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Thread started 06 May 2013 (Monday) 15:08
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CF versus SD on 5D mark III

 
lapino
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May 06, 2013 15:08 |  #1

Since the 5D3 supports both, suppose I use only one card, is there a reason to stick with CF? Price for high speeds compact flash cards is easily double than SD. Are CF cards more reliable or fast? Or is there any other reason to stick to CF ? Currently in need for some more storage, so need to decide to get Sd or Cf but I wont buy anything holding my camera back.


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icacphotography
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May 06, 2013 15:13 |  #2

CF cards are (if you're buying into pro level ones) available with much higher data transfer speeds than even the fastest SD cards on the market. Given the 5D3 supports both I'd set it up with a high speed CF card for recording RAW image and have it export JPEGS to an SD card that way you shoot both and if you get a shot that's perfect with your settings for JPEG it means less editing. It also makes it faster to go through the images and cull the crappy shots. Even non pro CF cards are smoking most class 10 SD cards though. I've got a 266x Kingston 16GB CF card that's about 30% faster than the fastest class 10 cards on the market at the moment and it was $17 on sale.


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Thomas ­ Campbell
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May 06, 2013 15:17 |  #3

The 5D3 is ridiculously slow when shooting to the SD card. It keeps up with all the rest when writing to a CF card.

Only reason to use the SD is if you rely on shooting to two cards (like I do.)


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Thndr_strck
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May 06, 2013 15:28 |  #4

There is an issue with the 5d3 not being able to utelise high speed SD cards. Kind of a dud idea on Canon's part. Have two card slots, but wait, if you want to use the SD cards we have to slow down the camera first...not cool. Which is why I stick to CF cards.


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Miki ­ G
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May 06, 2013 15:49 |  #5

In my experience SD cards seem to be more prone to file corruption. I haven't yet had a CF card to get corrupt.




  
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RTPVid
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May 06, 2013 16:56 |  #6

Miki G wrote in post #15903976 (external link)
In my experience SD cards seem to be more prone to file corruption. I haven't yet had a CF card to get corrupt.

What's the sample size of your experience?


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RTPVid
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May 06, 2013 16:59 as a reply to  @ RTPVid's post |  #7

Thomas Campbell wrote in post #15903832 (external link)
The 5D3 is ridiculously slow when shooting to the SD card. It keeps up with all the rest when writing to a CF card....

Thndr_strck wrote in post #15903899 (external link)
There is an issue with the 5d3 not being able to utelise high speed SD cards. Kind of a dud idea on Canon's part. Have two card slots, but wait, if you want to use the SD cards we have to slow down the camera first...not cool. Which is why I stick to CF cards.

Canon cheaped out on the SD card support in the 5DIII. If you need speed, you'll have to use CF only.


Tom

  
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Miki ­ G
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May 08, 2013 00:44 |  #8

RTPVid wrote in post #15904211 (external link)
What's the sample size of your experience?

I've used 4GB cards (SD), but have also used higher capacity cards. They are slower than CF & tend to get more errors & corrupt files. Nowadays, I only use CF cards.




  
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Sirrith
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May 08, 2013 01:07 |  #9

I use both, whichever happens to be on hand and has space. I have not had any issues at all with SD cards in my 5DIII, but then I don't tend to shoot on burst for several seconds continuously.

I have never had a corrupt file from SD cards from any camera. I only use Sandisk, 4-16GB, regular (blue), ultra and extreme.


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pdrober2
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May 08, 2013 21:49 |  #10

I use cf cards mostly, but have sd as backup. Cf definitely 'feels' faster.


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EmaginePixel
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May 08, 2013 22:30 |  #11

Here's an article on this topic. What do you think?

http://jeffcable.blogs​pot.com …-put-sd-card-in-your.html (external link)


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ed ­ rader
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May 09, 2013 00:47 |  #12

lapino wrote in post #15903801 (external link)
Since the 5D3 supports both, suppose I use only one card, is there a reason to stick with CF? Price for high speeds compact flash cards is easily double than SD. Are CF cards more reliable or fast? Or is there any other reason to stick to CF ? Currently in need for some more storage, so need to decide to get Sd or Cf but I wont buy anything holding my camera back.

CF cards are pretty cheap these days :D!


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lapino
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May 09, 2013 01:00 |  #13

Cheap? A fast Sandisk 16gb costs about 80-100 euro here. A 16gb sd around 30 euro.


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0.0f
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May 09, 2013 03:41 |  #14

Is the SD card slow even when your writing video to it?


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drdimento
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Sep 11, 2013 10:17 |  #15

Sirrith wrote in post #15909645 (external link)
. . . I have not had any issues at all with SD cards in my 5DIII, but then I don't tend to shoot on burst for several seconds continuously. . . . I have never had a corrupt file from SD cards from any camera. I only use Sandisk, 4-16GB, regular (blue), ultra and extreme.

I too don't burst rapid fire just fire sometimes as fast as I can click and since switching to SanDisk I've never had a file corruption issue. With other card manufacturers I've not only had file corruption but also complete card failure.

I will shoot the 5DM3 with SD cards because I have a drawer full of 32 GB SanDisk Extreme's from my former video business :-)




  
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CF versus SD on 5D mark III
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