Antlia Oxygen III (OIII) 3nm Pro Highspeed 2" Filter (ANT-OIII-3NM-PRO-2-HS) SCT adapter Ideal for remote observatory setups:

Ideal for remote observatory setups: save and re-load your alignment and park your scope

NOTE: Curves shown are typical for mirror focal lengths in the 1200mm or longer focal length range

Compact and lightweight

No condensation

PL3600289 adapter to connect cameras or accessories with M68 male thread

Antlia Oxygen III (OIII) 3nm Pro Highspeed 2" Filter (ANT-OIII-3NM-PRO-2-HS) SCT adapter Ideal for remote observatory setups:Antlia's SHO 3nm Pro Highspeed Filters are further optimized for high speed imaging systems by pre shifting the center wavelength. This specially optimized version will provide significantly SNR (Signal to Noise Ratio) for the fast telescopes with focal ratio between f 2. 6 and f 3. 6 than the standard 3nm Pro version. The optical light path of a telescope is cone shaped, which creates an angle, and the center wavelength of the interference filter