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Compression and image capacity

stappy

Alexandria, US
225 posts

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"RE: Compression and image capacity"

stappy Gold Member Nikonian since 06th Aug 2009
Sun 24-Feb-13 10:03 PM

Hi Scott,

Can never be sure what Nikon was thinking but the following would be my guess.

The numbers they are giving for the lossless compressed files is just a conservative specification. Note they give single photo file sizes which they list in the footnotes as approximate. For any given compression algorithm there is no way to guarantee the amount of savings that you will get for an unknown image. In act, it is possible for a compression algorithm to produce a larger file that the original. Of course, any decent algorithm would check this and just write the original uncompressed in that case. In any event, if you need to take x number of shots, nikon is just giving you the most conservative number of cards you need to have.


Brian

A general, generic topic Compression and image capacity [View all] , ScottChapin Moderator Awarded for his high level skills in various areas, including Aviation and Birds Photography , Sun 24-Feb-13 07:58 PM
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