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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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