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This 532nm Green collimator version is much brighter than the red ones (632nm or 650nm).

In most circumstances it is overly bright for night time collimation, but it is useful for Barlowed or holographic collimation in daylight or higher levels of ambient light.

Aligned to within 15 arc-seconds

Laser Colimating Instructions


Other Info Holagraphic and 1mm aperture stop thread: 5/16-56