The only practical barrier is between 2GB and 4GB. Cameras that support
only the DOS FAT file system (FAT16) are limited to 2GB. Cameras that
support FAT32 can, theoretically, address into the terrabytes. I don't
recall the exact number (probably 512 x 2^32) but it's not important
since it's very much larger than any storage device you'll ever need on
a camera.
You won't find a specification for maximum addressable memory but you
will often find a specification for FAT32 on dpreview.com if the camera
supports it or, as my 5D manual says: "compatible with microdrive and
2GB or larger CF cards". Most cameras released in the last couple of
years do support it... at least for cameras that take CF cards. Secure
digital and XD cards have only recently broken through the 2GB barrier
so a randomly chosen camera using a non-CF technology may be less likely
to support FAT32. I assume that consumer digitals that don't support
raw mode are also less likely to support FAT32.
Chuck Norcutt
Arnab Banerjee wrote:
> I see 4GB memory cards in the market and 8GB cards being announced. However
> when I see specifications for digital cameras, they do not specify the max
> addressable memory (did I miss this?).
>
> Do they mention this detail anywhere? If not, how does one go about finding
> it? Or is the limit high enough so as not to bother at present?
>
>
>
> As usual I thought that this is the best place to get a quick and reliable
> answer.
>
>
>
> Thanks to all.
>
> Regards.
>
> Arnab.
>
>
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