SKY-WATCHER ESPRIT 80 ED Super APO Instruction Manual
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SKY-WATCHER ESPRIT 80 ED Super APO Instruction Manual

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INSTRUCTION MANUAL
ESPRIT 80 ED Super APO
SL131204
Copyright © Sky-Watcher
1

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Summary of Contents for SKY-WATCHER ESPRIT 80 ED Super APO

  • Page 1 INSTRUCTION MANUAL ESPRIT 80 ED Super APO SL131204 Copyright © Sky-Watcher...

  • Page 2: Table Of Contents

    Table of contents Table of Contents Introduction ............................2 Getting started ........................... 3 Parts description ..........................3 Unpacking the telescope ........................3 Preparing the telescope for an observation ..................4 Cooling the telescope .......................... 4 Aligning the finder scope ........................5 Using the telescope for visual observation ................

  • Page 3: Introduction

    Introduction The spirit of perfection, by Sky-Watcher Designed with the discerning astronomer in mind, Sky-Watcher top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing much more. With their three-element air spaced objective lens design, false color is completely eliminated, yielding exceptional contrast and sharpness.

  • Page 4: Getting Started

    Getting started Parts description 1. Dew cap 2. EQ5 (Vixen) dovetail bar 3. 9x50 erect-image 90° finder scope 4. 2.7" 1:11 dual-speed focuser 5. 2" dielectric diagonal 6. 2" eyepiece f= 28mm Unpacking the telescope Your telescope is inside the sturdy aluminum padded case, designed to securely carry the telescope and the tube rings.

  • Page 5: Preparing The Telescope For An Observation

    Preparing the telescope for an observation A. Upon delivery, and when not used, the telescope and its accessories are inside the aluminum padded case. Unpack instrument… B. The instrument is ready to be placed on the mount, via the EQ5 (Vixen style) dovetail bar.

  • Page 6: Aligning The Finder Scope

    Aligning the finder scope The 9x50 erect-image finder scope is a small fixed magnification scope mounted on the optical tube. When it is correctly aligned with the telescope, objects can be quickly located and brought to the center of the field. The alignment should be done at first use and over time if the alignment is no more accurate.

  • Page 7: Using The Telescope For Visual Observation

    Using the telescope for visual observation • Loosen the two thumbscrews (1) Inserting the eyepiece on the end of the focuser tube. • Insert the 2" diagonal (2) into the focus tube and re-tighten the thumbscrews (1) to hold the diagonal in place.

  • Page 8: Using The Telescope For Prime Focus Imaging

    2" ring adaptor (2) with the other hand. The Sky-Watcher ESPRIT 80 Field flattener has been specifically designed for your telescope. It guarantees excellent field flatness across the entire 33 mm imaging plane and ensures full illumination with extremely minimized halation and zero color fringing even on bright objects.

  • Page 9: Installing The Field Flattener And A Ccd (Charge-Coupled Device) Camera

    In order to get the premium results the field flattener for ESPRIT 80 can deliver the distance between the last lenses to the sensor should be exactly 61mm. This distance is called the field flattener "back focus". The rings are designed to provide 61mm of back focus with any DSLR camera.

  • Page 10: Installing The Field Flattener And A Ccd Camera - Continued

    Installing the field flattener and a CCD camera - continued 1. Screw the drawtube adaptor (1) at the end of the focus tube. 2. Screw the field flattener (2) onto the drawtube adaptor (1). 3. Screw the custom ring (3) onto the field flattener (2).

  • Page 11: Useful Tips For All Observations

    Useful tips for all observations Removing the finder scope During an observation, when the desired target is acquired, it is possible to remove the finder scope from its support. When needed the finder scope can be inserted again. This can be useful when the observer's head is in a position where the finder scope becomes an obstacle to observation.

  • Page 12: Specifications

    Specifications Telescope specifications Optical Design Refractor (air-spaced triplet APO) Field Flattener Thread-on (2 lenses) Aperture (mm) 80 mm (3.15 in) Focal Length 400 mm (15.75 in) Focal Ratio Finderscope 9x50, erect-image, right-angle Diagonal 2" dielectric coatings Dovetail EQ5(Vixen style) dovetail plate Highest Useful Magnification 180 x Lowest Useful Magnification...
  • Page 13 We want to ensure that your experience with a Sky-Watcher product is the best it can be. To make that happen we have a comprehensive technical and customer support available, alongside with the list of distributors and dealers worldwide, on our worldwide internet site: http://www.skywatcher.com...

This manual is also suitable for:

Esprit 100 ed super apo

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