Celestron 11" Rowe-Ackermann Schmidt Astrograph (RASA11) V2 Optical Tube Assembly (91076) Flattener 12mm focal length range

12mm focal length range

95% transmission in the selected spectral range

Explicitly designed for Celestron Schmidt-Cassegrain telescopes

our Protective Canon EOS T-Ring uses a clear glass filter for dust protection

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

Celestron 11" Rowe-Ackermann Schmidt Astrograph (RASA11) V2 Optical Tube Assembly (91076) Flattener 12mm focal length rangeCapturing 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