I also shot motor racing (mainly sport car road racing - Cam Am, Trans Am) alot in the late 60's early 70's with my Spotmatic and a 300mm lens. When I was shooting on the course I shot the 300 about 99.9 % of the time. Switching lenses was not an issue.
Kenneth Waller ----- Original Message ----- From: <[EMAIL PROTECTED]> Subject: RE: Well anybody know in what waysm42screwmountingsystemissuperiortoKmounting system? >I shot motorsports with screwmount lenses for many years, and I changed >lenses frequently, sometimes as much as thirty or forty times during an >afternoon of shooting. I remember watching the NIkon shooters and thinking >how much faster they were on the lens swap. With the screwmount lens, I'd >twist out the old one, chich required five or six turns if memory serves >me. Then swapping in the new one, I really had to look to align it before >turning. Then, I cold never be sure that the threads actally caught on the >first turn, so I had to be careful not to release it before going for the >second turn. It was never easy, and I always envied the bayonet mount guys. > Paul -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net

