Zeiss-Ikon Icarex 35 S (35S) TM M42 S.N. R-82778 Carl Zeiss Skoparex 35mm f/3.4 M42 S.N. 7357484 Carl Zeiss Tessar 50mm f/2.8 M42 S.N. 7302396 Carl Zeiss Ultron 50mm f/1.8 M42 S.N. 7254834 However, I tested it on a Sony A7R III with the M42>Sony FE adapter and the optical performance seems unaffected, with good sharpness and contrast.
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