Converts f/10 optical system to faster f/6.3 for a significantly wider field of view.
Reducer shortens the effective focal length of Schmidt-Cassegrain telescope optical system by 37%.
This combination focal reducer and field corrector lens accessory works with all Celestron 5", 6", 8", 9 1/4", 11" and 14" Schmidt-Cassegrain telescopes.
Four-element, fully multi-coated optical design with 41mm clear aperture.
This clever accessory makes it possible to have a dual focal ratio instrument, without sacrificing image quality.
Alstar 2" Narrowband O-III Filter - Produces Near-Photographic Views of The Veil, Ring, Dumbbell and Orion Nebula, Among Many Other Objects
KWD 35.500
Alstar Guide Scope Mount - The Convenient Way to Mount Your Guide Scope
KWD 62
Alstar 2" Narrowband NBPF Hydrogen-a 12nm Filter - Enhances The Contrast Between Object and Sky - Allows You to Take Images Even Under Urban Skies
KWD 55.500
Alstar 1.25" Astrophotography Flip Mirror with Eyepiece Adapter - The flip Mirror for Precise Focusing
KWD 51.500
