Archived posting to the Leica Users Group, 2000/07/31
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]John, I had a similar miss-alignment problem with my 15mm. This post from the archives worked like a charm for me. Josh Orkin, Redwood City CA >Archived posting to the Leica Users Group, 2000/04/10 follows: >[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic >>Index] [Home] [Search] >--------------------------------------------------------------------------- - ----- >Subject: [Leica] Voigtlander lens alignment process >From: "Michael Darnton" <mdarnton@hotmail.com> >Date: Mon, 10 Apr 2000 17:52:16 PDT >--------------------------------------------------------------------------- - ----- >For those who've been irritated by their 15mm lens' misalignment relative to >the camera body--if you're mechanically inclined, unscrew the four screws on >the back of the mount. Underneath you'll find each screw can actually be >screwed into one of a series of screwholes in the lens body. Turning the >mount relative to it's previous position and using a different set of screws >allows you to realign the lens in about 4mm increments. Of course if you use >multiple cameras/adapters and the alignment is different with each, this >isn't gonna help. . . . >The 35mm has the same situation, but I haven't explored whether this messes >with the rangefinder calibration or not. In theory, it should a little, but >I don't think this is the major calibration method. When you dig in you'll >also notice four screws running in slots that would seem to make possible am >even finer adjustment of the alignment. Don't mess with them--I suspect they >really will change the rangefinder settings! >If you mess up, you're on your own--don't blame me! :-) >- --Michael Darnton > -----Original Message----- > From: owner-leica-users@mejac.palo-alto.ca.us > [mailto:owner-leica-users@mejac.palo-alto.ca.us]On Behalf Of John Coan > Sent: Sunday, July 30, 2000 12:41 AM > To: leica-users@mejac.palo-alto.ca.us > Subject: [Leica] Using screw to M adaptor ring ? Need Help > > > I recently acquired a used Voigtlaender 15mm screw mount, and purchased > a Voigtlaender adapter ring. I have a few questions that I hope the > group can help me out with. > > 1. The instructions say put the ring on the M body and lock it in, then > screw in the lens. I always figured I would leave the ring on the lens, > and bayonet the lens on and off like a normal lens. Any problem with > that? > > 2. When screwed all the way in, the focus indicator mark which should > be centered at the top is a few degrees to the left (when looking > down). Sort of like it is screwed in a little bit too much. Will this > have any practical effect on focus? I've never owned a screw mount > Leica and do not know how precisely the threads are cut to make the lens > line up perfectly when screwed in tightly. On my combo, the lens isn't > tight unless screwed in a little past the mark. > > Thanks in advance for the collective wisdom of the group. > > John >