Gehmann 575 Rearsight iris, 6-colour, twin polariser and 1.5x lens

575 Gehmann iris, 6-colour, twin polariser, 1.5x lens

Iris 0.5 - 3.0mm 
6-colour filter: orange, light green, yellow, medium grey, dark grey and amethyst (purple)
Two polarisation filters (565)
1.5x magnifying with -4.5 to +4.5 diopter correction
Can be used without colours or polarisers
Detachable diopter (needs 577)If you want to use the iris and polariser alone WITHOUT the diopter you need item #577 which is an adaptor. The adaptor on the diopter is not removeable.
Easy clean instructions included