Manufacturers

Black TwinStar AstroMark 80mm 16-40x Power Portable Refractor Telescope

  • 80mm fully coated achromatic objective lens, 400mm focal length
  • Super Bright f/5.0 F-ratio for outstanding brightness
  • 25mm & 10mm Kellner 1.25″ diameter eyepieces
  • 6×26 finding scope included
  • Portable “instant use” mini-tripod and carry bag included

16x to 40x Magnification 80mm Spotting Scope: Here is the most versatile optical instrument you will ever own. Perfect for astronomy, hunting, bird watching, or cityscape gazing, this refractor scope provides an impressive view. With a full-coated achromatic 80mm primary objective lens and a short 400mm focal length, this little bundle of power packs a super-fast F/5.0, which means it is the perfect light-gathering instrument for getting great views of birds or animals in darker shaded areas.

Price: $ 89.99

How a refractor telescope works

An introductory look at a basic refractor telescope. How it works and the main parts.
Video Rating: 3 / 5

Mars Oct. 2005 opposition. Meade LX-90 Telescope.
Video Rating: 4 / 5

Telescope Basics (Reflector, Refractor, Schmidt-Cassegrain)

Beginners Guide and Tutorial for Reflector, Refractor, and Schmidt-Cassegrain telescopes, Alt-Azimuth and Equatorial mounts, benefits, and comparisons.
Video Rating: 4 / 5

Sky Watcher Quantum Refractor 120 ED APO OTA S11140

  • 120mm In Aperture, the Skywatcher Quantum is large by refractor standards
  • S-FPL53 glass delivers high fidelity images.
  • Each lens element is personally inspected to guarantee purity and absence of striations.
  • The Skywatcher Quantum Refractor delivers diffraction limited optics that will perform flawlessly
  • The SkyWatcher Quantum virtually eliminates residual chromatic aberration, otherwise known as fals

Sky Watcher Quantum Refractor 120 ED APO OTA S11150

The Sky Watcher Quantum 120mm Refractor is a high end instrument built for the Pro’s. Perfect for Imaging the Sky Watcher Quantum Refractor has a ton of features, many of which are listed below.

Included Accessories with the Sky Watcher Quantum 120:

Includes full accessory assortment:

SkyWatcher Quantum 120 Specifications:

* Great for both visual observation and imaging the SkyWatcher Quantum 120 has a

Price:

Sky Watcher Sky-Watcher 0.85x Focal Reducer/Corrector for Sky-Watcher PRO 120 ED Refractor for

Shop for Optic Accessories from Telescopes.com! 0.85x Focal Reducer/Corrector for Sky-Watcher PRO 120 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher PRO 120 ED APO this superb quality accessory effectively reduces the telescope s focal length by a factor of 0.85x and provides much improved field-edge correction.

Price:

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