Optics held in front surface of the mount in a stepped bore by nylon tipped grub screw. Clear aperture for holding optics will be only for 250-270 degree instead of 360 degree.
Specification
Clear aperture for holding optics will be only for 250-270 degree instead of 360 degree.
One side will be open.
Adjustment range in two planes: +/- 2 degree.
Fine adjustment: By 80 tpi lead screws.
Sensitivity: 20 arc sec. (Lead screws covered for the protection from dust)
