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Telescopes > Pro APO > Omegon Apochromatic refractor Pro APO AP 66/400 ED OTA
Product no.: 14173

Apochromatic refractor Pro APO AP 66/400 ED OTA

$ 669.00 Sale price:
$ 539.00 incl. VAT, plus shipping costs
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Express shipment possible for delivery the day after tomorrow, 31.03.2023!

Product description

More about the series Pro APO...

New: This apochromatic refractor is now being shipped with a new improved linear Crayford focuser. You will benefit from its high load capacity and high precision.

This apochromatic refractor produces an especially colour-true and high-contrast image – just right for more discerning observers!

Naturalists and amateur astronomers who attach special importance to the purity of colour reproductions are very well-served by the Omegon ED 66 APO. Even at approx. 100 times magnification, annoying color aberrations no longer occur. The double-lens ED objective satisfies the most exacting requirements

Areas of application

The Omegon 66 is a very fine, compact device for discriminating observers of the natural world. You can see the finer points in the plumage of birds, or observe animals at a distance and marvel over the details that are revealed.

The small, compact device delivers excellent performance in the domain of stargazing as well. Simply panning the sky with the device is a pleasure. But details on the moon and planets are also clearly visible with this device.

Included in the scope of delivery are a 360° rotatable Cray focuser with 1:10 reduction and an aluminium transport case.

It is not only important which telescope you buy, but also where you buy it.

We provide extra help:

  • We are a leading telescope dealer and know these instruments like the back of our hands.
  • We are always very happy to offer our assistance after your purchase, should you encounter any problems with your telescope’s setup or operation.
  • Our ‘Telescope Basics’ booklet - an 80-page beginner's guide for our telescopes – is provided free of charge with every telescope we sell.

Our expert comment:

The instrument absolutely amazed us during testing. The optics gave an image virtually free of chromatic aberration. Even the finest details in a pine cone could be seen.

At 20X magnification, the 66 ED apo showed good sharpness across the entire field of view (used in conjunction with an Omegon LE 18mm eyepiece). The telescope can be mounted onto any camera tripod (1/4" thread) and used for nature-watching.

We also found the mechanics to be excellent: the telescope comes with a high-quality 1:10 Crayford focuser. The focuser allows precise focusing even at high magnifications. With 6cm of focus travel, the near point is quite close. This means that the Omegon 66 ED can be described as universal telescope that is also useful for nature watching.

Our tip for sky watchers:

2 inch eyepieces can be used in combination with a SC star diagonal.

Our tip for nature watchers:

The instrument also makes a very good spotting scope! We recommend this eyepiece with a erecting prism for seeing an upright image.

Our tip for photographers:

The telescope can be turned into a telephoto lens with high edge-definition. To do this you will need the following products: SC adapter for 2" star diagonal, field flattener for refractors and a camera-specific T-2 ring.

Tip: The telescope has a SC thread under the eyepiece holder. You get better aperture illumination using this SC thread than at 1.25 inches. We therefore recommend this camera adapter.

(Anderl Rodoschegg)



Type of build
Aperture (mm)
Focal length (mm)
Aperture ratio (f/)
Resolving capacity
Limit value (mag)
Light gathering capacity
Max. useful magnification
Tube construction
Full tube
lens design


Type of build
Connection ( to eyepiece)
2 (2")
Gear reduction
1:10 Fine movement


Mounting type
no mount
GoTo control
Type of build

Included accessories

Eyepiece adaptor
1,25" & 2"


Special recommendation
Total weight (kg)

Area of application

Moon & Planets
Nebulae & galaxies
Nature Observation
yes (very good)
not recommended (Only with appropriate Sun filter)

Recommended for


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*All prices include VAT plus shipping costs.

Omegon Apochromatic refractor Pro APO AP 66/400 ED OTA

Crayford focuser with 1:10 reduction ratio

Omegon Apochromatic refractor Pro APO AP 66/400 ED OTA

Practical storage and transport case

Omegon Apochromatic refractor Pro APO AP 66/400 ED OTA
NGC7000 - Michele Russo - AP 66/400 ED OTA, 120x300 Sec., Canon 700D
Omegon Apochromatic refractor Pro APO AP 66/400 ED OTA

The Alps (from about 70 km away), photographed from our office with an Omegon 66 ED APO telescope and Canon EOS 550D camera. (c) Alexander Olbrich, Landsberg am Lech, Germany.

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