Archived posting to the Leica Users Group, 2003/02/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I could be wrong about this, but if I remember the discussions held around the photographers' lounge at the Time/Life Building in the early sixties this is the scuttlebutt. The double stroke was used initially because early tests of a single stroke advance moved the film so quickly out of the canisters that in cold weather static emissions could streak the film. Thus, the double stroke was utilized to slow the film advance and guarantee against static streaking. I would have gleaned this information from a discussion I overheard between Brad Morse and Marty Forscher circa 1963 or '64. I do not remember Brad or Marty address why one would slow the advance through two strokes rather than simple gearing, but if it made sense to Forscher, who was a true mechanical genius, then one must presume that it made perfect sense. Again, this is apocrypha, and I remain seated so that I can stand corrected immediately when called to task. Buzz Hausner - -----Original Message----- From: owner-leica-users@mejac.palo-alto.ca.us [mailto:owner-leica-users@mejac.palo-alto.ca.us] On Behalf Of leirex@access4less.net Sent: Monday, February 24, 2003 1:07 PM To: leica-users@mejac.palo-alto.ca.us Subject: Re: [Leica] Question: Single Stroke vs. Double Stroke M3 Then, what is the advantage of SS over DS and the advantage of DS over SS? David - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html