This is the genuine 55mm L39 filter made by Contax. It is originally for the 21mm f2.8 Biogon, but it would be an excellent filter for any 55mm threaded lens.
It is in mint- condition and works perfectly. The glass is clean and scratch-free with no haze, fungus, nor other issues.
![Contax 55mm L39 (UV) MC Filter [MINT-] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/ContaxFilter-1_ff3fcbfc-4185-43c8-9230-3bf9335d4c34_2048x.jpg?v=1736535990)
![Contax 55mm L39 (UV) MC Filter [MINT-] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/ContaxFilter-2_89b55026-da1b-4612-8a2d-a2c8f2d176ec_2048x.jpg?v=1736535990)
![Contax 55mm L39 (UV) MC Filter [MINT-] - Victory Camera](http://www.victorycamera.com/cdn/shop/files/ContaxFilter-3_593f4a38-252b-4b8b-af0b-7dab8699c920_2048x.jpg?v=1736535990)
