Made by Kiron.
Sharp with excellent close up performance.
Two touch zoom.
Spacer ring is loose, but does not affect function.
Constant f3.8 aperture.

Filter Size: 55mm
Lens Mount: Canon FD
Aperture Range: f3.8 - f22
Close Focus: 1.3ft
Macro Ratio: 1:4
Year Introduced: n/a
Weight: 1.19 lbs