570 Gehmann rearsight iris with 6-colour filter and 1.5x diopter

Iris 0.5 - 3.0mm
1.5x diopter with -4.5 to +4.5 correction
Detachable diopter (needs 577)
Easy clean instructions included
6-colour filter: orange, light green, yellow, medium grey, dark grey and amethyst (purple)
Can be used without colours
Can be used as iris only
Easy clean instructions included
Black