To fit in with the Russies:
try the Orion-15. It can be coded as the new 28mm Summaron F5.6. It is stellar, can be stopped down to F11 without a problem, no fringes, CA and the such of modern lenses. The lens does not require coding, even without, there is no noticeable color shift on the edges.
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I had the non-coupled Voigtlander 25 F4, very sharp, & pleasant. But . . . the early model often has a green cast that cannot be taken away. Easily seen when changing lenses: shift between images.