ANTLIA 2.5nm ULTRA NARROWBAND 2" SET Ha + OIII + SII BA20 SKU CE-94241

SKU CE-94241

Orion and other Newtonians and Dobsonian telescopes with secondary mirrors glued to holders in form of a stalk of almost the diamater of the secondary

08 arc seconds (200 PPS) Transmission Synchronous belt Latitude adjustment range 0º ~ 60º (special CW shaft mounting if <10° ) Azimuth adjustment range ± 6º Polar Scope Internal iPolar electronic polar scope Level indicator Level bubble Hand Controller Go2Nova 8407+

Greenline observatories are fumigated but the wood is not treated

ANTLIA 2.5nm ULTRA NARROWBAND 2" SET Ha + OIII + SII BA20 SKU CE-94241The Antlia 2. 5nm Ultra narrowband 2" filters have a FWHM (full width half maximum) of an incredible 2. 5nm +0. 3 0. 1nm and a high transmission efficiency of > 92 95% at the central wavelength. These filters are made from quartz glass which has an ultra low thermal expansion coefficient and outstanding thermal and mechanical properties. Utilizing Antlia's precisely controlled advanced coating process, these filters are exceptionally durable and can