People sometimes write and ask me how I test a given Leica lens + rangefinder combination for focus accuracy.
Well, for near distances I trust the good people at Vaseline.
On a related note, I dislike the grunt work of testing film equipment. The arduous process of developing and scanning film seems even more arduous when the test results are off. That is why I rarely sell gear that I know is working well (ha, ha…).
Fortunately, this time everything looks good.
—Peter.
↑ Leica M3, Leica 50mm Summilux ASPH, Kodak Tri-X 400, and Plustek 8200i.
Prosophos 
For a moment there I thought you were going to say that you put Vaseline on the lens for some reason. 😛 I’m glad to know that you don’t lubricate the RF with it.
LOL, no… no Vaseline on the lens.
Karim, exactly my thoughts 😀… Peter is always good for a surprise!
Ha ha, I would never do that to a 50 ‘lux!
Oh look.
A Summilux 50 ASPH.
😶
LOL. Yes.
Curious if you will try the new Voigt 40/1.2. Seems right up your alley.
You know me well! It certainly has crossed my mind to try it (there’s already a special edition version of it that I looked at), but so far I haven’t been tempted. Anyway, at this point, it would be redundant with my current set-up (50 ‘lux, 35 ‘cron).
I am surprised you chose to ditch the DR Summicron…you seemed to have a “thing” with it.
I most certainly did not “ditch” it! Still have it… it’s the 50 ‘lux ASPH, if anything, that has a tenuous standing in my lens line-up.