Baader Contrast Booster Filter Size::1.25" Hand Control Cable

Hand Control Cable

The fluid is Zeiss-APQ tested

Lowest Useful Magnification: 51 x

and precision of guide corrections

Bahtinov masks are made from precision laser cut ABS plastic

Baader Contrast Booster Filter Size::1.25" Hand Control CablePlanoptically Polished with Phantom Coating Group (PCG). A unique filter for many different astronomical tasks. Incomparable in accuracy to combinations of generic color filters made of raw polished glass where surface inaccuracy adds up in the optical wave front to an unbearable degree! Especially designed to improve the ubiquitous beginners telescopes to provide a professional replacement for the simple `dark green` Moon & Solar Filters made of `raw