LM> But something else strikes me as rather interesting: is the difference in LM> RAW file size between *istD and D70 really that big? Why would that be so, LM> considering both cameras store basically the same amount of image LM> information? Or don't they? If I remember correctly: First, Ist D stores it as 16-bit uncompressed file, even though there are only 12 bits from the sensor. Second, D70 compresses the raw 12-bit file. Third, D70's compression is not lossless, it's "visually lossless", thus some insignificant parts are lost. I haven't had a problem with it so far, even under pretty extreme lighting.
The average raw file from D70 is 5.5-6 MB... Frantisek
