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  • OrionOpticsUK ODK10 OrionOpticsUK ODK10

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OrionOpticsUK ODK10

Product code: ODK10

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Quick Overview

Dall-Kirkhams are compact and portable telescopes, equipped with an innovative optical design that offers exceptional quality for astrophotography at a great price. The built-in corrector create a big corrected field and it's therefore perfect also for large sensors camera. The ODK10 is the most compact Dall-Kirkham telescope by OrionOpticsUK and that, thanks to carbon fiber tube and weight of only 12 kg, can also be installed on compact and still portable mounts.

Each OrionOpticsUK telescope is built on order , delivery time is about 40 days after order confirmation.

Availability: Order


Regular Price: €5,718.00

Special Price €5,290.00

22% tax incl
if you pay by bank transfer €5,131.30


The Dall-Kirkham telescopes by OrionOpticsUK offer all the technical characteristics requested by amateur astronomers searching for the best telescope for long exposure astrophotography of deep-sky objects, but with a relatively long focal length. Thus it becomes possible to image the weakest and smallest details of distant galaxies, planetary nebulae and many other objects. Generally, when using a long focal length telescopes, recording faint objects is difficult since the focal ratio may become too long (for example, f/9 or f/10). Unlike other optical designs, Dall-Kirkham telescopes by OrionOpticsUK offer f/6.8 focal ratio, the perfect balance between brightness and magnification.

OrionOpticsUK ODK10

Large corrected field

These telescopes also offer a big correct field (even greater than 50mm) that lets you make the most from modern digital cameras with large sensor. In order to achieve these performance levels, inside the tube there's a corrector that flatten the field (without adding chromatic aberration). The optical system has been designed to offer a large back focus and thus enable the use of cameras with other accessories too (such as filter wheels or off-axis guiders).



Great optical quality

All the ODK telescope mirrors are made of glass Schott Borosilicate Low Expansion Suprax (virtually identical to Pyrex). OrionOpticsUK only produces high correction mirrors that are tested and certified using a Zygo laser interferometer, capable of measuring with high precision the produced optics.

Moreover, unlike other telescopes, the ODK models offer outstanding performance even for visual use or for high magnifications planetary objects imaging. The Dall-Kirkhams design facilitates collimation that is easier to perform than other optical designs. The high quality mechanical construction, for both of the primary mirror cell of the secondary supports, ensure high stability of collimation that can be performed quickly and accurately.



Soul Nebula (IC1848) in Cassiopeia by Sara Wager with ODK10 and QSI683 ws-g CCD camera



Carbon fiber tube and big 3" focuser

The tube is built of carbon fiber to reduce weight and to maintain a perfect rigidity. In addition, the carbon fiber has low thermal expansion coefficient to ensure ODK no change in focal point position in the long recording typical in deep-sky astrophotography. Furthermore, the open intubation ensures a short cool down time (also helped by the presence of 3 fan positioned in the primary mirror cell).

The ODK telescopes use the giant ACU-3S focuser, a 3" Crayford model with 1:10 offering large clear aperture (76,2mm) in order no to introduce vignetting. With a very accurate precision movement, it also offers a high load capacity to allow the use of large and heavy photographic instruments.



OrionOpticsUK ODK10 telescope - scope of delivery:

- ODK10 reflector optical tube (D: 250mm F:1700mm f/6.8)

Carbon fiber tube

3" Crayford focuser

- CNC 9 points primary mirror cell

Support ring



OrionOpticsUK ODK10

OrionOpticsUK ODK10 telescope with EAGLE installed on top bar, Feather Touch focuser installed instead of the original one with a proper adapter ring, SESTO SENSO robotic focusing motor and ECCO environmental computerized controller.

Technical specifications

Optical Design Modified Dall-Kirkham
Optics Primario ellittico, secondario sferico, con correttore
Diameter (mm) 250mm
Tube diameter 300mm
Focal Length (mm) 1700
Focal Ratio 6,8
Field flattener/corrector Included and not removable
Optical Tube Carbonio
Obstruction 96mm
Focuser 3" Crayford, micrometrico
Eyepiece holder 50,8mm with 31,8mm reducer
Weight 12Kg
Hard/soft case No

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