On Nov 7, 2006, at 7:29 AM, Mark Roberts wrote: > Here's a camera that used a similar shutter system: The Universal > Camera Corp mercury and Mercury II > http://www.cosmonet.org/camera/mercury_e.htm > http://rick_oleson.tripod.com/index-25.html > http://licm.org.uk/livingImage/Mercury2.html > etc. etc. > (http://www.google.com/search?hl=en&q=mercury+II+camera&btnG=Google > +Sear > ch) > > Rather than changing the speed of rotation, the Mercury varied the > size > of the slit between the two blades of the rotating shutter - I'm > pretty > sure it was derived from a motion picture camera shutter. > > It was a "slightly-more-than-half-frame" camera, getting 40 exposures > on a standard 24-exposure roll of film. I have a working Mercury II at > home. I'll have to run a roll of film through it some time.
Pretty Neat, Mark. I think I saw one of those once upon a time. It's a lot bulkier than the Olympus shutter ... and depending upon how small the slit could become, it would then lose X sync beyond a certain shutter timing. Godfrey -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net

