sconner Posted March 17, 2018 Share #1 Â Posted March 17, 2018 Advertisement (gone after registration) Hey guys, I've recently acquired a lens that doesn't seem to focus properly at infinity. When you turn the focusing tab all the way to infinity pictures are coming out not completely sharp. I've checked it with LV and it reaches infinity just shy 2mm before lens marking. Is that normal? Link to post Share on other sites More sharing options...
Advertisement Posted March 17, 2018 Posted March 17, 2018 Hi sconner, Take a look here Summicron 35 ASPH doesn't focus at infinity?. I'm sure you'll find what you were looking for!
jdlaing Posted March 17, 2018 Share #2 Â Posted March 17, 2018 What lens? Link to post Share on other sites More sharing options...
sconner Posted March 17, 2018 Author Share #3 Â Posted March 17, 2018 What lens? That's 35mm Summicron ASPH first version (square hood) 1 Link to post Share on other sites More sharing options...
jdlaing Posted March 17, 2018 Share #4 Â Posted March 17, 2018 When you move the focus ring to the infinity stop and have to back off just a little bit to focus at infinity? Link to post Share on other sites More sharing options...
sconner Posted March 17, 2018 Author Share #5  Posted March 17, 2018 When you move the focus ring to the infinity stop and have to back off just a little bit to focus at infinity? That’s correct Link to post Share on other sites More sharing options...
jdlaing Posted March 17, 2018 Share #6  Posted March 17, 2018 That’s correct That’s normal in some lenses. Sometimes the stop is worn. Link to post Share on other sites More sharing options...
sconner Posted March 18, 2018 Author Share #7  Posted March 18, 2018 Advertisement (gone after registration) That’s normal in some lenses. Sometimes the stop is worn.What about having other lenses mounted on the camera then? Will they focus well on it? I've calibrated RF myself to perfectly fit summicron but I'm afraid that when I will get more lenses for it focus will be knackered Link to post Share on other sites More sharing options...
a.noctilux Posted March 18, 2018 Share #8  Posted March 18, 2018 What about having other lenses mounted on the camera then? Will they focus well on it? I've calibrated RF myself to perfectly fit summicron but I'm afraid that when I will get more lenses for it focus will be knackered  At your own risk, I may say. Calibrating the M Leica RF is something required some sophisticated hardware and some technical background.  Everyone can play with hex 2mm and full moon or far away pole, but...  As you have done it now two choices :  - leave it as is now and when you receive your second lens look if the calibrating is correct also for the latter - if the calibrating is off, send the camera to be calibrated at Leica  Even by then, when the camera calibrated by Leica come back, your lenses can be off also. Why the best thing with older lenses is to send them for calibrating to have peace of mind. Link to post Share on other sites More sharing options...
jdlaing Posted March 18, 2018 Share #9 Â Posted March 18, 2018 What about having other lenses mounted on the camera then? Will they focus well on it? I've calibrated RF myself to perfectly fit summicron but I'm afraid that when I will get more lenses for it focus will be knackered The only way to find out is mount another lens. Link to post Share on other sites More sharing options...
sconner Posted March 18, 2018 Author Share #10 Â Posted March 18, 2018 Thanks guys, I've got another idea how to "fix" the lens but it's pretty barbaric considering beauty of Leica lenses. I would like to avoid sending it to Germany since that could cost me a pretty penny - it would be my last bastion of defence. I think I will pay a visit to Richard Caplan tomorrow, test a few lenses and then try to understand what's going on. Â BTW. I have 7artisans 50/1.1 but since it's user adjustable it's not a great reference point I think. Link to post Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now