BAADER CMOS S-II F/2 ULTRA-HIGHSPEED FILTER TESTAR-IP BA2957281 - M93 x 1

BA2957281 - M93 x 1 adapter for refractors which have a M93 x 1 internal thread

36mm - AN-ALP-T36FAST

Camera/eyepiece connection

3" Schmidt-Cassegrain male threads (11" SC/HD and 14" SC/HD) and holds 2" accessories

making it a great time saver

BAADER CMOS S-II F/2 ULTRA-HIGHSPEED FILTER TESTAR-IP BA2957281 - M93 x 1The new Baader CMOS optimized S II 4nm 6. 5nm Highspeed F 2 filter is a precision grade narrowband filter with a high transmission at the Sulphur II line at 671. 7nm. The Highspeed F 2 versions are specifically designed to work very well with modern highly sensitive astronomy cameras and telescopes with extremely fast focal ratios faster than f 2. 3 such as the Celestron RASA astrographs. The ultra narrow 4nm bandpass makes this ideal for imaging