Does anyone know how they align a typical Leica rangefinder? Are special tools or collimators used to verify horizontal and vertical alignment?
Reason for the questions, I have an M2 that it was obvious the vertical alignment was off-not much but enough to make it obvious. Youxin Ye was good enough to walk me through what tool to use(a 2mm Wiha screwdriver) after uncovering the chrome screw between the finders and tweaking the small one inside. I just looked at some simple objects including some text and tweaked to the left-wrong way. I needed to go the other way and after a couple of very slight right turns the text sharpened up unlike before.
I'm just curious if the eyeballing things and tweaking the screw is sufficient or is it more complicated than that. How do I know, in short, if it's spot on or still a tad off?
Reason for the questions, I have an M2 that it was obvious the vertical alignment was off-not much but enough to make it obvious. Youxin Ye was good enough to walk me through what tool to use(a 2mm Wiha screwdriver) after uncovering the chrome screw between the finders and tweaking the small one inside. I just looked at some simple objects including some text and tweaked to the left-wrong way. I needed to go the other way and after a couple of very slight right turns the text sharpened up unlike before.
I'm just curious if the eyeballing things and tweaking the screw is sufficient or is it more complicated than that. How do I know, in short, if it's spot on or still a tad off?