BAADER M54 EXTENSION TUBE SHARPSTAR13 the QHY 268C has an

the QHY 268C has an AR coated optical window on both sides rather than the common IR/UV cut coating

SkyWatcher NEQ6

75 male Weight 40 g SKU BA2458229

This allows control from the mount’s hand controller (NexStar+ or StarSense) or a computer

8mm) while maintaining an optical thickness of 1

BAADER M54 EXTENSION TUBE SHARPSTAR13 the QHY 268C has anThe Baader M54 extension tubes have male M54 x 0. 75 threads on one side and female M54 x 0. 75 threads on the other. They can be useful for reaching the precise backfocus distance as required by correctors. It features a knurled ring for easy gripping and internal baffling to reduce internal reflections. Specifications Optical length 5 to 40 mm Clear aperture 51 mm Outer diameter 59 mm Connection telescope side M54 x 0. 75 male Connection camera side