BAADER CMOS O-III 4nm F/3 ULTRA-HIGHSPEED FILTER primary mirror wobbly economy-focusers

wobbly economy-focusers

Venus is the planet that benefits the most using this filter

Backfocus distance 55 mm + 11

HPS means “High Precision and Speed” and is the name for the new series of astronomical mounts by 10Micron

Not included - there are mounting locations for Polemaster

BAADER CMOS O-III 4nm F/3 ULTRA-HIGHSPEED FILTER primary mirror wobbly economy-focusersThe new Baader CMOS optimized O III 4nm Highspeed F 3 filter is a precision grade narrowband filter with a high transmission at the Oxygen III line at 500. 7nm. The Highspeed F 3 versions are specifically designed to work very well with modern highly sensitive astronomy cameras and telescopes with extremely fast focal ratios between f 3. 4 and f 2. 3 such as the Sharpstar Hyperbolic Newtonian astrographs. The ultra narrow 3. 5nm bandpass makes this