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Thread started 22 Mar 2012 (Thursday) 17:14
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Which CF Card for the 5D Mk III??

 
montroyal
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Apr 04, 2012 13:28 |  #46

i've looked at Rob Galbraith's tests and i was wondering if, considering that SD is way slower than CF, does it make sense to use SD cards anyway for video while have a CF card in its slot

meaning using both slots

or should i only use CF for all usage in order to optimize photo & video performance?


Canon 5D Mark III, Canon 24-70 2.8L, Canon 70-200 4L IS, Canon 17-40 4L, flash Canon 430EX II

  
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bosmankb
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Apr 04, 2012 17:21 |  #47

montroyal wrote in post #14209239 (external link)
i've looked at Rob Galbraith's tests and i was wondering if, considering that SD is way slower than CF, does it make sense to use SD cards anyway for video while have a CF card in its slot

meaning using both slots

or should i only use CF for all usage in order to optimize photo & video performance?

What do you shoot? I'd never use the SD for video that sounds like inviting problems. Video demands higher speed memory. If you aren't a gunner and you take time shooting, getting faster cards are only going to help you for uploading to your computer. If that were my case then id stick with my 30mb/s cards. I will however get a fast card for shooting sports when i need to switch from my 1dm3 for lower light situations.


1DMIII | 5DIII March 22nd 2012 | 70-200 2.8L II | 85L II | 24L II | 40 F2.8

  
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judahchoi
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Apr 12, 2012 11:16 as a reply to  @ post 14219971 |  #48

What are the video capacities per gb on the MIII?




  
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montroyal
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Apr 12, 2012 11:19 |  #49

considering how slow the SD is,compared to CF, is it relevant to have and use the SD slot anyway ?


Canon 5D Mark III, Canon 24-70 2.8L, Canon 70-200 4L IS, Canon 17-40 4L, flash Canon 430EX II

  
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bosmankb
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Apr 12, 2012 13:24 |  #50

montroyal wrote in post #14253692 (external link)
considering how slow the SD is,compared to CF, is it relevant to have and use the SD slot anyway ?

Sd is great for jpeg backup and Eyfi cards, it adds value for sure if it were the high speed sd spec i would potentially consider using sd's over CF but I just feel way safer with the CF cards, they are super durable and the sd not so much.


1DMIII | 5DIII March 22nd 2012 | 70-200 2.8L II | 85L II | 24L II | 40 F2.8

  
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shimmishim
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Apr 14, 2012 01:30 |  #51

Try but when your buffer drops from 13 shots (writing raws to both) to 7 shots (writing raw to one and jpeg to the other) it's not worth it.

The SD is a huge bottleneck at this point. I hate it but I still use it since it's a good way to back up my pictures.


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https://photography-on-the.net/forum/showthre​ad.php?t=654812

  
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killagbear
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Apr 14, 2012 04:17 |  #52

Tom W wrote in post #14208881 (external link)
A little bit of data from my own 5D3....

Length of high-speed burst before the frame rate slows down:

Sandisk 45 mb/s - 13 shots RAW
Sandisk 60 mb/s - 16 shots RAW

This was with the CF card in the camera only. When using both SD and CF, and putting the JPG on SD, it slowed way down and the burst was cut to about 7 frames before dropping.

Sounds like then, md3 owners should just stick with CF cards huh? Unless you really need the backup and want to sacrifice the speed


Canon 5D3 | Sigma 50 1.4 | 70-200 2.8L IS II | 580 EXII

  
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Gregg.Siam
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Apr 14, 2012 06:49 as a reply to  @ killagbear's post |  #53

How many people really need 16 frames vs. 7?


5D MKIII | 24-105mm f/4 L| 50mm f/1.8 | 600EX-RT [FONT=Tahoma][COLOR=bl​ue][FONT="]|
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thefracas
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May 16, 2012 23:55 |  #54

thanks for this thread! v helpful!


| T H E F R A C A S | saying NO to vignetting in 2012! |

  
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stvideography
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Aug 17, 2012 08:05 |  #55

If you are planning on filming important events AVOID Sandisk Extreme 60 MB/s and Sandisk Extreme Pro 90 MB/s. I have 2 5D mk3's and get intermittent lock up problems that require me to remove the battery to unfreeze the camera. The problems occures in video mode, in silent mode and if you shoot a lot of pictures in a row. Many other people have been reporting this also. Canon has yet to address the problem with a firmware fix. Will be testing Lexar 1000x over the next few weeks and if I have any problems I'll post it here.




  
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MikeMSD
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Aug 17, 2012 10:14 |  #56

bosmankb wrote in post #14205510 (external link)
Here ya go the 5dm3 mem card tests
http://robgalbraith.co​m …i_page.asp?cid=​6007-12452 (external link)

I wonder how they do this test. I mean an image is transferred to the card, when you take a picture. But how do you make the camera transfer 22 photos, for instance? Do they just take a sequence of 22 photos or is there some other trick.

Also, I was planning to use the SD slot for a spare, as I have 64G SD cards, just in case my CF fills. But seeing what some have said about buffering, is it better to remove the SD card, until and unless needed. I mean, does inserting it but not using it actually slow performance of the CF?


5D3(gripped) | 7D(gripped) | G12 | 24-105 f4L IS USM | 70-200mm f2.8L IS II USM | 100-400mm f4-5.6L IS USM | 100mm f2.8L Macro IS USM | EF 1.4X II | EF 2.0EX III | 600EX-RT (qty. 2) | ST-E3-RT | GP-E2 | Non-Canon Gear: 2 Complete GoPro Hero 3 systems

  
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Canonswhitelensesrule
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Aug 17, 2012 14:40 |  #57

Lexar 32 GB 1000x UDMA 7 CF cards. On sale at B&H until the end of August! Great deal...esp on the two packs!!


Photographers do it in 1/1,000th of a second...but the memory lasts forever! ;)
"It's only cheating if you get caught!" - Al Bundy
People who THINK they know it all really annoy those of us who DO!

  
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Which CF Card for the 5D Mk III??
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