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Showing results for tags 'filesize'.
I have the dubious task next week of explaining image formats (jpg, tiff, raw) to a group of non-photographers (OK don't ask!). So I did some prep, and came unstuck in the detail. I'd always assumed that for raw files a rule of thumb that the pixel dimensions (width by height) times 3 (red, green, blue) would give a reasonable approximation to the filesize. But this simply isn't true. For example a 5472 by 3448 image (Canon Raw (Cr2)) only occupies 23,300 Kbytes on disk. I've played around with 8, 12,14 pixel depth, and understand that 1K is 1024 bytes, but