CompactFlash Card Questions

Discussion in 'Digital Discussion & Q&A' started by Rekd, Dec 29, 2009.

  1. Rekd

    Rekd TPF Noob!

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    I've got two cards for my 7D, a Sandisk Ultra CompactFlash card. It's 4 gigs and runs 30mb/sec. I spent about 60 bucks on it I think.

    I also recently bought a SanDisk Extreme III CompactFlash card that was less than half the price and also rated at 30mb/sec. I noticed when I shoot video on this card it stops every few seconds during playback (about every 5 or 10 seconds) I think because it's not writing fast enough.

    The first card I listed doesn't do that.

    I was looking at other cards and found a Lexar Professional UDMA Flash memory card - 16 GB CompactFlash Card for a little over a hundred bucks and the speed rating is not listed as mb/sec, it's listed as 300x. I want to get a bigger card but I want it to be fast enough so it doesn't have problems when I'm shooting video like the Extreme III card above.

    Is the Lexar card a good card for the 7D? And how fast is 300x??

    TYIA.
     
  2. usayit

    usayit No longer a newbie, moving up!

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    Where were the two CF cards purchased? Just asking since SanDisk CF cards have been widely counterfeited.
     
  3. Rekd

    Rekd TPF Noob!

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    The Extreme III card was bought at Radio Shack and I think the other was bought at Best Buy. I'll ask the wife, she got the other one.
     
  4. KmH

    KmH Helping photographers learn to fish Supporting Member

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    The base rate is 150 kB/s: So, 300 * 150 kB/s = 45 MB
     
  5. Shockey

    Shockey TPF Noob!

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    I am fairly sure the Lexar UDMA is the latest fastest version.
     

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