Bresser AC 152S/760 Messier Hexafoc Refractor OTA

Description

Framing extended galactic structures in one view, the Bresser AC 152S/760 Messier Hexafoc Refractor OTA uses a 6-inch Petzval-like design at f/5 that makes this the largest rich-field tube in Bresser’s catalog — 10.6kg of aperture built to gather sweeping nebula fields in a single wide view. This version ships as a bare optical tube, no mount included.

At 10.6kg, this tube needs a genuinely high-load mount rated for at least 14kg — this isn’t a tube to pair with a mount built for a smaller aperture, and Bresser’s own accessory line reflects that with its heaviest EXOS-2 bundles built specifically for this tube. The 42mm image circle is among the widest rich-field formats Bresser offers, and the 8×50 optical finder scope makes locating dim galactic structures noticeably easier than a smaller finder would manage.

Key Features of Bresser AC 152S/760 Messier Hexafoc Refractor OTA

A 4-element Petzval-like optical design in 152mm aperture resolves down to 0.76 arcseconds, reaching a limiting magnitude of 12.7 for genuinely deep wide-field views.

• 152mm aperture at f/5 is the largest rich-field tube in this catalog
• 42mm image circle is among the widest rich-field formats Bresser offers
• 2.5-inch Hexafoc heavy-duty focuser holds a full 2-inch imaging train steady
• 8×50 optical finder scope offers a brighter view for locating dim galactic structures
• Integrated piggyback camera mount lets this tube ride alongside a second scope
• Magnification range from 22x to 300x stretches further than most rich-field scopes
• Maximum common aperture in this catalog’s rich-field line for anyone chasing faint targets

What Sets the AR-152S/760 OTA Apart

Every mounted version of this same 152mm tube shares identical optics — this OTA-only version only makes sense for buyers who already own a mount genuinely rated for 14kg or more, since this is the heaviest rich-field tube in the catalog.

Applications & Use Cases

Built as a large rich-field optical assembly, this telescope suits fast wide-field tracking of extended galactic structures and nebula fields on an independent high-load mount.

• Observers who already own a high-load mount rated for 14kg or more
• Deep-sky enthusiasts wanting maximum aperture in a rich-field format
• Anyone chasing the faintest extended nebulae this catalog’s optics can reach

Bresser Warranty & Support

The AR-152S/760 OTA carries a 2-Year Factory Warranty covering manufacturing defects, handled directly through Bresser’s support channel.