AP 2" full aperture visual back for Celestron SCTs
This adapter screws directly onto the 3 1/4" rear cell opening of Celestron 11" and 14" SCTs and provides full, unvignetted viewing for 2" eyepieces and accessories (the standard Celestron visual back restricts the light path and causes vignetting).
Very solidly machined by Astro-Physics. Three large thumbscrews give secure support to heavy visual and photographic accessories.
