Originally Posted by
Mark Sampson
There must be some variation in those shutters. I have in front of me a 127/4.7 Ektar from 1945. It's in a black 'Graphic' #2 Flash Supermatic. Its top speed is 1/400. It has a bipost flash connector and next to that, on the face of the shutter, is an arc-shaped window with delay settings for bulb flash. A set-screw holds the settings in place. There are only two settings, '5' and '20'; which must refer to milliseconds delay for the bulbs. Oddly there's no 'X' setting for electronic flash.
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