| A photo management program like Lightroom, or ACDSee, or probably any number of others, would allow you do this easily enough. Heck, I'll bet even Picasa or Windows Photo Gallery could do it. But these sort of programs also make it kind of unnecessary to think in those terms. Given that they can, with a single click, show you all your ISO 100 pictures regardless of where they live on your drive, why bother moving them around? One of the most important features of any decent photo management programs is that you don't *have* to move your files around physically in order to group them logically - the program can create or generate "virtual" collections just as easily. |