Omegon Apochromatic refractor Pro APO 130/650 ED3Q OTA (86135)

Omegon Apochromatic Refractor Pro APO 130/650 ED3Q OTA (86135)

This astrograph is designed specifically for large camera sensors. If you use a full-frame DSLR or a large CCD sensor, you may have noticed that many optics are sharp in the center but lose clarity toward the edges. The Omegon Pro APO 130/650 Quintuplet solves this problem by delivering pinpoint stars across the entire field of view, right to the corners.

Key Advantages at a Glance

• 55 mm fully corrected image circle for even full-frame illumination

• ED quintuplet design with five lenses, including three ED elements for color-true images

• Fast f/5 aperture ratio for bright images and short exposure times

• Integrated rotation and tilt adjustment for precise framing

• Large 3.7" focuser that securely supports heavy cameras

• Multiple connection options: M48, M54, and M68 (male and female)

• Carrying handle with integrated Arca-Swiss rail for mounting accessories

Certified Optical Quality

Each instrument is interferometrically tested to ensure it meets strict performance standards. This guarantees that the telescope delivers its full optical potential in real-world astrophotography.

Sharpness Across the Entire Sensor

Large sensors demand high optical precision. The 130/650 Quintuplet is corrected for a 55 mm image diagonal, providing evenly illuminated and sharply defined stars even at the edges. There is no noticeable loss of sharpness or contrast toward the corners.

The quintuplet optical system, with three ED elements, surpasses traditional triplet designs. It corrects spherical aberration, chromatic aberration, and field curvature more effectively, resulting in a wide, high-contrast, and fully usable image field.

ED Optics for Color-Pure Imaging

Three ED lenses form the core of this refractor. They minimize chromatic aberration and eliminate distracting color fringing around bright stars. The result is neutral, high-quality imaging that simplifies post-processing and enhances overall clarity.

Integrated Rotation and Tilt Adjustment

If your subject is not ideally positioned on the sensor, the built-in rotation mechanism allows quick and precise adjustment without moving the mount. The integrated tilt adapter provides additional fine-tuning, which is especially useful for mosaics or when perfect mount alignment is not possible.

Large 3.7" Focuser for Heavy Imaging Setups

The robust rack-and-pinion focuser supports demanding imaging equipment such as heavy cameras, filter wheels, and off-axis guiders. The 1:10 fine-focus reduction enables precise focusing, while the stable design maintains position even in cold conditions. Generous backfocus allows flexible camera configurations without constant readjustment.

Flexible Connection Options

The telescope offers multiple threaded connections, including M48x0.75, M54x0.75, and M68x0.75 (male and female). This ensures compatibility with a wide range of cameras, filters, and accessories.

Designed for Advanced Astrophotography

Whether capturing wide-field images, detailed nebula structures, or deep-sky projects with large sensors, this astrograph provides the precision required for demanding imaging work. It is a professional tool for astrophotographers who expect full control over every detail.

Scope of Delivery

• Omegon Pro APO 130/650 Quintuplet OTA

• Two tube clamps

• Losmandy-style mounting plate

• Carrying handle

Technical Specifications

Optics
Type: Refractor
Design: Apochromat, Quintuplet
Aperture: 130 mm
Focal length: 650 mm
Focal ratio: f/5
Resolving capacity: 1.06
Limiting magnitude: 12.3
Light gathering power: 340x
Maximum useful magnification: 260x
Fully corrected field: 55 mm
Coating: Fully multi-coated (FMC)
Stray light baffles: Yes
Tube material: Aluminum
Tube construction: Full tube
Tube length: 785 mm
Dew cap diameter: 186 mm

Focuser
Design: Rack and pinion
Fine focusing reduction: 1:10
Rotatable: Yes
Tilt adapter: Yes
Free aperture: 67 mm
Backfocus: 65 mm
Load capacity: 5 kg
Adjustment range: 42 mm
Camera-side connections: M48x0.75m, M54x0.75m, M68x0.75m and female M68x0.75
Eyepiece connection: 2 inch

Mount
Design: OTA (no mount included)

Included Accessories
Prism rail: Losmandy style
Tube clamps: Yes
Dew shield: Yes
Carrying handle: Yes
Finder base: Vixen/Skywatcher compatible
Corrector: Integrated

General Information
Series: Pro APO
Total weight: 11.5 kg
Shipping weight: 14 kg

Recommended Applications
Astrophotography: Yes
Nebulae and galaxies: Yes
Moon and planets: No
Nature observation: No
Solar observation: Not recommended

Recommended For
Beginners: No
Advanced users: Yes
Observatories: Yes