Archived posting to the Leica Users Group, 2000/04/26
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The highest flash sync speed is decided in a focal plane shutter equipped camera by the width of the film gate and the speed of the shutter curtains. In the Leica M the shutter is a large, very low stressed mechanism which will out last most amateur photographers and their heirs; but, purrs along at a leisurely rate by modern standards. Any speeds higher than 1/50 require the second curtain to be released before the first curtain is fully open and thus not allowing the very brief duration of electronic flash to expose the full width of the film. You could use flash bulbs of which certain types allow a sync speed of up to 1/500 as their burn duration is quite long by electronic standards. Another technique is to place the subject in a part of image that will be exposed by the flash at higher speeds. Almost half of the negative is uncovered at 1/125. Naturally this technique would only lend itself to certain types of fill flash use. John Collier > From: "Jerry S. Justianto" <jsjm6@cbn.net.id> > > From a non technical person point of view, range finder camera should have > faster flash sync speed since it has less mechanical and no mirror between > the lense and the film. > > But why M6 only has 1/50 flash sync speed? > > JSJ >