Celestron CGE Dovetail Mounting Plates Size::For 14" SCT The O-III narrowband filter is

The O-III narrowband filter is specially designed for the observation of gas and  planetary nebulae

focus-lock and a 10:1 dual-speed fine focusing option

With an estimated initial mass of about 12

Supplied with Tube Rings and Dovetail bar

Cigarette lighter adapter included

Celestron CGE Dovetail Mounting Plates Size::For 14" SCT The O-III narrowband filter isThese dovetail bars are for use with Celestron 8 **see below 9. 25 11 14 8" RASA The Dovetail bar is the same as (and matches) the mounting bar already fitted onto the bottom of the RASA 8 optical tube. They are very useful for attaching e. g. a guidescope, camera etc. They are made from aluminium, and come with fixing screws. ** Please note: that this product will not work with CPC 800 GPS or CPC Deluxe 800 HD telescopes without completely removing