From: James Dugger <[email protected]> > GIF and PNG are as others have mentioned more for internet uses where 256 > colors or web corrected colors are adequate.
PNG is capable of storing 8 bits/channel and 4 channels, giving it a much larger than 256-color palette. > That said a best practice is always to shoot in raw. Raw saves all of the > shot information (EXIF data) in the image for further manipulation later. > If you shoot in jpeg this info not available to you. Er... the relatively cheap digicam I bought in 2002 saved date/time, effective f-stop, shutter speed, effective ISO, and various other things in an EXIF block within the JPEGs it produced. The slightly better digicam I have now does the same thing, and it can't produce anything but JPEGs. Did you mean "raw format has no JPEG artifacts and can have more than 8 bits per channel"? Because that's true, and can have advantages if you're doing a lot of editing in post. Especially if you're shooting where the lighting is terrible/inconsistent. > I would consider the shooting and storing of images in raw the > equivalent to [negatives in glass]. This is also true. It just depends on how much disk space you'd like to devote to storing stuff. Since I'm not a professional photographer, I find that 3500x2600 JPEGs at 90+ quality (about 2.2M per JPEG) seem to work great for what I need. > If you need a lossless compressible file format save a copy as a > TIFF. Or PNG. -- Matt G / Dances With Crows The Crow202 Blog: http://crow202.org/wordpress/ There is no Darkness in Eternity/But only Light too dim for us to see --------------------------------------------------- PLUG-discuss mailing list - [email protected] To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
