Omegon AC 70/900 EQ-1 Telescope

Description

Track planetary details across the night sky with the Omegon AC 70/900 EQ-1 Telescope manual equatorial refractor system. Designed in Germany, this f/12.9 astronomical telescope combines a 70mm (2.76 inches) aperture with a 900mm focal length. The Omegon AC 70/900 delivers 1.66 arcsecond Dawes resolving power and reaches down to a limiting visual magnitude of 11.0.

The Omegon AC 70/900 EQ-1 Telescope features a two-element air-spaced crown and flint glass doublet objective with multi-coated anti-reflective layers on all air-to-glass surfaces. Its rigid aluminum optical tube includes internal matte-black anti-reflection baffles to maximize visual contrast. Supported by an EQ-1 equatorial mount, counterweight system, and aluminum tripod, the total assembly weighs 6.50 kg (14.33 lbs), with the standalone optical tube weighing 1.70 kg.

Key Features of Omegon AC 70/900 EQ-1 Telescope

Engineered for solar system observation, this Omegon AC 70/900 refractor telescope pairs an elongated f/12.9 optical layout with a precision equatorial mount. Flexible slow-motion cables and high-contrast doublet optics allow smooth tracking across lunar craters and bright planetary targets like Jupiter.

• 70mm (2.76 inches) aperture with 900mm focal length and long f/12.9 focal ratio
• Two-element air-spaced crown and flint glass achromatic objective layout
• Multi-coated anti-reflective optical layers on all air-to-glass surfaces
• 0% secondary mirror obstruction for clear unobstructed refractor light transmission
• 1.25-inch rack and pinion focuser with manual tension adjustment screw
• EQ-1 German equatorial mount with counterbalance weight and accessory tray
• Dual flexible slow-motion tracking cables for manual celestial navigation
• 6×30 optical crosshair finder telescope fitted on fixed support bracket

Long-Focus Achromatic Doublet Optics

The two-element crown and flint glass objective utilizes an f/12.9 focal layout to suppress chromatic fringing naturally. Featuring zero central obstruction, this Omegon 70mm refractor yields crisp contrast across useful visual magnifications from 10x up to 140x.

EQ-1 Equatorial Mount & Slow-Motion Tracking

Compensating for Earth’s axial rotation requires steady manual tracking controls. The Omegon AC 70/900 EQ-1 includes an equatorial mount head with flexible slow-motion cables, allowing observers to track celestial objects along the right ascension axis smoothly. Supported by a lightweight aluminum tripod, this telescope provides a rigid platform for planetary viewing.

• EQ-1 equatorial mount head with counterweight shaft and balance mass
• Super 20mm and Super 10mm eyepieces paired with a 90-degree star diagonal mirror
• 6×30 optical crosshair finder for accurate manual target alignment

Omegon AC 70/900 Warranty

Designed in Germany, the Omegon AC 70/900 EQ-1 Telescope includes a 2-year limited warranty against material and manufacturing defects. The factory package contains the 70mm refractor OTA, EQ-1 mount head, aluminum tripod with tray, counterweight assembly, slow-motion tracking cables, 6×30 optical finder scope, 90-degree star diagonal, and two eyepieces.