Fujifilm xD-Picture Card media

Discussion in 'Fuji' started by [email protected], Jun 29, 2004.

  1. Hi,

    I recently bought a 64Mb card for a FinePix A210. The card formatted to
    the stated 81 available frames for HiRes, but I found that during use
    some frames would be dropped e.g. after taking the first shot the frame
    count drops from 81 to 79. The card shows full after taking 75 pictures,
    suggesting that of 3 shots taken, 6 frames have been used.

    The 16Mb card that came with the camera doesn't show this behavior.

    Has anyone had similar experiences?

    Thanks,
     
    [email protected], Jun 29, 2004
    #1
    1. Advertisements

  2. t@k

    Ken Weitzel Guest


    Hi...

    The camera is "guesstimating" the number of pictures
    remaining based on it's average compression level, so
    will correct itself as the card begins to fill.

    To prove this to yourself, as a test take a dozen pictures
    of a blank wall, see how many remain. Erase them, then
    take a dozen pics of multi colored dense flowers and
    see how many remain.

    Take care.

    Ken
     
    Ken Weitzel, Jun 29, 2004
    #2
    1. Advertisements

  3. Hi Ken Weitzel, you said...
    Thanks for your reply which makes perfect sense in theory, but in
    practice...

    Remaining frames after 12 shots of blank wall =67.
    Remaining frames after 12 shots of busy scene =68!!!

    Remaining frames always drops from 81 to 79 after the first shot, no
    matter what the scene. Then random other shots will take 2 frames. I
    also tried the same test with the 16Mb card, and the remaining frames =7
    (from 19) in both instances. The 16Mb card has never displayed the above
    behavior.

    Thanks,
     
    [email protected], Jun 30, 2004
    #3
  4. t@k

    A.M. Guest

    I wonder whether you might be seeing the effect of numerical roundoff
    errors - The 'frames remaining' must always display as an integer even
    though the actual answer is probably has decimal places.
     
    A.M., Jun 30, 2004
    #4
  5. t@k

    Helge Olsen Guest

    This is because of rounding errors. The 16 mb card doesn't allow for enough
    pictures for this effect to show. A rule of thumb is to always subtract at
    least one from the amount shown. Not too hard, not unique to xD cards or
    Fuji cameras :)

    /Helge
     
    Helge Olsen, Jun 30, 2004
    #5
  6. t@k

    R Guest

    The image count is an approximate, best use figure. Each image stores
    different amounts of information. If you look at several images in your PS
    or PSP software you will see that although the dimensions are the same, the
    file size differs - according to each shot.
    If you want to check the card, simply take a shot of something blank and
    keep taking it, if the count drops by the same number each time, the cards
    fine. But if it drops by different numbers then it's a problem.
    Hope this helps?
     
    R, Jul 6, 2004
    #6
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.