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11/9/2018 9:21:38 PM
Posted: 12/4/2018 11:17:11 PM EST
I know the old PVS-4, the TNVC WASP Clip-On , as well as the Armasight CO-X Clip-On use the catadioptic lens system, but how do they compare to the other Clip-On systems from KAC and L3?

Positives/Negatives, and does anyone have direct experience with the Armasight CO-X in with a Gen 3 tube.

Link Posted: 12/5/2018 2:27:55 AM EST
Big, light lens, means longer focal distance while maintaining aperture, however the missing "middle" lowers the T-number of the lens, and the diameter is sometimes a problem. Less glass means less loss of light.
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