I took a trip to photography mecca last week (B&H) and picked up a few rolls of Efke "Aurora" 820, one 35mm and 2 120 to play with. So someone give me a crash course please. How are you shooting/developing these? There is a lot of "data" on the web, but it seems most of what I see relating to exposure never references development. I've seen suggestions to rate the film anywhere from 1.5 ISO to 25 ISO with an R72 filter. That's 5 stops difference, and ??? how development affects that. I have D76, HC-110, Diafine, and Perceptol in stock. I'm not particularly concerned with exposure time as long as it isn't into minutes. I'd love to hear some of your experiences with shooting and developing this film. At $13/roll I'd like to minimize the experiments!