https://petapixel.com/2016/05/19/four-cheap-soviet-lenses-worth-hunting-ebay/
4 Cheap Soviet Lenses Worth Hunting Down on eBay | PetaPixel
May 20, 2016 - It may not be the first place that comes to mind, but the Soviet Union is a great place to start if you're looking for a good quality piece of glass on
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https://www.hartblei.com/
HARTBLEI - Tilt, shift, and tilt-shift lenses and adapters. Soviet and Germany vintage cameras,...
HARTBLEI - Tilt, shift, and tilt-shift lenses and adapters. Soviet and Germany vintage cameras, lenses and accessories.
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