This is one of the best of the Tessar formula that you can buy. Great optics, the mechanics of the mount do not do it justice. It's also one of the cheapest Leica mount lenses that you can buy, typically under $25 or so. Most are made in the early 90s. This lens uses low-dispersion glass, and the color rendition and overall sharpness are among the best that you will find.
But... in general, be prepared to do a CLA of the focus mount, use a heavy grease for the mechanism that holds the mount in place. Also be prepared to Shim the lens for the Leica. So that's what I did with this one today...
Focus was close, but adding 0.1mm to the main shim did the trick. Close-up shots are shown, I did a test at infinity: was perfectly usable. F2.8 is forgiving.
L1016456 by fiftyonepointsix, on Flickr
L1016454 by fiftyonepointsix, on Flickr
L1016458 by fiftyonepointsix, on Flickr
L1016459 by fiftyonepointsix, on Flickr
But... in general, be prepared to do a CLA of the focus mount, use a heavy grease for the mechanism that holds the mount in place. Also be prepared to Shim the lens for the Leica. So that's what I did with this one today...
Focus was close, but adding 0.1mm to the main shim did the trick. Close-up shots are shown, I did a test at infinity: was perfectly usable. F2.8 is forgiving.
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