rec.photo.equipment.medium-format - join
Medium format cameras and lenses.
Low activity, 342 subscribers, Usenet

rec.photo.marketplace.35mm - join
Trading 35mm equipment.
Low activity, 178 subscribers, Usenet

rec.photo.digital.slr-systems - join
Digital SLR (single lens reflex) camera systems.
High activity, 1952 subscribers, Usenet