Omegon Pro APO 130/650 Quintuplet – Full-Frame f/5 Astrograph

The Omegon Pro APO 130/650 Quintuplet is a high-performance 130mm f/5 apochromatic astrograph designed for serious deep-sky astrophotography with modern large-format cameras. Its five-element optical system incorporates three ED glass elements and an integrated field correction system to deliver a flat, highly corrected imaging field across sensor diagonals of up to 55mm.

With a fast 650mm focal length and f/5 focal ratio, the Omegon 130/650 combines excellent light-gathering ability with relatively short exposure times, making it particularly well suited to nebulae, galaxies, star fields and large deep-sky mosaics.

Designed for Full-Frame and Large-Sensor Astrophotography

Large imaging sensors place enormous demands on telescope optics. A telescope can produce excellent stars in the centre of the frame yet suffer from field curvature, chromatic aberration or distorted stars towards the corners.

The Omegon Pro APO 130/650 ED3Q has been engineered specifically to overcome this problem. Its quintuplet optical system provides a fully corrected 55mm image diagonal, comfortably covering a full-frame sensor while providing additional room for larger imaging formats.

The result is a large usable field with sharp stellar profiles extending towards the edges of the image – ideal for demanding deep-sky imaging projects where optical performance across the entire sensor matters.

Five-Element Optics with Three ED Elements

At the heart of the telescope is an advanced five-element apochromatic optical system. Three elements use ED glass to minimise chromatic aberration and help maintain accurate colour reproduction around bright stars.

The quintuplet configuration also provides integrated field correction, reducing the need for a separate external field flattener and creating a cleaner, more streamlined imaging train.

• 130mm aperture for excellent deep-sky light gathering
• 650mm focal length for versatile wide-field imaging
• Fast f/5 focal ratio for efficient image acquisition
• Five-element quintuplet design
• Three ED glass elements for excellent colour correction
• 55mm fully corrected image field
• Integrated field correction – no separate corrector required

Fast f/5 Performance for Deep-Sky Imaging

The f/5 focal ratio makes the Omegon Pro APO 130/650 particularly attractive for astrophotographers who want to gather deep-sky data efficiently. Compared with slower optical systems, the fast astrograph design helps achieve strong signal in shorter total exposure times.

Its combination of 130mm aperture and 650mm focal length provides a versatile field of view suitable for many popular imaging targets, from expansive emission nebulae and star-forming regions to galaxies, clusters and detailed deep-sky mosaics.

Integrated Camera Rotation and Tilt Adjustment

Building a high-performance imaging system requires more than excellent optics. Camera orientation and sensor alignment can have a significant effect on the finished image.

The Omegon 130/650 therefore includes integrated rotation and tilt adjustment. Camera rotation makes framing your target easier without disturbing the mount, while the tilt mechanism provides additional adjustment when fine-tuning sensor alignment.

This is especially useful with large, high-resolution sensors where even small amounts of tilt can become visible towards the edges of the frame.

Heavy-Duty 3.7-Inch Rack-and-Pinion Focuser

Modern astrophotography systems can become heavy once a cooled astronomy camera, filter wheel, off-axis guider and adapters are installed. The Omegon Pro APO 130/650 uses a substantial 3.7-inch rack-and-pinion focuser designed to support imaging payloads of up to 5kg.

A 1:10 fine-focus reduction provides the precision needed to achieve critical focus, while the focuser offers a 42mm adjustment range and 67mm clear aperture.

The camera side provides a choice of threaded connections, including M48, M54 and M68, allowing the telescope to be incorporated into a wide variety of astrophotography configurations.

Built for Modern Imaging Rigs

The telescope includes a robust mechanical mounting system with tube rings, a Losmandy-style dovetail plate and a carrying handle. The handle incorporates an Arca-Swiss compatible rail, providing a convenient mounting position for compatible accessories.

A Vixen/Sky-Watcher style finder base is also provided, giving additional flexibility for guidescopes, finder systems and other accessories.

Interferometrically Tested Optics

Optical quality is particularly important with a large, fast astrograph. Each instrument is interferometrically tested as part of the quality-control process, helping ensure the telescope is capable of delivering the performance expected from its advanced optical design.

Who Is the Omegon Pro APO 130/650 For?

This is primarily an astrophotography telescope rather than a general-purpose beginner's refractor. It is particularly well suited to experienced imagers and observatory installations using demanding camera systems.

It is an excellent choice for astrophotographers looking for:

• A fast 130mm APO astrograph
• Excellent compatibility with full-frame astronomy cameras
• A corrected field substantially larger than standard full frame
• Integrated field correction without a separate flattener
• ED optics with excellent chromatic correction
• Camera rotation and tilt adjustment
• A substantial focuser capable of carrying heavy imaging equipment
• A premium platform for nebula and galaxy astrophotography

Omegon Pro APO 130/650 Specifications

What's Included?

• Omegon Pro APO AP 130/650 Quintuplet optical tube assembly
• Two tube clamps
• Losmandy-style mounting plate
• Carrying handle with accessory mounting provision
• Integrated corrector
• Dew shield

A Serious 130mm Astrograph for Demanding Imaging

The Omegon Pro APO 130/650 Quintuplet brings together a fast f/5 optical system, three ED elements, a large 55mm corrected image circle, integrated field correction and a heavy-duty imaging focuser in a telescope designed from the outset for astrophotography.

For imagers moving to full-frame cameras or building a permanent deep-sky imaging system, it provides the optical and mechanical features required for a sophisticated modern astrophotography rig.

Available from Dark Clear Skies – UK astronomy equipment specialists.