B50 Bayonet: fits C lenses 80, 100, 105, 120, 135, 150, 250, early 80F
4x filter factor
-2 exposure decrease of two stops
Included: Front and rear caps.
Cosmetic: Light surface wear to the exterior.
Optical: Filter is excellent. Free from all marks.
Cosmetic Condition: 4
(Signs of light use, but not misuse. No other cosmetic damage.)
Functional Condition: E
(Everything functioning. Major functions have recently been professionally tested.)