Sky-Watcher Esprit 150ED Reducer/Flattener (.77x) (S20215)

Sky-Watcher Esprit 150ED Reducer/Flattener (.77x) (S20215)Specifications 36mm fully illuminated field, compatible with both APS C and full frame sensors 90mm back focus (55mm when back focus spacer and M48 ring installed) Drops f ratio from native f 7 (1050mm) to f 5. 4 (810mm) Reduces exposure time by 68% compared to native f 7 2. 54 x 1. 7 degree field of view when used with a full frame camera 1. 66 x 1. 11 degree field of view when used with APS C crop sensor Includes reducer, metal thread on caps, back

5"x25" Zenith Eyepiece Height 58

Optical Info Optical Design ED Doublet Lens Coatings Fully Multi-Coated Glass Type BK7/FPL-53(ED) True Aperture (mm) 100 Primary Aperture (mm) 100 F/Ratio 9 Focal Length (mm) 900 Observational Info Dawes Limit 1

Mount German Equatorial Mount Max payload* 45 lbs (20 kg)

starting from the base of mounting thread on the housing to the focal plane

5 kg) Other Features: Ventilation fan

25" Length Accessory Tube for 2

Lunt puts an additional IR blocking filter onto the front surface of the main objective

Built with a dielectric hard-coated BK-7 glass mirror

67 kg) Dovetail: CGE Dovetail Bar

and ASI294 cameras

5"x20" Zenith Eyepiece Height 44

View the Universe's Most Impressive Celestial Objects