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Second Hand Orion Optics OMC140 OTA Just Serviced

Price:  £600.00 (Inc. 20% VAT)Earn 600 Loyalty Points

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Generally In Stock, Please Confirm Before Ordering  

Generally In Stock, Please Confirm Before Ordering

Model:  SHOMC140
Brand:  Orion Optics UK

Second Hand Orion Optics OMC140 OTA Just Serviced
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 Second Hand Orion Optics OMC140 OTA Just ServicedSecond Hand Orion Optics OMC140 OTA Just Serviced 

Here we have the Orion Optics UK OMC140 Mak OTA that has just been serviced by Orion Optics. The primary mirror has been resilvered and the coatings have been re applied. This is a superb scope that is ideally used on the moon, planets and bright deep sky objects. A 2" diagonal is also included as well as a synta style finderscope base to accept many standard finderscopes and red dot finders. A Telrad base is also included and attached onto the tube already. 

Full Specification:

Why is the OMC140 so special? and why has it built up a reputation over the last decade or so? . . . quite simply it is a quality instrument as far as optics are considered but, it is also mechanically excellent and stable and . . . Development, development and development, all done in conjunction with experienced amateurs and professional astronomers and two very experienced optics designers, Barry Pemberton and Harrie Rutten.
Detail of OMC Back CellThe OMC140 came into being as a challenge in achieving a wide field, photo visual Maksutov Cassegrain with incredible stability and versatility.
The project was a success and we judge that by considering the large number of these compact instruments we have in use in every continent of the World.

Why is it so successful? The design is not a standard all spherical one with a main mirror the same size as the corrector. That is the traditional Maksutov design but, it lacks off axis performance and suffers from coma. The OMC140 has an ellipsoidal primary which is over 12mm larger in diameter than the Maksutov corrector. This added aspherisation of the primary allows much wider flatter fields to be achieved but it virtually eliminates coma.

Aperture: 140mm
Primary Mirror Diameter: 150mm
Secondary Mirror Diameter: 44mm
Focusing Method: 100% zero image shift micrometer
Mirror Coating: Hilux on both mirrors
Tube Length: 450mm
Focal Length: 2000mm
Focal Ratio: f/14
Tube Weight: 3.5kg
Mount Fixing: Vixen style dovetail
Wavefront Optics: 1/4PV

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Rother Valley Optics


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Rother Valley Optics Ltd is registered in England and Wales 04762707. Registered Office: 21 Station Road, Kiveton Park, Rotherham, S26 6QP. Rother Valley Optics Ltd acts as a credit broker only. Rother Valley Optics Ltd are authorised and regulated by the Financial Conducts Authority. Credit provided subject to age and status..

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- - - Rother Valley Optics Ltd

01909 774 369