Jeff_S
Member
Moving the rear module in decreases the focal length. Lenses with lower focal length do not have to travel as far throughout the focus range as those with a longer range. The Leica RF expects a lens to travel 0.1mm less when going from 3ft to infinity than a Zeiss/FSU RF.
It looks as good as any of mine did. Adjust the main shim to optimize focus for a limited range. I went for 2m to 5m. Everything else, use F4.
It looks as good as any of mine did. Adjust the main shim to optimize focus for a limited range. I went for 2m to 5m. Everything else, use F4.
Jeff_S
Member
Thank you for the reply. The high resolution scans do show a little better than the jpegs sized for the web. But I imagine that is the case for virtually all of the images posted here (and elsewhere).
I can't define it but the lens does have a look that is different than say my EOS lenses. Maybe it is a little softness, just not sure.
One other question though, it seems to focus beyond infinity. In other words, if I stop at infinity as shown by the rangefinder my image is a little sharper than if I go to the lens stop which seems to be a bit beyond. Is that something to be concerned about?
I can't define it but the lens does have a look that is different than say my EOS lenses. Maybe it is a little softness, just not sure.
One other question though, it seems to focus beyond infinity. In other words, if I stop at infinity as shown by the rangefinder my image is a little sharper than if I go to the lens stop which seems to be a bit beyond. Is that something to be concerned about?
Do not worry about it moving past infinity physically, as long as the RF and actual focus agree.
This means you have some room to move the optics out, optimize for close focus, and then move to the Physical Stop for better infinity. That is what I do.
This means you have some room to move the optics out, optimize for close focus, and then move to the Physical Stop for better infinity. That is what I do.