Omegon Pro APO AP 85/510 Refractor - High performance apo for serious astrophotography
The Omegon APO AP 85/510 is built for astrophotographers who leave nothing to chance. This 85 mm apochromatic delivers color-clean, sharp images with high contrast. Its compact size allows you to use it on a lighter mount. Ideal for mobile astrophotography, without sacrificing image quality.
Triplet ED optics with Japanese FCD-100 glass
The heart of this telescope is the triplet lens with Hoya FCD-100 ED glass. This glass has an extremely low color dispersion. That means: no annoying purple edges and stars that remain truly white. Nebulae, galaxies and planets come into focus clearly and faithfully, even at high magnifications. This keeps your images sharp from center to edge.

More contrast, less stray light
The inside of the tube features smart light shielding. Reflections are not given a chance. As a result, you can see faint details better and dark areas remain really dark. You notice this immediately, both visually and on your recordings.
2.5″ hybrid focuser for heavy-duty cameras
The large 2.5-inch focuser combines Crayford technology with a rack and pinion. This feels smooth and remains stable even with heavy camera setups up to 10 kg. The 1:10 microfocus lets you focus with extreme precision. So your focus is just right, even in long exposures.

Smart design for on the go and on the mount
The integrated carrying handle fits comfortably in the hand and simultaneously serves as a mounting rail for additional accessories, such as a tracking scope. The telescopic dew hood keeps condensation out and slides in for transport. Everything feels solid and well thought out.
Our tip
Combine this apo with a flattener or reducer for a perfectly flat field of view. This is how to get the most out of modern cameras and sensors.
What you see with it
✓ Nebulae and galaxies: sharp and contrasty
✓ Planets: fine details and pure colors
✓ Astrophotography: ideal for high quality shots
✗ Nature observation: not recommended
✗ Sun: only with suitable sunscreen
Specifications
Optics
| Feature | Description |
|---|---|
| Type | Refractor |
| Design | Apochromat |
| Aperture (mm) | 85 |
| Focal length (mm) | 510 |
| Aperture ratio (f/) | 6 |
| Resolution (”) | 1,35 |
| Limit value (mag) | 11,4 |
| Light output | 150× eye |
| Max. useful magnification | 170× |
| Lens Design | Triplet |
| Glass material | Hoya FCD-100 |
| Coating | FMC |
| Scatter light baffle | Yes |
| Tube length (mm) | 440 |
| Tube diameter (mm) | 95 |
| Tube weight (kg) | 4 |
| Material tube | Aluminum |
| Dew cap diameter (mm) | 105 |
Focuser
| Feature | Description |
|---|---|
| Design | Rack & Pinion |
| Ocular connection | 2″ |
| Camera connection | M63x1 |
| Fine adjustment | 1:10 microfocus |
| Carrying capacity | 10 kg |
| Ring clamp | Yes |
Mount
| Feature | Description |
|---|---|
| Type of mount | Without mount |
Included accessories
| Section | Description |
|---|---|
| Tube Rings | CNC fabricated |
| Dovetail | Vixen-style |
| Handle | Yes (also mounting rail) |
| Accessory shoe | Vixen/Skywatcher |
| Oculai adapter | 2″ → 1,25″ |
| Corrector | Not included |
| Transport case | No |
General
| Feature | Description |
|---|---|
| Series | Pro APO |
Observation goals
| Feature | Yes/No |
|---|---|
| Astrophotography | Yes |
| Moon & Planets | Yes |
| Nebulae & galaxies | Yes |
| Nature observation | No |
| Sun | No (only with filter) |
Recommended for
| Feature | Yes/No |
|---|---|
| Beginners | No |
| Advanced | Yes |
| Observatories | Yes |





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