Sandisk Extreme speeds

Discussion in 'Australia Photography' started by clandestin_écureuil, Jun 22, 2008.

  1. Has anyone experienced a notable difference in speed between Extreme III
    and Extreme IV cards?

    I bought some of the IV cards a couple of days ago, and was expecting to
    see a notable difference in save speed when shooting raw, but really can't
    notice much difference at all. Not without resorting to a stopwatch that
    is. On their website they say that the IVs were "up to" 40MB/sec. They
    don't seem to much better than the IIIs at 20MB/sec. I guess that "up to"
    is more advertising blurb than reality.

    Secret Squirrel
     
    clandestin_écureuil, Jun 22, 2008
    #1
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  2. clandestin_écureuil

    Phred Guest

    No, no no... It's real. You just have to hold your mouth right and
    wait for a north wind, then you'll get that 40MB/sec. Otherwise I'm
    afraid you'll have to make do with 21.

    [But console yourself with the thought that at least the thing works.
    Which is a *considerable* advance on the two Exigo thumb drives I
    bought from Citysoft a year or so ago. They nearly caused me the loss
    of a week's worth of travel photos. And would have, except my
    inherent paranoia ensured I had also copied them to a couple of CDRs
    as well as leaving a copy of them all on a friend's PC at the time.]

    Cheers, Phred.
     
    Phred, Jun 22, 2008
    #2
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  3. clandestin_écureuil

    Pete D Guest

    CF or SD?

    SD are SDHC if they are bigger than 2Gb and read speed will be around double
    the write speed.
     
    Pete D, Jun 22, 2008
    #3
  4. clandestin_écureuil

    Doug Jewell Guest

    Firstly, is your camera capable of those sorts of speeds?
    Secondly, are they genuine IV cards, or "ebay specials" (ie
    whatever shit they can get cheap and with copied IV logos
    stuck on it)?
     
    Doug Jewell, Jun 23, 2008
    #4
  5. I use two DSLR camera systems, Canon and Nikon, plus I always carry a
    Panasonic FZ50 with me as a general purpose camera. One of the many
    advantages of being a girl is the expectation that you will carry half your
    possessions with you in a large shoulder bag. I use a nice leather video
    kitbag as a carryall. Even I don't know what is lurking in the very bottom
    of that bag.

    The Pansonic is SD only, not Compact Flash like the others, but using it
    with SanDisk Extreme III SDs it seems as fast in practice at saving a 20+
    meg raw file as the others with the SanDisk Extreme IV CompactDisk cards.

    And yes, they are genuine SanDisk Extreme cards, purchased through a major
    photographic supplier.

    I went back to the store yesterday and they tell me that in their own tests
    the card doesn't improve camera performance by very much, but it transfers
    data much more quickly. In future I will be sticking to the Extreme IIIs,
    the extra cost isn't justifiable.

    Secret Squirrel
     
    clandestin_écureuil, Jun 25, 2008
    #5
  6. CF in this case, in fact I don't think they make SD in Extreme IV yet. I
    was using SDHC as soon as they came out then I moved up to Extreme II's
    then Extreme IIIs. There was a noticeable difference in frame rate with
    both those upgrades but none with this last one. I think that until I have
    a camera that makes real use of any further speed increases I'll stick to
    the Extreme IIIs.

    Secret Squirrel
     
    clandestin_écureuil, Jun 25, 2008
    #6
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