User manual
Sky-Watcher Esprit 80 ED APO Refractor

User Manual for Sky-Watcher Esprit 80 ED APO Refractor Telescope with Trius Camera Kit

• Product category: Refractors Sky-Watcher
• Brand: Sky-Watcher
• Description and content of package
• Technical information and basic settings
• Frequently asked questions – FAQ
• Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
• Authorized service for Sky-Watcher Refractors

Product description

• Esprit ED APO 80mm f/5 Refractor Telescope The Esprit ED APO 80mm Telescope from Sky-Watcher is a 3-element refractor telescope designed for astrophotographers. The optical system features apochromatic extra-low dispersion (ED) glass and fully multicoated optics. A 2-element threaded field-flattener corrects distortion that can occur at the edges of the field of view. This combination makes astrophotographic images clear and sharp, with high-contrast and true-color transmission, from one edge of the field of view to the other. With a focal ratio of f/5, this fast telescope is well-suited for astrophotography.The 2" rack-and-pinion Helinear Track focusing system allows you to bring celestial objects into precise focus with virtually no shift. The focuser features tracks above and below the focus tube. This gives the mechanism two points of contact, keeping focuser level even with a camera mounted on it. The Esprit comes with a 90° star diagonal with dielectric coatings. These coatings provide better than 99% light reflection. The telescope also comes with a 8x50 right-angle erector finderscope, a Cannon 48mm T-Ring photo adapter, and a foam-lined aluminum case.
  Optical Performance
  • • 3-Element Refractor
    • Aperture: 80mm
    • Focal length: 400mm
    • Focal ratio: f/5
    • Apochromatic extra-low (ED) dispersion glass
    • Fully multicoated optics
  Use and Handling
  • • 2" rack-and-pinion Helinear Track focusing system
    • Thread-on 2-element field flattener
    • 90° star diagonal with dielectric coatings
  Construction Details
  • • Anodized aluminum optical tube assembly
    • Tube rings with Celestron CGE-style dovetail bar
  UPC: 050234114004
• Starlight Xpress Trius SX-42 Monochrome Camera Imaging Kit The Starlight Xpress Trius SX-42 Monochrome Camera Imaging Kit was assembled as part of a joint effort between Sky-Watcher USA and Starlight Xpress in honor of Sky-Watcher's 20th Anniversary and specifically designed to address all the normal confusion new imagers have when setting up their first system. The camera system's 17mm back-focus distance (±1mm) is matched for all Sky-Watcher correctors and simply threads onto the corrector for fast and easy setup. This kit includes Starlight Xpress' Trius 694 monochrome imaging camera, their Lodestar X2 monochrome guide camera, plus a seven-position filter wheel equipped with a built-in off-axis guider (OAG). With low power consumption and a compact lightweight design, this imaging kit is the ideal starter rig for anyone interested in astroimaging.
  Trius SX-42 Camera
  • The Trius features a 6MP Sony ExView 694 monochrome sensor to capture your images with a high-speed USB 2.0 connection to your computer that transfers the images in about 5 seconds. The camera housing is outfitted with a USB hub to power peripherals like the included guide camera and filter wheel to limit the amount of cables and reduce tangle or snag hazards. To help keep the system cool during use, the housing is filled with dry argon gas with an integrated fan that can reduce the camera's temperature as much as 104°F (40°C).
  Lodestar X2 Monochrome Autoguider
  • When used in conjunction with autoguiding computer software, the Loadstar Autoguider will monitor the position of a set guide star during long exposure astrophotography or imaging sessions to ensure the mount is accurately tracking the subject so images remain crisp and sharp. If a deviation is detected, the software automatically sends the necessary tracking corrections to your mount. An autoguider is a must-have piece of gear for any astrophotographer. The Lodestar can be powered by the Trius' USB hub and controlled by the computer it is connected to.
  Filter Wheel
  • An indispensable imaging accessory, a filter wheel allows you to change filters without having to touch your gear, unmount or disassemble your imaging system, or otherwise touch your mount or telescope setup. The whee's drive system changes filters quietly and without vibration. With seven filter cells available, you are able to use your primary colored filters, plus special ones like a narrow band, nebulae, and clear focusing filters. To make this as easy as possible for beginner imagers, the wheel accepts standard 1.25" eyepiece filters so you won't have to go out and get all new filters as you move into a new part of you astronomy hobby. The wheel is USB powered, so you can use the Trius' USB hub to power and control it.An OAG is included, allowing you to use the filter wheel independent of the Trius for observation purposes without losing the convenient auto-correcting functionality of the Trius' guide scope.
  UPC: 050234250016

• Canon 48mm T-Ring Photo Adapter

• Tube Rings with CGE-Style Dovetail Bar

• Aluminum Foam-Lined Carrying Case

• Limited 2-Year Warranty

• Trius Camera

• Lodestar Guide Camera

• Filter Wheel with Off-Axis Guider

• Connection Cable Kit

• Carrying Case

• Limited 1-Year Warranty

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Technical parameters

• Esprit ED APO 80mm f/5 Refractor Telescope

  Optical Design	Refractor
  Aperture	80 mm / 3.2"
  Focal Length	400 mm
  Focal Ratio	f/5
  Focuser	Rack-and-Pinion
  Eyepiece Barrel Diameter	2"
  Diagonal	90 Rating 80% users recommend this product to others. And what about you? This product has already been rated by 12 owners. Add your rating and experience with the product. Discussion Ask our technicians if you have a problem with your settings, or if anything is unclear in the user manual you have downloaded. You can make use of our moderated discussion. The discussion is public and helps other users of our website who may be encountering similar problems. The discussion is empty - enter the first post Post a new topic / query / comment: Items marked with * are required. Your name *: E-mail : Subject *: Message *: Your email address will not be displayed. Do not forget to fill it in if you want to receive a reply to your enquiry/contribution. Processing of personal data in accordance with GDPR