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Bresser MC 127/1900 Messier Hexafoc EXOS-1
For manual long-focus observation, the Bresser MC 127/1900 Messier Hexafoc EXOS-1 combines a 127mm Maksutov-Cassegrain with flexible-shaft equatorial movement and a 1900mm focal length.
- Manual EXOS-1 mount uses flexible shafts
- 127mm aperture supports listed planetary observation
- 1900mm focal length uses f/15 optics
- 26mm eyepiece provides listed 73x magnification
- LED red dot finder included
- 4.5kg counterweight and tripod included
In Stock
Description
Making steady tracking essential, the Bresser MC 127/1900 Messier Hexafoc EXOS-1 pairs the same 127mm Maksutov as the OTA version in this line with a full manual EXOS-1 equatorial mount — at f/15, this tube’s narrow field makes steady tracking genuinely important, not just a nice-to-have feature.
The EXOS-1’s stainless tripod and flexible-shaft controls give you the manual precision this focal ratio rewards: small, smooth adjustments keep a planet centered at 254x without the drift a lighter alt-azimuth mount would struggle to correct for. The included accessory tray also keeps filters and a second eyepiece within reach, useful during a long planetary session when swapping magnification quickly matters.
Key Features of Bresser MC 127/1900 Messier Hexafoc EXOS-1
A manual equatorial mount with flexible-shaft slow motion controls suits this Maksutov’s narrow, high-magnification field precisely, rewarding careful hand-tracking over quick casual looks.
- Manual flexible shafts allow fine tracking corrections at high magnification
- Stainless steel field tripod stays steady at magnifications up to 254x
- Sealed Maksutov-Cassegrain tube needs zero collimation, ever
- Included counterweight balances the 3.4kg tube properly once mounted
- Accessory tray keeps eyepieces and filters within arm’s reach
- Included 26mm Super Plossl eyepiece delivers 73x magnification right out of the box
- Precise manual controls reward an observer willing to learn fine tracking technique
The EXOS-1 Advantage
Against the OTA version of this same tube, the EXOS-1 bundle answers the mount question with a setup built specifically for this focal ratio’s demands — precise manual tracking at high magnification, without needing to source a compatible mount separately.
Applications & Use Cases
Built for manual right-ascension tracking, this telescope suits bright solar system targets with balanced weight distribution on a precise f/15 Maksutov platform built for patient observation.
- Observers who want a complete, ready-to-use planetary setup
- Visual astronomers focused on the Moon and planets specifically
- Anyone who enjoys the process of fine manual tracking over automation
Bresser Warranty & Support
The MC-127/1900 EXOS-1 carries a 2-Year Factory Warranty covering manufacturing defects, handled directly through Bresser’s support channel.
Bresser MC 127/1900 Messier Hexafoc EXOS-1 Specs
| Brand | Bresser |
| Full Model Code | Bresser Messier MC-127/1900 EXOS-1 |
| Country of Origin | Germany |
| Optical Design | Maksutov-Cassegrain |
| Aperture | 127 mm (5.0 inches) |
| Focal Length | 1900 mm |
| Focal Ratio | f/15 |
| Optical Coatings | Multi-Coated Optics |
| Secondary Mirror Obstruction | 39 mm |
| Secondary Mirror Obstruction by Area | 9.4% |
| Resolving Power | 0.91 Arcseconds |
| Limiting Visual Magnitude | 12.3 |
| Highest Useful Magnification | 254x |
| Lowest Useful Magnification | 18x |
| Optical Tube Material | Aluminum |
| Focuser Style & Mechanism | Internal Primary Mirror Moving Focuser System |
| Mirror Lock Mechanism | No |
| Optical Tube Dimensions | 160 mm x 360 mm |
| Optical Tube Weight | 3.4 kg (7.50 lbs) - Tube Only |
| Mount Attachment Type | EXOS-1 German Equatorial Mount with Manual Flexible Shafts |
| Finder Scope Specification | LED Red Dot Finder |
| Included Accessories | 26mm Super Plossl Eyepiece (73x), 1.25-inch Zenith Mirror (90-degree), EXOS-1 Equatorial Mount, Stainless Steel Field Tripod, Accessory Tray, Vixen-Style Dovetail Plate, 1x 4.5kg Counterweight |
| Power Requirements | 3V CR2032 Lithium battery for Red Dot Finder |
| Standard Warranty | 2-Year Factory Warranty |
| Application | Manual right-ascension tracking of bright solar targets, providing a balanced tracking weight distribution combined with a precise f/15 Maksutov optical setup. |
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