Omegon Pro APO AP 104/650 ED OTA + 2” Field Flattener

Description

Astrophotographers demanding flat field correction across modern camera sensors rely on the Omegon Pro APO AP 104/650 ED OTA + 2” Field Flattener bundle for wide-field deep-sky imaging. Designed in Germany, this f/6.2 apochromatic refractor features a 104mm (4.09 inches) aperture and 650mm focal length, delivering 1.12 arcsecond Dawes resolving power and reaching magnitude 11.8 for high-resolution imaging setups.

The Omegon Pro APO AP 104/650 ED OTA + 2” Field Flattener incorporates an air-spaced triplet objective featuring FPL53 extra-low dispersion glass coupled with high-index lanthanum elements. Treated with SMC ultra-wideband multi-layer coatings, its machined aerospace-grade aluminum tube houses internal micro-baffles to eliminate stray light. Equipped with a heavy-duty 2.7-inch hybrid Linear True-Track focuser and CNC tube rings on a Losmandy plate, the 5.10 kg (11.24 lbs) system ensures zero focal distortion.

Key Features of Omegon Pro APO AP 104/650 ED OTA + 2” Field Flattener

Engineered for edge-to-edge pinpoint astrophotography, this Omegon Pro APO 104/650 refractor bundle pairs FPL53 lanthanum triplet optics with a dedicated 2-inch field flattener. Its rigid 2.7-inch linear focuser and Losmandy mounting plate deliver exceptional mechanical stability for modern camera sensors.

• 104mm (4.09 inches) aperture with 650mm focal length and fast f/6.2 optical speed
• Air-spaced triplet objective combining FPL53 extra-low dispersion and lanthanum glass
• SMC ultra-wideband multi-layer anti-reflective dispersion matrix coating system
• Dedicated 2-inch optical field flattener with M48 camera adapter spacer ring
• 2.7-inch hybrid Linear True-Track focuser with 1:10 micro-focus drive hub
• 0% secondary mirror obstruction for unobstructed apochromatic light transmission
• CNC-machined dual ring clamps mounted to a Losmandy-style heavy dovetail plate
• Dual quick-release mounting brackets for autoguider hardware and lock-key aluminum case

FPL53 Lanthanum Triplet Optics & Dedicated 2-Inch Flattener

The triplet optical train combines FPL53 glass with lanthanum elements to eliminate chromatic fringing completely. Paired with the dedicated 2-inch corrective lens element, this Omegon Pro APO refractor delivers flat, aberration-free star fields across useful magnifications from 15x up to 208x.

2.7-Inch Linear True-Track Focuser & Losmandy Dovetail

Carrying heavy imaging trains requires a rigid focusing mechanism without mechanical slippage. The Omegon Pro APO 104/650 features a 2.7-inch hybrid Linear True-Track focuser equipped with a 1:10 micro-reduction drive and heavy mechanical clamping rail. Supported by CNC rings and a Losmandy dovetail plate, it provides a stable astrophotography platform.

• 2.7-inch hybrid Linear True-Track focuser with smooth 1:10 micro-focus control
• CNC-machined tube rings attached to a Losmandy universal mounting plate
• Heavy-duty aluminum lock-key storage case for secure field transportation

Omegon Pro APO AP 104/650 Warranty

The Omegon Pro APO AP 104/650 ED OTA + 2” Field Flattener bundle is backed by a 2-year limited warranty against manufacturing defects. The complete factory package contains the 104mm triplet ED APO OTA, dedicated 2-inch field flattener, M48 spacer ring, CNC tube rings, Losmandy plate, and lock-key aluminum case.