The Omegon 66/400 Pro APO is a compact, high-quality ED refractor combining mobility and optical precision. Weighing only 1.6 kg, this apochromat is perfect for astrophotographers who travel or seek an ultra-widefield system for the night sky. Thanks to the use of FPL-53 glass, this telescope delivers razor-sharp images – without chromatic aberration.
✓ ED objective with FPL-53 glass for color-free images ✓ Only 1.6 kg – perfect for travel or trackers like Star Adventurer ✓ 2″ Crayford focuser with fine adjustment and 360° rotation ✓ Also suitable for nature observation or solar use (with filter) ✓ Full metal construction, compact and robust
The 66 mm aperture and 400 mm focal length (f/6) make this a very fast system. Combined with a flattener or reducer, you can capture impressive widefield deep-sky images on DSLR or CMOS camera – without vignetting.
Technical Specifications
| Property | Value |
|---|---|
| Type | Refractor |
| Optical design | Doublet Apochromat |
| Glass | FPL-53 ED |
| Aperture | 66 mm |
| Focal length | 400 mm |
| Focal ratio | f/6 |
| Max. magnification | 132x |
| Focuser | 2″ Crayford with 1:10 reduction, 360° rotatable |
| Connections | 2 “, 1.25”, T2-thread |
| Tube length | approx. 31 cm (retracted) |
| Tube material | Aluminum |
| OTA weight | approx. 1.6 kg |
| Accessories | 2 tube rings, dovetail, carrying case |
Application and Use
This apochromat excels in:
- ✓ Astrophotography of nebulae, star fields and large objects
- ✓ Daylight observation with correct image orientation (optional prism)
- ✓ Use while traveling, at festivals, mountain locations and as guidescope
- ✗ Not intended for high-magnification planetary viewing
- ✗ No visual deep-sky work without eyepiece set
Combine the 66/400 with a tracker like the Sky-Watcher Star Adventurer and a flattener for full-frame photography without distortion. Also usable as a premium finder or guider on larger systems thanks to its light weight and optical sharpness.
Expert Advice
The Omegon 66/400 Pro APO is a true all-rounder in miniature format: perfect for astrophotography on the go or for those just starting with widefield imaging. It delivers premium image quality in a handy format and is compatible with virtually any photographic accessory. Ideal for those wanting to take their first astrophotos with DSLR or dedicated CMOS camera.
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