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Astrophotographers with fast Newtonians (fast focal ratios amplify collimation errors)
Guiding occurs with the same light path as the imaging detector thereby eliminating the effects due to differential flexure/slop of the auxiliary guide scope
the Econoline provides solid performance
so the three adjustment screws per ring can center and grip it securely
Lumicon 2 Inch #25 Red Color Filter Nebula Bandpass Astrophotographers with fast Newtonians (fastLumicon 2 Inch #25 Red Color Filter Lumicon 2 Inch #25 Red Color Filter highlights details on Mercury, make Venus and its terminator pop against dawn dusk, explore maria on Mars, cloud bands on Jupiter and Saturn, and reveal dusky features on Uranus and Neptune with this filter. Fits any standard 2" eyepiece.
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