The Omegon 110/660 Pro APO is a fast ED refractor with premium double-glass optics, designed for astrophotographers demanding maximum sharpness, contrast, and stability. With a 110 mm aperture and weighing only 4.8 kg, this apochromat is both powerful and portable – ideal for mobile setups, observatories, or as a wide-field system with full-frame cameras.



✓ FPL-53 and S-NBM51 ED glass for color-free images ✓ Carbon tube: light, thermally stable and durable ✓ 2.7″ Power Linear Crayford focuser with 1:10 micro-adjustment ✓ Fully 360° rotatable – perfect for framing and framing rotation ✓ Suitable for visual and photographic use with heavy camera setups ✓ Supplied with aluminum carrying case and adapters
This double-lens apochromat uses advanced ED glass (FPL-53 + S-NBM51) typically only found in fluorescence microscopes. The result? Pinpoint stars, zero chromatic aberration, and exceptional contrast – from Saturn’s rings to subtle nebula structures.
The fast f/6 focal ratio combined with 110 mm aperture makes it an ideal system for deep-sky wide-field photography. Think: the Veil Nebula, Andromeda, Rosette Nebula and more – even at full frame.
Technical Specifications
Feature | Value |
---|---|
Type | Apochromatic refractor |
Objective | Doublet (FPL-53 + S-NBM51) |
Aperture | 110 mm |
Focal length | 660 mm |
Aperture ratio | f/6 |
Back focus | 150 mm |
Focuser | 2.7″ hybrid Crayford with 1:10 reduction, rotatable |
Connections | 2 “, 1.25”, M74x1.0 |
Tube material | Carbon (with felt dew cap) |
Tube length | 55 cm (retracted), 67 cm (extended) |
Tube diameter | 114 mm |
Dew shield diameter | 134 mm |
OTA weight | 4.8 kg |
Weight including case | 8.5 kg |
Transport case | Aluminum, with cut-out foam |
Application and Use
This telescope excels in:
- ✓ Astrophotography of deep-sky objects with full-frame cameras
- ✓ Visual observation with razor-sharp star fields
- ✓ Observations of moon, planets and nature (also in daylight with inversion prism)
- ✗ Not suitable for solar observation without special filters
- ✗ Not intended for absolute beginners – this is high-end equipment
The focuser holds up to 10 kg without shift and rotates smoothly without play. This enables precise focusing and perfect image composition, even with heavy astrophotography setups including filter wheels and flatteners.
Expert Advice
The Omegon 110/660 Pro APO ED is one of the most balanced telescope tubes in its class: visually brilliant, photographically uncompromising. The carbon construction and advanced ED optics ensure razor-sharp results in any condition – without temperature-induced focus shift. Combine this OTA with a suitable field flattener or reducer for flat images across the entire sensor.
Note: this OTA is supplied without dovetail rail. We recommend the Losmandy plate (art. 44699) with 4-inch screws (art. 64164) for mounting.
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