Baader Diamond Steeltrack 2" Focuser For Refractors - BDS-RT 28mm 4" threads directly onto the

4" threads directly onto the STL11000 camera

The slot you see on the top of the TeleVue 3" Ring Mount allows you to attach Televue accessories like the Starbeam

The path length of the Herschel is 128mm

Filter Limits let you filter out objects that are outside of your local horizon (ie

Baader Diamond Steeltrack 2" Focuser For Refractors - BDS-RT 28mm 4" threads directly onto theBaader Diamond Steeltrack 2" Focuser For Refractors Baader Diamond Steeltrack (BDS RT) for Refractors with 80 mm focus travel Minimum height (as supplied incl. 2" clamp): 78 mm Minimum height (with optional S58 direct thread adapters): 65 mm Focuser weight (as supplied incl. 2" Klemme): 1. 160 g (40. 9 oz) Adapters available or under development to fit a wide variety of refractor telescopes NOTE: This product is specifically designed for Refractor