Gehmann #551 Rearsight Iris, Magnifier and Twn Polarizers

Iris 0.5 - 3.0mm
Two polarisation filters:
- Ring eliminates reflections and controls white round target
- Ring (with stainless lugs) controls light through the sight and enables varying degrees of brightness
10 - 90 % light absorption via the twin polarisers
Can be used as an iris only - or with one, or both, polarisers
1.5x diopter with -4.5 to +4.5 correction
Detachable diopter (needs 577)
Thread Male M9.5

$ 275.00 CAD