Originally Posted by himself
everything you could possibly need to know
except that that the SLR 680/690 are the same type as the sx-70 but use the 600 type film not the sx-70 types, well, that info is on there, but in a different section.
Thanks, now is the reading time!
My flickr : New Zealand, Jupiter J3, 4x5", Rolleiflex T, Mamiya 6 shots