Bresser N 203/1000 Messier Hexafoc Reflector OTA
Supplied as a standalone optical tube, the Bresser N 203/1000 Messier Hexafoc Reflector OTA combines a 203mm parabolic reflector with 1000mm focal length and independent Vixen-style mounting.
- Standalone 203mm Newtonian optical tube
- 1000mm focal length uses f/4.9 optics
- 2.5-inch Hexafoc focuser and Vixen dovetail included
In Stock
Description
Build a large-aperture observing system around the Bresser N 203/1000 Messier Hexafoc Reflector OTA, a standalone 203 mm Newtonian optical tube with a 1000 mm focal length and listed f/4.9 optical ratio. The tube includes a 2.5-inch Hexafoc focuser, 8×50 optical finder, 26 mm Super Plossl eyepiece, heavy-duty rings, carrying handle, integrated camera holder, Vixen-style dovetail rail, and adapter hardware for a compatible mount selected separately.
The supplied optical tube is intended for customized deep-sky and planetary configurations where the buyer chooses the mount, tripod, counterweights, tracking equipment, and power system independently. The package includes the large-aperture optical tube, finder, eyepiece, adapter system, tube rings, camera holder, and dovetail connection, while any final imaging capability depends on the separately selected camera, mount, guiding equipment, and optical accessories.
Key Features of Bresser N 203/1000 Messier Hexafoc Reflector OTA
This standalone optical tube provides a large 203 mm Newtonian aperture with a 1000 mm focal length, 2.5-inch Hexafoc focuser, 8×50 optical finder, heavy-duty mounting hardware, camera holder, and Vixen-style rail for integration into a compatible equatorial or other supported telescope platform.
- 203 mm parabolic Newtonian reflector
- 1000 mm focal length with listed f/4.9 focal ratio
- 2.5-inch Hexafoc focuser
- Universal Vixen-style dovetail bar
- 8×50 optical finder scope
- 26 mm Super Plossl eyepiece
- Heavy-duty tube rings with carrying handle
- Integrated piggyback camera mounting point
Custom Large-Aperture Observation
The supplied application is a standalone large-aperture optical tube for deep-sky observation, planetary viewing, lunar observation, and compatible photography-related configurations, while final tracking behavior, payload support, power requirements, camera compatibility, and system stability depend on the separately selected mount and other equipment.
Included Accessories
The supplied OTA configuration includes the optical tube, 26 mm Super Plossl eyepiece, 1.25-inch adapter, 2-inch connection hardware, 8×50 finder, heavy-duty tube rings, carrying handle, integrated piggyback camera holder, universal Vixen-style dovetail plate, and related mounting components required to connect the tube to compatible support equipment.
- 26 mm Super Plossl eyepiece and adapter hardware
- 8×50 optical finder and heavy-duty tube rings
- Carrying handle, camera holder, and universal 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 any separately purchased mount or imaging equipment used with this large-aperture telescope.
Bresser N 203/1000 Messier Hexafoc Reflector OTA Specs
| Brand | Bresser |
| Full Model Code | Bresser Messier NT-203/1000 OTA |
| Country of Origin | Germany |
| Optical Design | Newtonian Reflector (Parabolic Main Mirror Format) |
| Aperture | 203 mm (8.0 inches) |
| Focal Length | 1000 mm |
| Focal Ratio | f/4.9 |
| Optical Coatings | Aluminum Multi-Coatings with Silicon Dioxide Protective Layer |
| Secondary Mirror Obstruction | 60 mm |
| Secondary Mirror Obstruction by Area | 8.7% |
| Backfocus Distance | 60 mm |
| Resolving Power | 0.57 Arcseconds |
| Limiting Visual Magnitude | 13.5 |
| Highest Useful Magnification | 400x |
| Lowest Useful Magnification | 29x |
| Optical Tube Material | Steel |
| Focuser Style & Mechanism | 2.5-inch Hexafoc Heavy-Duty Rack and Pinion Focuser |
| Mirror Lock Mechanism | No |
| Optical Tube Dimensions | 250 mm x 940 mm |
| Optical Tube Weight | 11.9 kg (26.24 lbs) |
| Mount Attachment Type | Universal Vixen-Style Dovetail Bar with Stainless Steel Rail Protection |
| Finder Scope Specification | 8x50 Optical Finder Scope |
| Included Accessories | 26mm Super Plossl Eyepiece (38x), 1.25-inch Eyepiece Adapter, Heavy-Duty Tube Rings with Carrying Handle and Integrated Piggyback Camera Mount, Universal Vixen Dovetail Plate |
| Standard Warranty | 2-Year Factory Warranty |
| Application | Custom configuration standalone large-aperture optical tube optimized for deep-sky observation and light-gathering visual tracking setups, leveraging a heavy-duty 2.5-inch focusing assembly. |
























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