575-579 Gehmann rearsight iris with 6-colour filter, twin polariser, 1.5x diopter and cylindrical correction

Incorporates the patented 565 iris
Iris adjustable over a wide range of 0.5 - 3.0mm
6 optically flat glass colour filters which can be precisely located in position: Yellow, Light Green, Orange, Purple, Dark Grey and Light Grey
Two separately adjustable polarisation filters
Our Gehmann polarization filters offer two key advantages that lead to noticeably better and longer-lasting performance of the aiming eye. Light oscillations ("flicker") can be filtered so that only specific oscillation directions pass through the polarizing filter
By engaging a polarizing filter in which special quartz crystals are embedded, the so-called reflex rays are eliminated
By switching on the second polarizing filter, the position of the quartz crystals relative to each other can be changed so that they achieve a 10 to 90%, continuous, light absorption (changed brightness)
Can be used as an iris only
Locking collar allows precise location of the V-mark
All colour and polarizing filters can be used separately or combined
Light reflection is kept to a minimum by applying a special matt finish to all external and internal surfaces
A revolutionary iris and magnifier assembly which permits correction of diagnosed axial and spherical problems in the shooter's eye
For more information on the corrective part of this unit please refer to our description of 579
Laser engraved indications
Optics 1.5x dioptre with -4.5 to +4.5 dpt correction
Optics can be unscrewed and replaced by the 577-thread adapter to obtain a "classic" iris setup without dioptre adjustment
Thread M9.5x1 for all well-known target rifle brands
Instruction manual included