OPTOLONG UV/IR CUT FILTER Size:2" M-Uno and Linear mounts but

M-Uno and Linear mounts but thanks to the programmable Gear Ratio and the special motor kit

you need to calibrate your raw images with a flat frame

SkyWatcher Star Adventurer

each one requiring different flexure corrections

Steeldrive Baader (AUX0)

OPTOLONG UV/IR CUT FILTER Size:2" M-Uno and Linear mounts butThe Optolong UV IR cut filter is designed to block ultraviolet and infrared wavelengths and to capture the luminance in monochrome cameras. Also, this filter is needed to cut off unwanted wavelengths in colour cameras which are sensitive to these radiations. Using one shot colour cameras without this filter will cause unnatural colour balances. In refractors, the Optolong IR UV cut is highly recommended to reduce the chromatic aberration, even in