This lens is one of the lowest priced lenses in Leica mount that you can buy. As with many Russian lenses, the design changed through the years and quality control varied. There can be a lot of performance differences between samples. In my opinion, the Russian lenses from the 1950s had better quality control and tighter mechanical tolerances. This can be offset be decades of use and abuse. In the case of this lens: nothing that two hours of acetone, alcohol, detergent, silver polish, Q-Tips, Ultrasonic cleaner, complete teardown and relube, and final adjustment did not take care of. Also added is a rear light baffle that was added to the design of the I-61.
Industar-26m, CLA and Test by fiftyonepointsix, on Flickr
Industar-26m, CLA and Test by fiftyonepointsix, on Flickr
Industar-26m #2, CLA and Test by fiftyonepointsix, on Flickr
Boring test Shots to test close-up, elements aligned, and infinity.
Industar-26m #2, CLA and Test by fiftyonepointsix, on Flickr
Industar-26m #2, CLA and Test by fiftyonepointsix, on Flickr
Industar-26m #2, CLA and Test by fiftyonepointsix, on Flickr
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Boring test Shots to test close-up, elements aligned, and infinity.
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