Sky-Watcher 0.77x Reducer/Flattener for EvoStar 150DX

• Sky-Watcher 0.77x Reducer/Flattener
• Only for the EvoStar 150DX Focuser
• Compatible with both APS-C and full frame sensors
• 34 mm fully illuminated field is available
• Provides an 89 mm back focus
• Or, 55 mm when back focus spacer and M48 ring installed
• Lowers f/ratio from native f/8 (1200 mm) to f/6.2 (930 mm)
• Reduces exposure time by 66% compared to native f/8
• 2.22 x 1.48 degree field of view when used with a full frame camera
• 1.45 x 0.97 degree field of view when used with APS-C crop sensor
• Includes thread-on adapter to mount reducer to Evostar 150DX focuser
• Includes metal thread-on caps and back focus spacer

This is the Sky-Watcher 0.77x Reducer/Flattener for their EvoStar 150DX telescope. Use this Reducer and Flattener attachment with the EvoStar 150DX optics to lower the f/ratio from native f/8 (1200 mm) to f/6.2 (930 mm). It also reduces your imaging exposure time by 66% compared to native f/8, by providing a brighter image.

This Sky-Watcher 0.77x Reducer/Flattener for EvoStar 150DX provides a nominal 89 mm or a 55 mm back focal distance which is compatible with many imaging cameras. Install the included spacer to change the back focus from the 89 mm down to the 55 mm. It also includes a convenient M48 thread adapter to mount this reducer to the Evostar 150DX's focuser. It also includes a built-in 2" filter cell to allow installation of 2" filters.

Specifications: