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User Manual for Sky-Watcher Evostar ED APO 72mm f 5.8 Refractor Guidescope Click to enlarge the picture
Contents of the user manual for the Sky-Watcher Evostar ED APO 72mm f
- 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
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User manual for the Sky-Watcher Evostar ED APO 72mm f contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Sky-Watcher product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Sky-Watcher user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Sky-Watcher product will considerably shorten its lifespan!
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Product description Use the Sky-Watcher Evostar ED APO 72mm f/5.8 Guidescope to improve the precision of your autoguiding system, for wide-field astrophotography with small CCD imagers, or as an exceptional grab-and-go option for fast observation sessions.The larger 72mm aperture is complemented by an extra low-dispersion (ED) element set in a doublet apochromatic lens design. These two optical features make the Evostar much more precise than standard refractors and guidecopes, producing crisp and clear high-resolution views with limited edge distortion and accurate color representation. To achieve the sharpest focus possible, Sky-Watcher utilizes a Crayford-style focuser. Unlike a conventional rack-and-pinion system, the focuser utilizes a toothless friction mechanism that smoothly moves the drawtube without the backlash that rack-and-pinion focusers suffer from. The focuser has a large 2" drawtube to accommodate full-frame imaging sensors without vignetting, and comes with a 1.25" reducer adapter for smaller imaging and guiding systems.A mounting cradle-ring assembly clamps over the OTA and lets the user adjust the orientation and position of the scope relative to the mount to optimize viewing comfort and to help with balancing, while avoiding interference with other equipment. The scope is offered without a mount or tripod, but a Vixen-style dovetail plate makes it compatible with any mount head with a Vixen-style saddle. Protecting the optical tube and accessories during transport and storage, a hard aluminum carrying case is provided. - Uses
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- Autoguider scope: The optical performance improves the precision of autoguiding systems by being able to finely focus the field and resolve guide-stars better
- Wide-field astrophotography: Using 2" or 1.25" imaging systems directly into the drawtube enables tack-sharp and highly resolved wide-field images of the night sky, galaxies, constellations, and other objects
- Visual: Its optical performance, short focal length, and mounting rings make it an ideal fast grab-and-go option for planetary and lunar observation
- Optical Tube Assembly
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- 72mm aperture is especially useful for lunar and planetary use
- Short 420mm focal length helps to maintain a short form factor and produce a fast focal ratio
- Fast f/5.8 focal ratio reduces the exposure times required during astrophotography to capture bright and clearly resolved images versus smaller optical systems
- Apochromatic doublet lens design with an extra low-dispersion element eliminates chromatic and spherical aberrations for true color rendition and without distortion across the entire field of view
- Hard aluminum carrying case
- Focuser
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- Dual-speed Crayford-style
- Crayford focusers use a toothless friction system that allows for super-fine precision focusing without backlash
- Large 2" drawtube prevents vignetting when using wide-field eyepieces for viewing, or large imaging sensors for astrophotography
- 2"-to-1.25" reducer adapter allows the use of the more common 1.25" eyepieces and accessories
- Mounting
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- OTA only, mount head and tripod required for proper use
- Cradle-ring assembly for dovetail plate allows the scope orientation to be changed based on mount configuration
- Vixen-style dovetail plate is compatible with any alt-az or equatorial mount with a Vixen-style saddle
- Weight: 4.3 pounds
UPC: 050234111805 In the Box Sky-Watcher Evostar ED APO 72mm f/5.8 Refractor Guidescope (OTA Only) 1.25" Reducer Adapter Mounting Ring Assembly Aluminum Carrying Case Limited 2-Year Warranty Table of Contents
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Technical parametersSky-Watcher Evostar Specs | Optical Design | Apochromatic doublet refractor | | Aperture | 72mm | | Focal Length | 420mm | | Focal Ratio | f/5.8 | | Eyepiece Barrel Diameter | 2"
1.25" with included adapter | | Diagonal | None | | Finderscope | None | | Tripod | None | | Mount Type | Vixen-style dovetail | | Power Source | None | | Optical Tube Dimensions | 16.5 x 3.5" / 41.9 x 8.9 cm | | Weight | 4.3 lb / 2.0 kg | | | | Package Weight | 12.95 lb | | Box Dimensions (LxWxH) | 23.0 x 14.5 x 10.0" |
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Post new comment to Sky-Watcher Evostar ED APO 72mm f 5.8 Refractor Guidescope
| Subject: Back focus | | Date: 29.03.2021 21:03:58 | Name: Jaspreet Singh | | Hi. I’m struggling to find to out what’s the back focus for skywatcher 72mm APO refractor telescope? Also when I put adaptors and reducers do I just slide into and lock the screws? Please advice. Thanks | | Post reply |
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