200) and less than 30fps
- Canon has not indicated cfx4.
- given the lack of impressive buffer, the throughput is either limited by camera or the card

So don't go buying the expensive v4 cards for the R5II expecting them to make a difference.

I recently tested my r5 and did not get any gain in performance between Delkin Power (800 write sustained) and Delkin Black (1400 write sustained). I expect that this has improved a tiny bit to match the 30fps vs 20fps but not enough to make use of the better sustained write cards.

see about 9.2 mins in

&t=601s




Jul 18, 2024 at 06:23 PM
Scott Stoness
Offline
Upload & Sell: On
Re: Official Canon EOS R5 Mark II Images & Specifications


Hairy Heron wrote:
Does anyone know if the R5 II can take advantage of CFx 4.0 card speed? To be clear I'm not talking about base compatibility since I know 4.0 is backwards compatible, but can actually write to the card near the card's advertised read speed.


I don't know officially but I don't think the R5 can take advantage of cfx4. But yes it should still work at slow speed.

- testing I have seen suggests 80 frames before buffer which is consistent with old delkin black cfx2.
- it does much better at craw (130) and less than 30fps
- Canon has not indicated cfx4.
- given the lack of impressive buffer, the throughput is either limited by camera or the card

So don't go buying the expensive v4 cards for the R5II expecting them to make a difference.

I recently tested my r5 and did not get any gain in performance between Delkin Power (800 write sustained) and Delkin Black (1400 write sustained). I expect that this has improved a tiny bit to match the 30fps vs 20fps but not enough to make use of the better sustained write cards.

see about 9.2 mins in

&t=601s




Jul 18, 2024 at 06:18 PM
Scott Stoness
Offline
Upload & Sell: On
Re: Official Canon EOS R5 Mark II Images & Specifications


Hairy Heron wrote:
Does anyone know if the R5 II can take advantage of CFx 4.0 card speed? To be clear I'm not talking about base compatibility since I know 4.0 is backwards compatible, but can actually write to the card near the card's advertised read speed.


I don't know officially but I don't think the R5 can take advantage of cfx4. But yes it should still work at slow speed.

- testing I have seen suggests 80 frames before buffer which is consistent with old delkin black cfx2.
- it does much better at craw (130) and less than 30fps
- Canon has not indicated cfx4.
- given the lack of impressive buffer, the throughput is either limited by camera or the card

So don't go buying the expensive v4 cards for the R5II expecting them to make a difference.

I recently tested my r5 and did not get any gain in performance between Delkin Power (800 write sustained) and Delkin Black (1400 write sustained). I expect that this has improved a tiny bit to match the 30fps vs 20fps but not enough to make use of the better sustained write cards.




Jul 18, 2024 at 06:16 PM
Scott Stoness
Offline
Upload & Sell: On
Re: Official Canon EOS R5 Mark II Images & Specifications


Hairy Heron wrote:
Does anyone know if the R5 II can take advantage of CFx 4.0 card speed? To be clear I'm not talking about base compatibility since I know 4.0 is backwards compatible, but can actually write to the card near the card's advertised read speed.


I don't know officially but I don't think they can take advantage of cfx4. But yes it should still work at slow speed.

- testing I have seen suggests 80 frames before buffer which is consistent with old delkin black cfx2.
- it does much better at craw (130) and less than 30fps
- Canon has not indicated cfx4.
- given the lack of impressive buffer, the throughput is either limited by camera or the card




Jul 18, 2024 at 06:08 PM





  Previous versions of Scott Stoness's message #16597214 « Official Canon EOS R5 Mark II Images & Specifications »