Vixen A80Mf AC 80/910 Advanced Polaris AP Telescope

Description

Track the cloud belts of Jupiter and craters on the lunar terminator through the Vixen A80Mf AC 80/910 Advanced Polaris AP Telescope manual equatorial refractor telescope system. Operating at an f/11.4 focal ratio with a 910mm focal length, this 80mm (3.15 in) clear aperture instrument delivers a 1.45 arcseconds theoretical resolving power and reaches magnitude 11.3, gathering light for high-contrast lunar observing, planetary tracking, and double-star astrometry.

The optical system features an air-spaced Fraunhofer achromatic doublet objective fabricated from precision annealed Japanese crown and flint optical glass, treated with multi-coated anti-reflection layers and presenting an unobstructed 0% central profile. Built inside an aluminum chassis measuring 860mm in length with a 90mm outer tube diameter, the tube assembly supplies a 44mm full-frame visual and photographic field. Supported by a 1.25-inch single-speed rack-and-pinion focuser with an integrated T-2 camera thread, this 3.30 kg (7.28 lbs) optical tube mounts to an included Advanced Polaris manual German equatorial mount with slip-clutch slow-motion controls and an APP-TL130 aluminum tripod for a total system weight of approximately 11.0 kg.

Key Features of Vixen A80Mf AC 80/910 Advanced Polaris AP Telescope

Engineered for visual observers demanding precise manual celestial tracking, this 80mm refractor pairs Japanese optical components with Vixen’s modular Advanced Polaris equatorial mount. Its friction slip-clutch mechanism, APP-TL130 compact tripod, two NPL eyepieces, and erect-image diagonal prism provide a stable, upgradable platform for solar system exploration.

• 80mm (3.15 in) clear aperture with 910mm focal length and high-contrast f/11.4 focal ratio
• Air-spaced Fraunhofer achromatic doublet made from precision annealed Japanese optical glass
• Multi-coated optical surfaces delivering high light transmission with 0% central obstruction
• 1.25-inch rack-and-pinion focuser with integrated external T-2 thread for camera attachments
• Modular Advanced Polaris (AP) manual German equatorial mount with slow-motion controls
• Friction slip-clutch mechanism allowing manual pointing without loosening axis clamp levers
• Compact APP-TL130 aluminum tripod with accessory tray offering rigid observing stability
• Optical 6×30 finderscope, 1.25-inch erect-image prism, and NPL 20mm and 6.3mm eyepieces included

Precision Annealed 80mm Glass & Contrast Fidelity

The long f/11.4 optical train controls chromatic aberration across the visible spectrum, delivering high optical contrast on subtle lunar rilles and planetary details. Precision annealed Japanese optical glasses preserve thermal figure stability as ambient temperatures fall, supporting practical visual magnifications from 11.4x up to 160x.

Modular Advanced Polaris Chassis & Friction Slip-Clutch

Equatorial tracking along right ascension and declination is delivered through the modular Advanced Polaris mount, featuring internal worm gears and slow-motion control knobs. Its friction slip-clutch mechanism allows observers to push the telescope directly toward a target by hand without releasing locking levers, while the modular chassis supports motor drive upgrades.

• Advanced Polaris equatorial mount with slip-clutch system for immediate manual target acquisition
• Dual-axis slow-motion control knobs allowing precise manual centering of celestial objects
• Modular mount chassis engineered to accept optional motor drive upgrades and polar finders

Vixen AP Modular Equatorial System Five-Year Warranty

The Vixen A80Mf AC 80/910 Advanced Polaris AP Telescope is backed by a 5-year limited warranty against material and manufacturing defects. The complete factory package contains the A80Mf refractor OTA, AP equatorial mount head, APP-TL130 compact tripod with tray, 1.0 kg counterweight, 6×30 optical finderscope, 1.25-inch erect-image prism diagonal, and NPL 20mm and NPL 6.3mm eyepieces.