Omegon Pro Reducer 0.74x for 140/910 Triplet APO: your APO faster and wider
This reducer is part of a telescope: the Omegon Pro APO 140/910 Triplet OTA. It shortens the focal length by 0.74x and simultaneously corrects the field of view, adjusted to the lens design of this exact model.
For the owner of this tube, this is therefore the shortest route to a second, faster configuration: attach a reducer and the same telescope photographs wider fields in a shorter time.







Calculated with exactly this perspective
A universal reducer is always a compromise: it does not take into account the field curvature of your lens. This reducer is calculated for the Pro APO 140/910 Triplet OTA and therefore corrects exactly what that lens's curvature and residual aberrations contribute to.
The result is a reduced and corrected field: stars remain round into the corners, even on larger sensors.

What the factor 0.74x yields
After reduction, the telescope operates at 673 mm at f/4.8. The field of view becomes wider and the exposure time per shot shorter, so you can collect more signal in the same night.
The back focus follows the industry standard of 55 mm: common combinations of filter drawer, filter wheel, and camera fit without calculations.

Built for the largest APO in the line
The 140 mm triplet requires a reducer with a corresponding large optic and a wide M88 connection. At 900 grams, this is a hefty component; check that your focus ring supports the total weight of the reducer and camera.
Included
- Pro Reducer 0.74x
Featured accessories
Only for the Omegon Pro APO 140/910 Triplet OTA. The reducer is photographic; keep the backfocus of 55 mm exactly for round stars to the corners.
For whom yes and for whom no
- ✓ Owners of the Omegon Pro APO 140/910 Triplet OTA
- ✓ Astrophotographers who want shorter exposure times
- ✓ How to search for expansive fields without a second telescope
- ✗ Other telescopes, also within the Pro line: each reducer belongs to a model
- Visual use: this reducer is for photography
Specifications
| Suitable for | Omegon Pro APO 140/910 Triplet OTA |
| Reduction factor | 0,74x |
| Focal length after reduction | 673 mm (f/4.8) |
| Telescope silk | M88 x 1 |
| Camera side | M48 |
| Backfocus | 55 mm |
| Visually deployable | No |
| Weight | 900 g |
| Material | Aluminum, black |
You can find more correctors and reducers for this brand on the Omegon brand page.











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