Celestron 11" Rowe-Ackermann Schmidt Astrograph (RASA11) V2 Optical Tube Assembly (91076) Flattener With this optional M43/T-2 connector

With this optional M43/T-2 connector

12mm focal length range

These eight-lens eyepieces with Phantom Coating® Group excel at planetary observation as well as deep-sky objects - especially when serving as photographic projection eyepieces due to their flat field design

sharp field of view gives you much more viewing time on non-motorized (Dobsonian) telescopes without touching the telescope and w/o changing the eyepiece

On the exterior of the eyepiece

Celestron 11" Rowe-Ackermann Schmidt Astrograph (RASA11) V2 Optical Tube Assembly (91076) Flattener With this optional M43/T-2 connectorCapturing impressive deep sky astroimages is easier than ever with Celestron's Rowe Ackermann Schmidt Astrograph (RASA) V2, the perfect companion to today's top DSLR or astronomical CCD cameras. This fast, wide field f 2. 2 system allows for shorter exposure times compared to traditional f 10 astroimaging, without sacrificing resolution. Because shorter sub exposure times are possible, your equatorial mount won't need to accurately track over extended