OK . . . I know that I could make some guesses or do a "snip test". I just picked up a used Diana camera. Inside I found a fully exposed roll of 120 film. The tape wrap on the roll says "Panchromatic Film Made in Germany". I have no idea how the roll is!<p><p>Anyone want to make their own guesses on processing? My two most common developers are TMax and PMK. My first guess is to use the TMax and just pick the average of all processing times for a given temp. This developer doesn't seem to vary much in processing times.