The adjusting ring fits over the 3" receptacle of correctors and is simply fixed in the desired position with the three grub screws. This allows you to determine how far the corrector is lowered into the 3" receptacle of the focuser. You get a precise and reproducible stop.
Scope of Delivery:
Products specifications
Total length | 8 mm |
material | Aluminum |
Unobstructed inner diameter | 76mm |
Diameter | Outer 86mm |
Bores | M4 |