I have a very large number of photos, nearly all *.jpg (commercially digitized film) but including *.pcd (a Kodak format not supported by some freeware programs).
I want to dedupe them without losing hyperdata (typically the date the film was digitized, as well as details of the scanner), I want to separate personally edited shots from the 'originals' (very few if any), and I want to retain full films for sequencing purposes to the extent possible. Typically, I expect to replace ‘newer’ with ‘older’, other things being equal, as I want whichever is closest to the original.
I am loaded for bear in photo programs, both commercial and freeware, I have assorted means of deduping, but I would welcome tips and hints for others who may have done the same thing. To pick an example, I have a freeware program called Clonespy, and if any Lounger is familiar with it, I would be interested in hearing about it.
I am just asking about deduping and retaining data (lossless, to the extent possible). For sorting, I will use Lightroom 4. (I also have Corel AfterShot Pro, which I bought just before the price of Lightroom plummeted.)
Cameras are now a lot smarter at getting the photo right in the first place. If I take decent shots then Lightroom will catalogue them and polish them for me, which makes Photoshop an extravagance (although I have that too).