User Manual for Explore Scientific AR102 102mm f 6.5 Achromatic Refractor Telescope Click to enlarge the picture
Contents of the user manual for the Explore Scientific AR102 102mm f 6.5
- Product category: Refractors Explore Scientific
- Brand: Explore Scientific
- 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 Explore Scientific Refractors
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User manual for the Explore Scientific AR102 102mm f 6.5 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 Explore Scientific 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 Explore Scientific 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 Explore Scientific product will considerably shorten its lifespan!
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Product description The AR102 102mm f/6.5 Achromatic Refractor Telescope from Explore Scientific is a powerful optical tube assembly that can be used to see detailed views of celestial objects from the Moon to bright deep sky objects. It is also portable enough to be used as a grab-and-go option over larger and heavier scopes, or it can be easily removed from the included mount and set up on a dual-mount rig for astrophotography/astroimaging. Its fully multicoated achromatic doublet lens configuration correct for spherical and chromatic aberrations to create images that are clear and bright without distortion across the entire field of view, with true color rendition.The AR102 is equipped with 2" Crayford-style focuser, instead of the more common 1.25" focusers typically used. Unlike a traditional rack-and-pinion focuser, a Crayford-style uses a steel rod held tightly against the focus tube. This toothless friction system eliminates backlash and enables ultra-fine precision focusing. A large coarse-focus wheel quickly brings subjects into rough focus and then the 10:1 fine-focus allows the user to precisely focus it without the risk of losing it as soon as the knob is released. The large eyepiece holder provides an expansive amount of angular view required for wide-field observations for long periods.This scope features a mounting cradle-ring that 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 balancing, while avoiding interference with other equipment. Integrated into the cradle-ring is a carrying handle for easier transportation and set-up. The OTA attaches to the Twilight I Alt-Azimuth mount using Vixen-style dovetail plate, so it can easily be swapped with other compatible mounts, and other OTAs will similarly fit onto the mount. Users control the mount using two flexible control arms with large knurled knobs for a sure grip. A chrome-plated 3-section steel tripod provides a solid platform for observations. Also included with the scope are a 90° erect-image diagonal for more comfortable viewing, and an 8x50 finderscope with a quick-release bracket. - Optical Performance
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- 4" 102mm objective lens
- 663mm focal length
- Focal ratio: f/6.5
- Refractor-style optical design
- Anti-reflection fully multicoatings on all optics
- Doublet optical design reduces spherical and chromatic aberrations
- 2" Crayford Focuser
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- Accepts 2" eyepieces and accessories
- Crayford-style two-speed focuser
- Two coarse focus wheels, one on each side of eyepiece holder
- Fine smaller focus dial on right-side of eyepiece holder
- Crayford focusers use a toothless friction system that allows for super-fine precision focusing without backlash
- 2" drawtube prevents vignetting when using wide-field eyepieces for visual, or large imaging sensors for astrophotography
- 2"-to-1.25" reducer adapter allows the use of smaller 1.25" eyepieces and accessories
- Twilight I Alt-Azimuth Mount and Tripod
- Mount
- Worm-gears on Alt and Azimuth axes
- Slow-motion control cables
- Head can be tilted back-to-front to a 45° angle
- Can also be set to point straight up for viewing at the zenith
- Powder-coated aluminum
- Wrench for adjusting the mount is stored in the fork arm, and held in place with a magnet
Tripod- Footprint: 42"
- Payload capacity: 15 lb
- 3-sectio chrome-plated steel legs
- Designed to hold a small to medium sized refractor, or a lightweight reflector
- Extends from 38.5" to 55.5" high and folds down to 42" for transport
- Weighs 16.7 lb
UPC: 812257010110 In the Box Explore Scientific AR102 102mm f/6.5 Achromatic Refractor Telescope Twilight I Alt-Azimuth Mount with Tripod 2"-to-1.25" Reducer Adapter 8x50 Finderscope with Quick-Release Bracket 90° Erect-Image Diagonal Limited 1-Year USA Warranty, Extendable to Transferrable Lifetime Warranty with Registration Table of Contents
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Technical parametersExplore Scientific AR102 Specs | | | Optical Design | Refractor | | Aperture | 102 mm / 4.1" | | Focal Length | 663 mm | | Focal Ratio | f/6.5 | | Eyepiece Barrel Diameter | 2" | | Diagonal | Yes, 90
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