Beroflex Auto 200mm f/3.5
Beroflex Auto 200mm f/3.5 is a manual focus telephoto lens for full frame cameras.
Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle. Great choice mainly for good light conditions
62 mm lens filter diameter, rarely used filter size, make a try with step-up rings.