Omegon Pro CC 154/1848 Cassegrain OTA

Description

Screen planetary targets and capture high-resolution lunar details with the Omegon Pro CC 154/1848 Cassegrain OTA pure reflector optical tube assembly. Designed in Germany, this long f/12 true Cassegrain telescope features a 154mm (6.06 inches) aperture and an 1848mm focal length. The Omegon Pro CC 154/1848 provides 0.75 arcsecond Dawes resolving power and reaches magnitude 12.7.

The Omegon Pro CC 154/1848 Cassegrain OTA utilizes a parabolic primary mirror and a hyperbolic secondary mirror crafted from premium quartz with near-zero thermal expansion. Enhanced multi-layer aluminum coatings provide 94% reflectivity across all optical glass surfaces. Its heavy-gauge steel cylinder shell contains internal anti-reflection stray light baffles, direct collimation screws, and a 2-inch dual-speed Crayford focuser, keeping total optical tube weight at 5.40 kg (11.90 lbs).

Key Features of Omegon Pro CC 154/1848 Cassegrain OTA

Built for high-contrast planetary imaging and lunar topography screening, this Omegon Pro 154mm Cassegrain OTA pairs an f/12 focal ratio with zero-expansion quartz optics. Its pure mirror layout and dual-speed focuser deliver razor-sharp off-axis definition without requiring corrector lenses.

• 154mm (6.06 inches) aperture with 1848mm focal length and long f/12 focal ratio
• True Cassegrain optical layout with parabolic primary and hyperbolic secondary mirrors
• Premium quartz mirror substrates with near-zero thermal expansion coefficients
• Enhanced multi-layer aluminum optical coatings achieving 94% enhanced reflectivity
• 50mm secondary mirror obstruction (32.47% diameter, 10.54% area)
• 2-inch dual-speed Crayford friction drive focuser with 1:10 micro-gear reduction
• Fixed primary mirror substrate cell eliminating image shift during focus adjustments
• Vixen-style dovetail mounting rail and three threaded focuser extension tubes included

True Cassegrain Optics & Pure Color Fidelity

The pure two-mirror optical design contains no refracting glass elements, completely eliminating chromatic dispersion across planetary disks and lunar rilles. With fixed mirror cells that prevent mirror flop, this Omegon Pro Cassegrain supports magnifications from 22x up to 308x.

2-Inch Dual-Speed Crayford Focuser & Extension Tubes

Achieving exact focus on fine lunar details requires a smooth mechanical drawtube. The Omegon Pro CC 154/1848 features an external 2-inch Crayford focuser with 1:10 micro-reduction, bypassing internal mirror-shift mechanisms entirely. Included extension tubes allow flexible backfocus spacing when adapting visual diagonals, planetary cameras, and filter wheels.

• 2-inch dual-speed Crayford focuser with 1:10 planetary gear reduction
• Two 25mm and one 50mm extension tubes for versatile backfocus configurations
• Pre-mounted Vixen-style dovetail rail for direct connection to astronomy saddles

Omegon Pro CC 154/1848 Warranty

The Omegon Pro CC 154/1848 Cassegrain OTA comes backed by a 2-year limited warranty against material and manufacturing defects. The complete factory package contains the 154mm Cassegrain optical tube assembly, pre-mounted Vixen-style dovetail bar, 2-inch Crayford focuser, 1.25-inch adapter, two 25mm extension tubes, and one 50mm extension tube.