OK, foolishly, I'll bite. Name one operation applicable only to NEF format in Photoshop, save the labor of converting to a stable .tif or .png or .jpg. NEF is not fixed, but a shifting proprietary Nikon file format that even Nikon doesn't support universally. (The obverse of your Irfanview is quest is, if you have Photoshop, why do you flirt with primitive post-production software?)
Lastly, "all digital images" share the "post processing" characteristic of film images in darkroom. Snapshot or not. Finishing the image is something photographers have done since the 1820's. But dibble-dabble with archaic file formats in post-production is time lost. If you must have capacious and lossless files, get an FX sensor camera that captures to a universal format, such as .tif. Heavy-up your storage, and clear your calendar. (btw, those juicy iPad images for Apple? 8x10 transparency film; further example of how digital continues sold to the public in advertising via film image) Mr Turk, Ms Wilk, I'd sure like to hear you weigh in... --- Contrary to information posted about RAW, or NEF, not having advantages over jpeg, this is not true if one post-processes a digital image in a photo program such as Adobe Photoshop. (And all digital images except snapshots need post processing.) There are quite a few operations that can be done in Photoshop to the image only if it is in RAW (or similar) format. ************************************************************************* ** List info, subscription management, list rules, archives, privacy ** ** policy, calmness, a member map, and more at http://www.cguys.org/ ** *************************************************************************