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550 Gehmann iris & twin polariser

• Iris
• Two polarisation filters:
  • 1. ring eliminates reflections and controls white around target
  • 2. ring (with stainless lugs) controls light through the sight and enables varying degress of brightness
• 10 - 90 % light absorption via the twin polarisers
• Can be used as an iris only - or with one, or both, polarisers
• Removable steel threaded connection which enables the use of a diopter
• Easy clean instructions are included

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