--- Henning Wulff <[EMAIL PROTECTED]> wrote:
> These are only very general guides, as the actual
> numbers depend
> hugely on compression ratios and subject matter.
> Campression settings
> are determined by Camera manufacturers, not Sandisk.
Very true, however if the average size is known, I
would think the actual compression may be pointless
since that average can serve as a rough guide. Just
look for your camera's average size - regardless of
make, picture format, compression, et al, and get a
rough estimate.
> Besides, it doesn't mention RAW, which is another
> whole topic. Nikon
Same thing: regardless of the *format* of the file, if
the final size is averaged out, it is not relevant as
far as a rough estimate is concerned. Of course there
*will* be variations in real life (e.g. due to the
reasons you have pointed out.) hence "how many" will
never be more definitive than - for example - either
your or mine or the Sandisk PDF's estimate.
On another point, the capacity of a card may go up and
down, also depending on the default cluster size used
by the camera when formatting the card (eg 4K, 16K,
32K etc) but that may not amount to much on just 1Gig
cards. Some space is also lost to the file system
(maintianing two copies of FAT with placeholders for
pointers to each cluster, losing a few clusters to
maintian main/subfolder directories' content, any
system files kept by the camera etc.)
- Harman
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