Omegon N 76/300 Dobsonian Telescope

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OMEGON-76300

Designed for tabletop observation, the Omegon N 76/300 Dobsonian Telescope combines a 76mm spherical Newtonian reflector with 300mm focal length and a compact wooden rocker box.

  • 76mm aperture provides 1.53-arcsecond resolution
  • 300mm focal length uses f/3.9 optics
  • Tabletop rocker supports manual movement
  • 20mm and 6mm eyepieces included
$61.00

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Description

Weighing only 1.60 kg (3.53 lbs) for the entire assembly, the Omegon N 76/300 Dobsonian Telescope ultra-portable tabletop Newtonian reflector system provides instant access to lunar craters and bright constellations. Designed in Germany, this fast f/3.9 telescope features a 76mm (2.99 inches) aperture and a 300mm focal length, delivering 1.53 arcsecond Dawes resolving power and reaching magnitude 11.2.

The Omegon N 76/300 Dobsonian Telescope utilizes a spherical BK7 optical glass primary mirror with a standard aluminum coating and protective monoxide overlay layer. Its roll-formed heavy-gauge steel cylinder shell features synthetic protective end trim rings and rear collimation retention screws. Mounted on a single-arm wooden tabletop mini rocker box, the ultra-compact 100mm by 270mm optical tube weighs just 1.10 kg (2.43 lbs) for grab-and-go portability.

Key Features of Omegon N 76/300 Dobsonian Telescope

Crafted for desktop lunar scanning and beginner astronomical orientation, this Omegon N 76/300 Dobsonian telescope combines an ultra-short f/3.9 optical tube with a tabletop rocker box. Its single-arm swivel base and Kellner eyepieces allow instant manual pointing across star clusters and the lunar surface.

  • 76mm (2.99 inches) aperture paired with 300mm focal length and fast f/3.9 focal ratio
  • Spherical primary mirror substrate made from standard BK7 optical glass
  • Standard aluminum optical coatings with protective monoxide overlay layer
  • 26mm planar secondary mirror obstruction (34.21% diameter, 11.70% area)
  • 1.25-inch rack and pinion focuser with manual tension adjustment screw
  • Single-side elevation axis pivot pin integrated directly onto wooden tabletop base
  • Pre-drilled chassis provisions for standard auxiliary miniature sighting devices
  • Kellner 20mm and Kellner 6mm eyepieces included for immediate visual observing

Ultra-Compact Newtonian Optics & Wide-Angle Fields

The short 300mm focal length generates wide-field views ideal for casual scanning of the Moon and bright open star clusters. Equipped with a standard 1.25-inch rack and pinion focuser, this mini Omegon Dobsonian supports visual magnifications from 11x up to 152x.

Single-Arm Wooden Tabletop Swivel Rocker Box

Effortless tabletop operation makes spontaneous observing simple for beginners and young astronomers. The Omegon N 76/300 Dobsonian incorporates a single-arm wooden rocker box with a smooth elevation pivot axis, enabling quick manual framing adjustments. Weighing under two kilograms, it sets up instantly on patio tables, desks, or vehicle hoods.

  • Lightweight single-arm wooden tabletop mini rocker box with elevation pivot
  • Included 1.25-inch Kellner 20mm and Kellner 6mm eyepieces for low and high power
  • Rear secondary pull-and-push manual collimation retention screws on mirror base

Omegon N 76/300 Warranty

The Omegon N 76/300 Dobsonian Telescope is backed by a comprehensive 2-year limited warranty against material and manufacturing defects. The complete factory package contains the 76mm spherical Newtonian optical tube assembly, wooden single-arm tabletop mini rocker box base, 1.25-inch Kellner 20mm eyepiece, and 1.25-inch Kellner 6mm eyepiece.

Omegon N 76/300 Dobsonian Telescope Specs

BrandOmegon
Full Model CodeOmegon N 76/300 Spherical Newtonian Reflector Dobsonian Tabletop Mount System
Country of OriginGermany (Designed) / China (Manufactured)
Optical DesignNewtonian Reflector (Spherical Primary Mirror Layout with Planar Secondary Mirror)
Aperture76 mm (2.99 inches)
Focal Length300 mm
Focal Ratiof/3.9
Optical CoatingsStandard Aluminum Coating Treatment with Protective Monoxide Overlay Layer
Glass MaterialStandard BK7 Optical Glass Substrates
Secondary Mirror Obstruction26 mm
Secondary Mirror Obstruction by Diameter34.21%
Secondary Mirror Obstruction by Area11.70%
Resolving Power1.53 Arcseconds (Dawes), 1.82 Arcseconds (Rayleigh)
Limiting Visual Magnitude11.2
Highest Useful Magnification152x
Lowest Useful Magnification11x
Optical Tube MaterialRoll-Formed Heavy-Gauge Steel Cylinder Shell with Synthetic End Protective Trim rings
Focuser Style & Mechanism1.25-inch Standard Rack and Pinion Drive Focuser Array with Manual Tension Adjuster Screw
Mirror Lock MechanismYes (Rear Secondary Pull-and-Push Manual Collimation Retention Screws on Mirror Base)
Optical Tube Dimensions100 mm x 270 mm
Optical Tube Weight1.10 kg (2.43 lbs) - OTA Only / 1.60 kg (3.53 lbs) - Combined Total Assembly Weight
Mount Attachment TypeSingle-Side Elevation Axis Pivot Pin Assembly Integrated directly onto Tabletop Base
Finder Scope SpecificationNot Included / Pre-drilled for Standard Auxiliary Miniature Sighting Devices
Included Accessories76mm Spherical Newtonian OTA, Wooden Single-Arm Tabletop Mini Rocker Box, 1.25-inch Kellner 20mm Eyepiece, 1.25-inch Kellner 6mm Eyepiece
Standard Warranty2-Year Limited Warranty
ApplicationUltra-portable miniature desktop lunar scanning loops and basic astronomical orientation exercises, utilizing a lightweight single-arm wooden swivel hub to enable instant macro frame shifts.

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