Baader Planetarium 20nm H-alpha Bandpass-Filters (with LPFC) Filter Size:2" high efficiency coatings tuned to

high efficiency coatings tuned to the composition of each element

and female M48

95") Parfocal Eyepieces: No Filter Threads: 50

ZWO AM3N mount is equipped with a brake design in case of a sudden power failure

0) focal length are perfect for taking in wide swaths of the heavens

Baader Planetarium 20nm H-alpha Bandpass-Filters (with LPFC) Filter Size:2" high efficiency coatings tuned toWarning: this filter alone is not suitable for direct viewing of the sun! This 20nm filter replaces the former 35nm H alpha filter, which was developed for interline CCD cameras. Due to advances in sensor technology, now much narrower filters can be used with colour sensors. Compared to the CMOS optimized Baader (Ultra) Narrowband Filters, the 20 nm H alpha filter passes considerably more light. This makes the stars in the image brighter, allowing