Baader Contrast Booster FilterPlanoptically 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

Outside diameter 50

delivering a truly flat field

Alternatively work with three eyepieces and a CCD-guider camera or planetary camera

Optical Coatings: StarBright XLT

Just screw one onto your eyepiece of choice and slide it into the focuser

Accessory Tray: Die Cast Aluminum Leg Brace / Eyepiece holder

Power cord for Celestron telescopes

The high transmission and fringe reduction work great for both planetary and deep sky imaging

6 Meteorite

Lens Coatings: Fully Multi-Coated – XLT Coatings

or during eyepiece projection work – even in front of a binocular viewer

Resolution: 0