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C4 Modified Lenses

C4 Modified 50mm f/2.8 Lens
LEFT: Unmodified Argus C4 with the standard 50 mm Argus Cintar f/2.8 lens.
RIGHT: Modified Argus C4 with Lithagon 35mm f/3.5 lens.  Knob and latch shown to the right of the lens indicates a C4 has been modified for Lithagon lenses.  Modified C4s could also accept modified Cintar 50mm lenses in addition to the Lithagon lenses shown below.

C4 Modified 45mm f/1.9 Lens
45mm f/1.9 Lithagon Lens
Very fast, very sharp, very rare!

C4 Modified 35mm f/4.5 Lens
35mm f/4.5 Lithagon

C4 Modified 100mm f/4.5 Lens
100mm f/4.5 Lithagon

C4 Modified 135mm f/3.5 Lens
135mm f/3.5 Lithagon
Note unique see-through lens shade