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Sky-Watcher Esprit ED80 OTA

Sky-Watcher Esprit ED80 OTA

photo Sky-Watcher Esprit ED80 OTA
photo Sky-Watcher Esprit ED80 OTA
photo Sky-Watcher Esprit ED80 OTA
photo Sky-Watcher Esprit ED80 OTA
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photo Sky-Watcher Esprit ED80 OTA
photo Sky-Watcher Esprit ED80 OTA
photo Sky-Watcher Esprit ED80 OTA
photo Sky-Watcher Esprit ED80 OTA
photo Sky-Watcher Esprit ED80 OTA
photo Sky-Watcher Esprit ED80 OTA
The price is valid only for the online store and may differ from the prices in retail stores.

Apochromatic refractor optical tube. Aperture: 80mm. Focal length: 400mm

Refractor
Optical design
80
Aperture – the diameter of the light-collecting lens or mirror that the telescope uses to collect light
400
Focal length – the distance from the primary lens or mirror to the point at which the light is focused
Availability
Product ID 70508
Brand Sky-Watcher
EAN 0611901512365
Package size (LxWxH) 68x51x38 cm
Shipping Weight 20 kg
Optical design refractor
description
specifications
downloads
reviews
questions/feedback
accessories
Description

Sky-Watcher Esprit 80ED, 100ED, 120ED and 150ED 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.

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

The kit includes:

  • Optical tube
  • 8x50 erect-image 90° finder scope
  • 2-element thread-on field flattener
  • Thread-on field flattener adaptor
  • 90° diagonal mirror, 2"
  • T-ring for Canon M48 cameras
  • Aluminum case for storage and transportation
  • User manual and warranty
Specifications
Product ID 70508
Brand Sky-Watcher
EAN 0611901512365
Package size (LxWxH) 68x51x38 cm
Shipping Weight 20 kg
Optical design refractor
Optical scheme 3-element apochromat
Optics material ED
Optics coating fully multi-coated
Primary mirror diameter (aperture), mm 80
Focal length, mm 400
Lowest practical power, x 11
Highest practical power, x 160
Aperture ratio f/5
Resolution: Rayleigh criterion 1.74
Resolution: Dawes' limit 1.45
Limiting stellar magnitude 11.6
Finderscope optical, 8x50
Focuser 2-speed, based on a helical rack
Additional 90° diagonal mirror included
User level beginners, experienced users
Assembly and installation difficulty level easy
Observed object terrestrial objects
Pouch/case/bag in set case
References
and downloads
User manual: Sky-Watcher Esprit ED80 OTA (pdf) EN
(PDF, 2.12 Mb)
High-resolution images (zip)
(ZIP, 109.19 Mb)
click to
download
Reviews
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Convenient diagrams that describe how to install additional accessories on refractors and catadioptric telescopes
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A quick guide for novice astronomers (16.12.2019)
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A telescope: how to start observing (16.12.2019)
The basics of astronomical observations for beginners
Frequently Asked Questions – Telescopes (20.04.2020)
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Telescope Under a Microscope: How Does It Work? (18.05.2020)
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First Steps in Astronomy Made Easy! (18.05.2020)
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Beginner’s Short Guide to Telescopes (18.05.2020)
All about telescope sizes, types, magnification, and mounts
How to use a telescope (18.05.2020)
Learn how to set up and use the telescope properly
Astronomical observations in the city (18.05.2020)
Astronomy in light-polluted skies. Find out what you can observe in the city
Telescopes for children (19.05.2020)
Read an interesting comprehensive article on telescopes for little astronomers
Things you can see with a telescope based on its aperture (19.05.2020)
Celestial objects you can observe with telescopes of different apertures
What can you see with a telescope (19.05.2020)
Colored and vivid images of galaxies, planets and star clusters entrance everyone who is fascinated by boundless space
What is a refracting telescope? (20.05.2020)
Find an interesting review on the history of the changes to a refracting telescope
How to choose a telescope (20.05.2020)
To make the process of choosing a telescope easier, we will tell you about the characteristics of the most popular types of telescopes today
A short guide to refractor telescopes: choose your equipment wisely (20.05.2020)
Learn everything you need to know about refractor telescopes to make the right choice
Questions and Answers
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