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Bresser AC 102/460 Messier Hexafoc EXOS-2
Pairing a rich-field optical tube with the EXOS-2 platform, the Bresser AC 102/460 Messier Hexafoc EXOS-2 provides manual equatorial operation and upgrade-ready mount hardware.
- 460mm focal length uses f/4.5 optics
- 102mm aperture supports listed wide-field applications
- 38mm image circle covers broad viewing fields
- EXOS-2 mount includes integrated polar scope
- Dual-axis motorization and GoTo upgrades supported
- 18x eyepiece, finder, and tripod included
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Description
Adding an upgrade path for astrophotography, the Bresser AC 102/460 Messier Hexafoc EXOS-2 pairs this same fast 102mm rich-field tube with a high-load mount marketed as upgrade-ready for a future motorized drive — a rare case where a wide-field visual scope also gets a path toward tracked imaging later.
An integrated polar scope speeds up alignment beyond eye-sighting, and the heavy-duty stainless tripod holds steadier for extended wide-field sessions than the standard EXOS-1 build — real advantages for anyone treating this as a travel scope that still needs to perform reliably each session. The two included counterweights also make balancing a heavier eyepiece or small guide camera considerably more straightforward than on the single-counterweight EXOS-1.
Key Features of Bresser AC 102/460 Messier Hexafoc EXOS-2
An integrated polar scope and high-load equatorial design set this mount apart from the standard EXOS-1 build sharing this optical tube, adding real value for a frequent traveler.
- Integrated polar scope speeds up accurate alignment before a session
- High-load equatorial design stays steady through extended wide-field sessions
- Upgrade-ready for a future dual-axis motorized or GoTo kit without replacing the mount
- Heavy-duty stainless steel tripod adds rigidity beyond the EXOS-1’s standard build
- Included counterweight balances the tube precisely once mounted
- 2-inch zenith mirror maximizes this fast ratio’s already-wide true field
- Upgrade-ready design suits an observer whose interests may grow over time
How the EXOS-2 Compares
Against the EXOS-1 sharing this same tube, the EXOS-2’s integrated polar scope and high-load rating make it the better pick for a travel rich-field scope that gets used often and needs to hold up to repeated setup and teardown across many nights.
Applications & Use Cases
Built for highly stable wide-field tracking, this telescope suits visual exploration of deep-sky structures on a robust equatorial platform suited to travel or future electronic upgrades.
- Frequent travelers who want a rugged, upgrade-ready rich-field setup
- Observers considering basic tracked astrophotography down the road
- Anyone who sets up and breaks down their scope often
Bresser Warranty & Support
The AC 102/460 EXOS-2 carries a 2-Year Factory Warranty covering manufacturing defects, handled directly through Bresser’s support channel.
Bresser AC 102/460 Messier Hexafoc EXOS-2 Specs
| Brand | Bresser |
| Full Model Code | Bresser Messier AC 102/460 EXOS-2 |
| Country of Origin | Germany |
| Optical Design | Achromatic Refractor (Rich-Field Configuration) |
| Aperture | 102 mm (4.01 inches) |
| Focal Length | 460 mm |
| Focal Ratio | f/4.5 |
| Optical Coatings | Multi-Coated Optics |
| Secondary Mirror Obstruction | 0 mm (0%) |
| Secondary Mirror Obstruction by Area | 0% |
| Backfocus Distance | 110 mm |
| Rear Cell Thread Type | M42x0.75 Male T-thread via integrated adapter |
| Image Circle Diameter | 38 mm |
| Resolving Power | 1.14 Arcseconds |
| Limiting Visual Magnitude | 11.8 |
| Highest Useful Magnification | 200x |
| Lowest Useful Magnification | 15x |
| Optical Tube Material | Aluminum |
| Focuser Style & Mechanism | 2.5-inch Hexafoc Heavy-Duty Rack and Pinion Focuser |
| Mirror Lock Mechanism | No (Refractor Tube Configuration) |
| Optical Tube Dimensions | 103 mm x 460 mm |
| Optical Tube Weight | 2.8 kg (6.17 lbs) - Tube Only |
| Mount Attachment Type | EXOS-2 High-Load German Equatorial Mount with Integrated Polar Scope |
| Finder Scope Specification | 6x30 Optical Finder Scope |
| Included Accessories | 26mm Super Plossl Eyepiece (18x), 2-inch Zenith Mirror (90-degree), 1.25-inch Adapter, EXOS-2 Equatorial Mount, Heavy-Duty Stainless Steel Field Tripod, 1x 4.5kg Counterweight |
| Power Requirements | None (Upgrade-ready for dual-axis motorization or GoTo kits) |
| Standard Warranty | 2-Year Factory Warranty |
| Application | Highly stable wide-field tracking and visual exploration of deep-sky structures, providing a robust, vibration-free equatorial platform suitable for travel or future electronic drive additions. |
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