OPTOLONG UV/IR CUT FILTER Size:2" 15 7mm T2 extension +

15 7mm T2 extension + 7mm T2 extension + T2 spacer 1mm PL3304207 + PL3304207 + PL3304201 15

you need to calibrate your raw images with a flat frame

Steeldrive Baader (AUX0)

Differently from many other flatteners

SkyWatcher Star Adventurer

OPTOLONG UV/IR CUT FILTER Size:2" 15 7mm T2 extension +The 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