Bresser AC 102S/600 Messier Hexafoc EXOS-2

SKU:

BRESSER-MESSIERHEXAFOC102600-2

Matched with a high-load equatorial platform, the Bresser AC 102S/600 Messier Hexafoc EXOS-2 supplies a 102mm refractor, integrated polar scope, and manual movement.

  • EXOS-2 mount includes integrated polar scope
  • 600mm focal length uses f/5.9 optics
  • 102mm aperture delivers 1.14-arcsecond resolution
  • Upgrade-ready for dual-axis motorization or GoTo
  • 26mm eyepiece provides listed 23x magnification
  • Heavy-duty tripod and counterweight included
$421.00

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Description

Ready for a future motorized kit, the Bresser AC 102S/600 Messier Hexafoc EXOS-2 is the high-load option for this 102mm tube, rigid enough that Bresser markets it as upgrade-ready — buy it manual today, motorize it later without replacing the mount, a genuine consideration for anyone unsure yet how far they’ll take this hobby.

An integrated polar scope built into the mount head makes polar alignment faster than sighting by eye, the way the EXOS-1 and AT-3 versions of this tube require. That extra rigidity and alignment convenience is the whole case for stepping up from the EXOS-1, and the heavy-duty stainless tripod means longer sessions at higher magnification stay steady instead of drifting between each careful adjustment of the slow-motion controls, a difference that compounds over a multi-hour session under a dark sky.

Key Features of Bresser AC 102S/600 Messier Hexafoc EXOS-2

An integrated polar scope and high-load German equatorial design set this mount apart from the standard EXOS-1 build sharing this optical tube, giving it real headroom for accessories added over time.

  • Integrated polar scope speeds up accurate alignment before a session
  • High-load equatorial design stays vibration-free even at 200x magnification
  • 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 accepts wider-field eyepieces for richer star field views
  • Upgrade path avoids the cost of replacing an entire mount down the road

How the EXOS-2 Compares

Against the EXOS-1 sharing this same optical tube, the EXOS-2’s integrated polar scope and high-load rating make alignment faster and the mount steadier at high magnification. The real long-term case is the upgrade path: this mount accepts a motorized module later, so the manual EXOS-2 doesn’t close the door on GoTo tracking down the road, unlike a fixed-mode mount elsewhere in this catalog.

Applications & Use Cases

Built for highly stable manual tracking of wide-field deep-sky objects and planetary targets, this telescope provides a rigid, vibration-free foundation ready for a future electronic upgrade whenever that becomes a priority.

  • Observers who want a mount they can motorize later without replacing it
  • Anyone running extended high-magnification sessions where rigidity matters most
  • Buyers deferring the manual-versus-GoTo decision until they know their preference

Bresser Warranty & Support

The AR-102S/600 EXOS-2 carries a 2-Year Factory Warranty covering manufacturing defects, handled directly through Bresser’s support channel.

Bresser AC 102S/600 Messier Hexafoc EXOS-2 Specs

BrandBresser
Full Model CodeBresser Messier AR-102S/600 EXOS-2
Country of OriginGermany
Optical DesignAchromatic Refractor (Short Tube Configuration)
Aperture102 mm (4.01 inches)
Focal Length600 mm
Focal Ratiof/5.9
Optical CoatingsMulti-Coated Optics
Secondary Mirror Obstruction0 mm (0%)
Secondary Mirror Obstruction by Area0%
Backfocus Distance115 mm
Rear Cell Thread TypeM42x0.75 Male T-thread via integrated adapter
Image Circle Diameter34 mm
Resolving Power1.14 Arcseconds
Limiting Visual Magnitude11.8
Highest Useful Magnification200x
Lowest Useful Magnification15x
Optical Tube MaterialAluminum
Focuser Style & Mechanism2.5-inch Hexafoc Heavy-Duty Rack and Pinion Focuser
Mirror Lock MechanismNo (Refractor Tube Configuration)
Optical Tube Dimensions103 mm x 600 mm
Optical Tube Weight3.9 kg (8.60 lbs) - Tube Only
Mount Attachment TypeEXOS-2 High-Load German Equatorial Mount with Integrated Polar Scope
Finder Scope Specification6x30 Optical Finder Scope
Included Accessories26mm Super Plossl Eyepiece (23x), 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 RequirementsNone (Upgrade-ready for dual-axis motorization or GoTo kits)
Standard Warranty2-Year Factory Warranty
ApplicationHighly stable manual tracking of wide field deep-sky objects and planetary configurations, providing an rigid, vibration-free foundation prepared for electronic upgrade modules.

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