On Sunday, April 3, 2005, at 01:51 PM, Ardeshir Mehta wrote: >> [...] As an after thought It has always been interesting to me that >> none of the traditional 35mm camera manufacturers forsaw the great >> impact that SLRs would have. > > Wasn't the Contarex one of the very first, if not THE very first, 35mm > SLR with pentaprism finder, rapid return mirror, interchangeable lenses > and automatic diaphragm closing-and-opening - the things we all expect > in a fully functional SLR? > The Contarex was a weird design. While it did have instant return mirror, the lens diaphragm did not reopen until the camera was cocked. I believe I remember correctly that the Gamma Duflex had lenses with diaphragms that reopened right after the exposure was made, and was the first SLR to have this. Bob