Archived posting to the Leica Users Group, 1998/04/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Leikon35 wrote: > Those of you that are seriously into fine tuning guns will know immediately > what I am talking about but for the rest of you Leicaphiles, bare with me. > > All early Leica cameras had problems in matching a lens to its body, since > the actual focal lengths varied ie (+ or - 1/10mm) and the bottom shells, not > being die cast also varied. The solution to this, in the late '20s & early > '30s > was to have a PEEP HOLE built into the back of the camera where a loupe > was attached ( quite similar to what Harold has just done) but since they > were focusing on the aerial image rather than a ground glass, it was more > accurate. After adjustments by adding shims ( .001/mm ) to the lens flange > the peep hole was plugged and the pressure plate revolved to make it light > tight. Thank you for providing an answer to something that has been puzzling me: I have a II converted from a I; there is clearly a plugged hole that is visible on the inside of the body, through the pressure plate - it directly centres with the focal axis. Peterg