Knobs for Newtonian 8' Primary Mirrors
Knobs for Newtonian 8” Primary
Fits: 8” Newtonian telescopes manufactured by Guan Shen Optical (GSO), including Meade LIghtbridge, Hardin Optical, and Zhumell.
- Knobs: Black plastic, 30 mm (1-1/4”) diameter, 5-point fluted
- Threads: Plated steel
- Knobs: Black plastic, 25 mm (1”) diameter, knurled
- Threads: Stainless steel
- These knobs will fit telescopes with M7 (7 mm diameter) primary adjustment screws and M6 (6 mm diameter) primary lock screws. These knobs will not fit 8” GSO telescopes that have M5 (5 mm diameter) primary adjustment screws.