Skywatcher Esprit 80ED super APO Triplet Refractor OTA


ED80/400 OTA, 3-Element ED refractor plus 2-Element field flattener, 2.7" CNC manchined 1:11 rotatable dual-speed linear power focuser, 8x50 right angel erect finderscope, 2” dielectric diagonal, T2-ring M48, aluminum case

Esprit 80ED Super APO refractors have a doublet field flattener to get a flat field and minimize aberration and distortion. Their wide 48mm opener ensures a larger and clearer aperture and also extremely minimized halation. Connect the triplet and doublet field flattener with a high precision thin thread to keep the optical axis perpendicular to the image. 

Main Features: 

- Premium optical materials 

- Short focal length and full frame corrected focal plane 

- Excellent field flatness 

- Precision linear power focuser is standard 

- Metallic high-transmission lens coatings 

- Light-baffled optical systems 

- Telescope tube attachment hardware 

- Zero detectable Colour Fringing even on Bright Objects

- Knife-edge Baffled Optical System