Originally Posted by
Crypto
personally, I would save in a format such as TIFF. This is an uncompressed format and it's format can be used on any PC/MAC. By saving proprietary formats such as PSP, you limit its use to PC's that have the software installed, unless converted to a more common format. Also, what if you change software down the road?
I would only save in this proprietary format if I have done a lot of post processing or have created several layers and may return to it often to keep making changes or even undo changes.
On the JPEG loss issue, You have to save the same JPEG many many times to see real degredation in image quality. However, it does depend on how much postprocessing that was done and the quality of the original image.
Those that have the option to shoot in the RAW (albeit, proprietary as well) format, In my opinion, this is the best Archival solution. Convert to JPEG's when you want to use them. Most RAW processing software never alters the original RAW file. They are much smaller than TIFF's or proprietary files (PSP) and you're guaranteed the highest quality image your camera can produce.
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