thanks sanders, for the bit about the 10 bladed iris etc,... I have an old automat circa '49 with tessar,is it the same iris configuration? 2.8c The main thing I'd like to do now, since I have a couple rollei's is learn how to photograph with them. Little things trip me up with the rolleiflex. First of all, sometimes I forget to advance the film. Usually this is when I make an exposure where I want to remain inconspicious. I fire of the shutter and then try not to even think about the camera swinging aroung my neck. The last thing I want when trying to be slick is someone catching me at it, so no film advance after the duty to alarm anyone that a picture may or may not result from my movements. Seems too often that these pictures I make, trying to be sneaky betray themselves. They always look forced, contrived, pretentious,... and they it happens, something lines up, I'll find the camera jump into action, into the moment and since the shutter isn't ready, no photograph. Lost to history. So maybe the key is to not think about being sneaky with a rollei. But rather, concentrait efforts toward naturalism, become one with the machine as it were. Obviously The first rollei I fell in love with, had to do with the way the camera looked, smelled and handled. Basically I liked it because who ever used it before I did, put a lot of miles on it. If that camera could talk! So now with my almost brand new version of the same issue camera. Is there a significance of serial numbers numerology and the psychic aspects of divination,....