Bresser N 150/750 Messier Hexafoc Reflector OTA
As an independent optical tube, the Bresser N 150/750 Messier Hexafoc Reflector OTA provides a 150mm parabolic Newtonian system with 750mm focal length and a 2.5-inch Hexafoc focuser.
- Standalone 150mm parabolic reflector optical tube
- 750mm focal length uses f/5 optics
- 2.5-inch Hexafoc focuser supports accessories
- 26mm eyepiece and tube rings included
- Vixen dovetail supports independent mounting
In Stock
Description
Choose a flexible foundation for custom telescope building with the Bresser N 150/750 Messier Hexafoc Reflector OTA, a standalone 150 mm Newtonian optical tube with a 750 mm focal length and listed f/5 optical ratio. The tube combines a 2.5-inch Hexafoc focuser, 6×30 finder, 26 mm eyepiece, heavy-duty rings, carrying handle, integrated camera holder, stainless steel rail, and adapter hardware for compatible mounting systems.
The verified OTA configuration includes a parabolic primary mirror, aperture solar filter, smartphone navigation adapter, Stellarium software, 2-inch eyepiece adapter, integrated 1.25-inch and T2 adapter, universal dovetail connection, and camera mounting features. The mount, tripod, tracking equipment, counterweights, GoTo controller, and power system are excluded from the standalone optical tube and must be selected separately for the final telescope configuration.
Key Features of Bresser N 150/750 Messier Hexafoc Reflector OTA
This optical tube assembly is designed for users who want to choose a compatible mount separately, while the fast Newtonian optics, Hexafoc focuser, mounting rail, finder, eyepiece, rings, handle, camera holder, and supplied adapters provide the principal components for a customized astronomical observing or imaging platform.
- 150 mm parabolic Newtonian reflector
- 750 mm focal length with listed f/5 focal ratio
- 2.5-inch Hexafoc focuser
- Universal dovetail plate with stainless steel rail
- 6×30 optical finder scope
- 26 mm Super Plossl eyepiece
- Heavy-duty tube rings with carrying handle
- Integrated camera holder and smartphone adapter
Custom Wide-Field Optical Configuration
The supplied application is a standalone wide-field optical tube for lunar observation, planetary viewing, deep-sky scanning, and compatible photography-related setups, while final tracking behavior, mount stability, power requirements, camera compatibility, and observing controls depend on the separately selected mount, tripod, counterweights, adapters, and other system components.
Included Accessories
The official OTA package includes the optical tube, 26 mm Super Plossl eyepiece, integrated adapter system, 2-inch eyepiece adapter, 6×30 finder, aperture solar filter, smartphone navigation adapter, Stellarium software, tube rings, carrying handle, camera holder, and universal stainless steel dovetail rail for integration with compatible mounting equipment.
- 26 mm Super Plossl eyepiece and integrated adapter system
- 6×30 finder, solar filter, smartphone adapter, and Stellarium software
- Tube rings, carrying handle, camera holder, and dovetail rail
Bresser Warranty and Support
The supplied product information lists a 2-year factory warranty for this optical tube assembly, while current manufacturer listings may provide separate extended-warranty information, so buyers should confirm whether coverage applies to the OTA, included optical accessories, mounting hardware, and separately purchased equipment used to complete the telescope system.
Bresser N 150/750 Messier Hexafoc Reflector OTA Specs
| Brand | Bresser |
| Full Model Code | Bresser Messier NT-150S/750 OTA |
| Country of Origin | Germany |
| Optical Design | Newtonian Reflector (Parabolic Main Mirror Format) |
| Aperture | 150 mm (6.0 inches) |
| Focal Length | 750 mm |
| Focal Ratio | f/5 |
| Optical Coatings | Aluminum Multi-Coatings with Silicon Dioxide Protective Layer |
| Secondary Mirror Obstruction | 48 mm |
| Secondary Mirror Obstruction by Area | 10.2% |
| Backfocus Distance | 85 mm |
| Resolving Power | 0.76 Arcseconds |
| Limiting Visual Magnitude | 12.7 |
| Highest Useful Magnification | 300x |
| Lowest Useful Magnification | 22x |
| Optical Tube Material | Steel |
| Focuser Style & Mechanism | 2.5-inch Hexafoc Heavy-Duty Rack and Pinion Focuser |
| Mirror Lock Mechanism | No |
| Optical Tube Dimensions | 180 mm x 690 mm |
| Optical Tube Weight | 5.5 kg (12.13 lbs) |
| Mount Attachment Type | Universal Vixen-Style Dovetail Bar with Stainless Steel Rail Protection |
| Finder Scope Specification | 6x30 Optical Finder Scope |
| Included Accessories | 26mm Super Plossl Eyepiece (29x), 1.25-inch Eyepiece Adapter, Tube Rings with Carrying Handle and Integrated Piggyback Camera Mount, Universal Vixen Dovetail Plate |
| Standard Warranty | 2-Year Factory Warranty |
| Application | Custom configuration standalone wide-field optical tube optimized for astrophotography priming and expansive cosmic scanning, utilizing a robust 2.5-inch drawtube to handle heavy imaging loads. |






























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