Celestron Schmidt Cassegrain Reducer / Corrector - 0.63x polar wedge Due to the open system

Due to the open system (i

5" RPA focuser with 2" receptacle

you'll need the M117 x 1 extension sleeves that are included

The special construction consists of a four-lens achromat which achieves minimal color error and better photographic correction than comparable two-lens devices

Total width: 510 mm

Celestron Schmidt Cassegrain Reducer / Corrector - 0.63x polar wedge Due to the open systemThis lens focal reducer shortens the focal length of Schmidt Cassegrain telescopes by a factor of 0. 63. The f ratio changes by the same amount, from 1: 10 to 1: 6. 3. This results in a significantly larger field of view and exposure times that are three times shorter than without the reducer. The optical correction system of this Reducer Corrector flattens the slightly curved field of view of all Schmidt Cassegrain telescopes, providing a fully