[pure-silver] Re: Metering 135 vs 120

Whoops! Correction, my old Supermatics run slow at the higher speeds. Low speeds are pretty close. Beside cleaning there is a tension adjustment for the escapement. You may not want to undertake making this adjustment but the cleaning is easy and does not require disassembly to any great extent. Speed and Crown Graphics mostly used any of four shutters, all pretty good ones. Up to about 1940 the most common was the Compur, either the dial set or rim set type can be found depending on age. The other shutters were the Kodak Supermatic and Flash Supermatic and the Wollensak Graphex, which is the same as the Rapax. Whatever you think of Wollensak lenses their shutters were quite good. A few war time Graphics had Ilex shutters. These can be made to work as well as they ever did but are not as accurate as any of the above. 
   Most other 4x5 press cameras had the same shutters.

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Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx 
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