Omegon N 76/300 Dobsonian Telescope
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
In Stock
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
| Brand | Omegon |
| Full Model Code | Omegon N 76/300 Spherical Newtonian Reflector Dobsonian Tabletop Mount System |
| Country of Origin | Germany (Designed) / China (Manufactured) |
| Optical Design | Newtonian Reflector (Spherical Primary Mirror Layout with Planar Secondary Mirror) |
| Aperture | 76 mm (2.99 inches) |
| Focal Length | 300 mm |
| Focal Ratio | f/3.9 |
| Optical Coatings | Standard Aluminum Coating Treatment with Protective Monoxide Overlay Layer |
| Glass Material | Standard BK7 Optical Glass Substrates |
| Secondary Mirror Obstruction | 26 mm |
| Secondary Mirror Obstruction by Diameter | 34.21% |
| Secondary Mirror Obstruction by Area | 11.70% |
| Resolving Power | 1.53 Arcseconds (Dawes), 1.82 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 11.2 |
| Highest Useful Magnification | 152x |
| Lowest Useful Magnification | 11x |
| Optical Tube Material | Roll-Formed Heavy-Gauge Steel Cylinder Shell with Synthetic End Protective Trim rings |
| Focuser Style & Mechanism | 1.25-inch Standard Rack and Pinion Drive Focuser Array with Manual Tension Adjuster Screw |
| Mirror Lock Mechanism | Yes (Rear Secondary Pull-and-Push Manual Collimation Retention Screws on Mirror Base) |
| Optical Tube Dimensions | 100 mm x 270 mm |
| Optical Tube Weight | 1.10 kg (2.43 lbs) - OTA Only / 1.60 kg (3.53 lbs) - Combined Total Assembly Weight |
| Mount Attachment Type | Single-Side Elevation Axis Pivot Pin Assembly Integrated directly onto Tabletop Base |
| Finder Scope Specification | Not Included / Pre-drilled for Standard Auxiliary Miniature Sighting Devices |
| Included Accessories | 76mm Spherical Newtonian OTA, Wooden Single-Arm Tabletop Mini Rocker Box, 1.25-inch Kellner 20mm Eyepiece, 1.25-inch Kellner 6mm Eyepiece |
| Standard Warranty | 2-Year Limited Warranty |
| Application | Ultra-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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