Used Celestron Oxygen III Narrowband Filter - 2" RACI Dive into the Rich Details

Dive into the Rich Details of the Celestial Targets

The Astronomik CLS CCD filter is recommended as a replacement for the Astronomik Luminance filter

which is consistently maintained within ±15 arcseconds

75° INTEGRATED ELECTRONICS INFO: Onboard Computer: Raspberry Pi 4 Model B Mount: Computerized GoTo altazimuth mount Dew Prevention: Fully automated heating element integrated into front lens

all-in-one home observatory takes the complexity out of traditional telescopes

Used Celestron Oxygen III Narrowband Filter - 2" RACI Dive into the Rich DetailsThis is a 2" Celestron O III filter in excellent, clean condition. Comes in its original jewel box. The 2" OIII narrowband filter isolates the two doubly ionized oxygen lines (496 and 501 nm lines) Filter has ultra hard, vacuum deposited coating Eliminates un natural colored halos surrounding bright stars The 2" OIII narrowband filter isolates just the two doubly ionized oxygen lines (496 and 501 nm lines) emitted by planetary and emission nebulae,