William Optics 1.25" Rotolock Visual Back Adapter
William Optics Rotolock visual back adapters give the user a handy way to connect eyepieces and accessories to a telescope. They have been designed and machined with superior elegance and precision. To lock an inserted accessory in place, simply rotate the adapter ring clockwise. Rotate counterclockwise to remove an accessory. Inventive design guarantees a secure hold with perfect centering time after time. No thumbscrews to be concerned about! This adapter features a 1.25" visual back on one side, and a 2" tapered barrel with standard M48 female threads on the opposite side.
OPT Product Number: WO-F-ROTO-A2125
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Confused about this thing. Big photo and small photo show 2 different things. Wonder if this replaces reg Cel visual back. That is, screw on back of C8, now, can you insert 1.25" diagonal? Or first do you have to insert that thing in the small photo with
Actually, this is a 2" nosepiece with a 1.25" Rotolock and female M48 threads . The second picture shows this adapter slid into a 2" Rotolock adapter. The part you want for the back of an SCT with 2"-24 threads on the scope side is https://www.optcorp.c