Omegon Pro Field Flattener 2-inch: the heavier flattener for longer refractors
Deze Pro-flattener richt zich op refractors met 500 tot 1000 mm brandpuntsafstand en f/5 tot f/9, het bereik van de meeste middelgrote APO’s. Hij maakt het gebogen beeldveld vlak zonder de brandpuntsafstand te veranderen: dezelfde beeldschaal, maar scherp tot in de hoeken.
The wide M68 telescope side suppresses vignetting on large sensors, where a narrower flattener would already shadow the corners before the optics correct them.







Working distance per focal length
The correct sensor distance is between 87 and 106 mm, depending on your refractor's focal length. Shorter focal lengths require the shorter distance; determine yours once with test shots on the corner stars.

M68 to M48
The telescope side is M68; an adapter to M48 is included, so standard camera adapters and 2-inch filter chains fit directly. The optical length with adapter is approximately 55 mm.

Fully multicoated
The coating keeps the contrast high and prevents reflections from bright field stars.
Included
- Pro field flattener
- Adapter to M48
Featured accessories
For refractors from f/5 to f/9 with 500 to 1000 mm focal length and an M68 or via the adapter M48 system.
For whom yes and for whom no
- ✓ Bezitters van middelgrote APO’s zonder modelflattener
- ✓ Photographers with large sensors who want to avoid vignetting
- To maintain aspect ratio while correcting distortion
- ✗ Refractors outside the 500 to 1000 mm range
- Anyone who wants to shorten: choose a model-specific Pro Reducer
Specifications
| Suitable for | Refractors f/5 to f/9, 500 to 1000 mm |
| Magnification factor | 1x (no abbreviation) |
| Telescope silk | M68 |
| Camera side | M48 (adapter included) |
| Backfocus | 87 to 106 mm, depending on focal length |
| Optical length | Approximately 55 mm with adapter |
| Length | 80 mm |
| Coating | Fully multicoated |
You can find more correctors and reducers for this merk on the Omegon merk Page.











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