This 2" adapter does many things.
- It serves as a 2" visual back for focusers that have an M63 female thread.
- It is a 360 degree rotator with nylon bearing surfaces.
- Unthread the 2" back and it will accept accessories with the M54 X .75 thread.
- Unthread the first knurled ring and you have an M68 X 1 thread which accepts many flatteners including our new SFFX-1 field flattener, former SFF3 and SFF4 flatteners and other 2.5" flatteners that use the M68X1 thread.
Cnc machined and black anodized finish.
This rotator has three configurations. It is 20.75 mm in length when using the 68 mm female connection, 25.15 mm long connecting to the 54 mm female thread, and 37.25 mm long when using the 2" compression clamp. It has six nylon bearing screws, a Teflon thrust bearing and a thumb screw to lock rotation.
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I got one of these to add to my SV102 Access. This model is improved from a verison that I have on my SV70T in that it uses a nylon thumbscrew rather than a steel one. The steel thumbscrew digs into the aluminum and creates burrs that make the rotation less smooth. I would give a 5 star rating if it had an adjustable ring with degree markings on it. Thankfully I own a 3D printer so I made my own....