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Orion

Orion Apex 102mm Maksutov Cassegrain Telescope Kit with Eyepiece & Software, Apex 102mm Optical Diameter, f/12.7 Focal Ratio

SKU: ONA120MC MFR: 09823
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About the Orion 102 Maksutov Cassegrain

The Orion Apex 102mm Maksutov Cassegrain Telescope has large-diameter optics, 102mm, to be housed in an unusually compact, wonderfully portable tube. As a spotting scope, the Apex 102 gathers more light than typical field scopes (often costing several times more), serving up brighter, more highly resolved images even in the dimmest of lighting conditions.

Multi-coatings applied to the curved front lens guarantee the highest possible light transmission. For astronomy, the Apex telescope exhibits all the performance of classic long-tube 102mm refractors and easily outperforms smaller refractors on views of the planets and Moon as well as on faint nebulas and star clusters. Its long focal length allows high-power study of Jupiter's cloud belts and Red Spot and Saturn's rings and provides long reach for capturing distant terrestrial targets. The Apex telescopes accept standard 1.25" telescope eyepieces for nearly unlimited magnification options.

Speaking of accessories, the Apex 102 comes with a multi-coated 25mm Sirius Plossl eyepiece (1.25") and a 45° diagonal that provides a correctly-oriented field of view. As does the correct-image finder scope (6x26 on Apex 102), which makes locating objects a cinch. The finder scope is held in a quick-release dovetail bracket for easy assembly and disassembly. It also includes a rugged, fully padded carrying case to protect your instrument. It's got hand and shoulder straps and ample pockets for accessories.

The scope easily pops on and off a telescope mount or camera tripod with the built-in 1/4"-20 adapter plate. And it doubles as a high-power telephoto lens for photography, too by mounting a 35mm camera body (with optional T-ring) to the T-threads on the eyepiece holder.

Orion 102 Maksutov Cassegrain Includes

  • Orion Optical Tube Assembly
  • 25mm Sirius Plossl Eyepiece (1.25")
  • 45-Deg Correct-Image Diagonal (1.25")
  • 6x26 Correct-Image Finder Scope
  • Finder Scope Bracket with O-Ring
  • Dust Cap
  • Soft Carry Case
  • Starry Night Special Edition Software
  • Orion 1 Year Limited Warranty

Orion 102 Maksutov Cassegrain Features

  • Small enough to store on a bookshelf but with the power of traditional scopes five times its size
  • 102mm aperture and 1300mm focal length for fantastic celestial and terrestrial views
  • Includes one eyepiece, finder scope, diagonal, case and Starry Night astronomy software

Orion 102 Maksutov Cassegrain Specifications

Use Astronomy & terrestrial
User level Beginner
Optical design Maksutov-Cassegrain
Optical diameter 102mm
Focal length 1300mm
Focal ratio f/12.7
Eyepieces included Sirius Plossl 25.0mm (1.25")
Magnification with included eyepieces 52x
Resolving power 1.13arc sec
Lowest useful magnification 15x
Highest useful magnification 204x
Limiting stellar magnitude 12.7
Optical quality Diffraction limited
Finder scope 6x26 Correct-image
Focuser Internal
Diagonal 1.25" 45-deg Prism Correct-image
Secondary mirror obstruction 31mm
Secondary mirror obstruction 34% by diameter
Secondary mirror obstruction by area 12%
Mount style Optical Tube without Mount
Astro-imaging capability Lunar & planetary
Tube material Aluminum
Length of optical tube 11.0 in
Weight, optical tube 5.0 lbs
Warranty Orion 1 year limited warranty
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