The best format to shoot in - provided your camera gives you the option - is RAW. That has been called a 'digital negative'. JPEG is a 'lossy' format which means that each time you open it you can loose some of the digital information. That does not ...
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Anything Out There That Will Scan "Large Format" Will Be VERY Expensive. If You Can Live With Just Medium Format Scans, There Are A Few "Reasonably" Priced Models. If You MUST Scan Large Format I Would Suggest You Get Some Advice From Someplace That ...