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DPChallenge Forums >> Hardware and Software >> CF Card Speed 400X vs 600X for Canon 7D
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12/12/2011 09:36:15 PM · #1
This is one of those situations where I would like to use a poll feature actually, but what speed do you use for your Canon 7D (or other camera too) and why?

I'm trying to decide between a 16GB 400X or an 8GB 600X and retail for about the same. I will probably have some 1080p video each time I fill the card I think. What are some of the real life results you've seen.
12/12/2011 10:06:00 PM · #2
what does the manual say to use?
12/12/2011 10:20:05 PM · #3
I use 400x with no issues in the 7D for video.... I tried some older 233x and they stalled sometimes but they were mostly fine also. I use the Transcend 16Gb & 32Gb both 400x as the value is better then the big name brands.
12/12/2011 10:33:56 PM · #4
Originally posted by mike_311:

what does the manual say to use?


In between having sent my defective one back and getting my replacement unfortunately, I just thought I'd order one so that when it came back I'd have a good enough card. I used a 133X and it struggled a bit. I really just want to use the 400X if it will handle the 1080p just fine. I was just curious to see if the 600X has a significant and noticeable difference against the 400X.
12/13/2011 07:42:10 AM · #5
400x or 600x is not a very good indicator of speed as slower "x" cards often outperform models with a higher listed rating (sometimes even from the same manufacturer). Larger capacity cards are typically slower than smaller capacity versions with the same rating, too. Any UDMA CF card- and probably either of the ones you're looking at- will be more than fast enough for video. Here's a 16GB Sandisk Extreme for $49 shipped.
12/13/2011 08:10:14 AM · #6
B and H also has a good deal on the Sandisk 16GB CF cards.. I bought one to use in my 7D and so far it seems to handle the video recording just fine. I haven't taken any videos over 4-5 minutes yet so I can't speak for extended use.

Link to B&H 16 GB card deal

//www.bhphotovideo.com/c/buy/CompactFlash/ci/7857/N/4232859243

Originally posted by scalvert:

400x or 600x is not a very good indicator of speed as slower "x" cards often outperform models with a higher listed rating (sometimes even from the same manufacturer). Larger capacity cards are typically slower than smaller capacity versions with the same rating, too. Any UDMA CF card- and probably either of the ones you're looking at- will be more than fast enough for video. Here's a 16GB Sandisk Extreme for $49 shipped.
12/13/2011 12:41:38 PM · #7
I use Lexar Pro 233x 16gb UDMA cards and they work just fine with my 7D

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