550 Gehmann rearsight iris with twin polarisers

550 Gehmann rearsight iris with twin polarisers
  • Incorporates the 510 iris.
  • Iris adjustable over a wide range of 0.5 - 3.0mm
  • 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 - or with one, or both, polarisers.
  • Locking collar allows precise location of the V-mark.
  • Removable steel threaded connector for the opportunity to add, for example the 0.0 dioptre.
  • Light reflection is kept to a minimum by applying a special matt finish to all external and internal surfaces.
  • Laser engraved indications.
  • Thread M9.5x1 for all well-known target rifle brands.
  • Instruction manual included.