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Explore Scientific HR Coma Corrector

Explore Scientific HR Coma Corrector

The Explore Scientific ES HR Coma Corrector is one of the highest quality units available on the market today. Its four element design yields a superbly corrected field with coma correction right to the edge of the field. This system is designed to work on Newtonian telescopes down to an amazing f/3 focal ratio. The Explore Scientific Coma Corrector has a 2" integrated helical focuser which allows the adjustment of spacing between the corrector's rear element and eyepieces or an imager's sensor plane - eliminating (in many cases) the need for the need to invest in additional spacer rings to acheive optimal results.

To use the HR Coma Corrector visually, you need to have at least 32mm spare inward travel at your focuser. Photographically, the Explore Scientific ES HR Coma Corrector shifts the focus outward by about 35mm - if you have no problem focusing your camera at prime focus, this unit should work without the need for extension tubes or modification.

Specifications:
2" fitting
Mitigates or eliminates coma, field-curvature and astigmatism in Newtonian Telescopes
Diffraction limited performance on axis and in the field
Flattens the field
Works on a wide variety of focal lengths, down to f/3
Four-lens construction

Customer Reviews

  Very satisfied  I bought this coma corrector for my Quattro Skywatcher f/4 telescope. I choose this item instead of the stock Skywatcher coma corrector because it works not only for astrophotography but also for visual. I've tested it both for astrophotography and visual and it works very well!   (04/05/2018) michele - Stockport


Our standard delivery charge for most of the UK is £2.95. All orders are shipped promptly, lower value items are sent Royal Mail 1st class and higher value or larger goods are shipped via reputable courier. All goods are shipped fully insured with FEDEX, UPS, DPD and Royal Mail, we do not use budget courier services, please note we can only ship to UK mainland addresses. We are not able to ship to forwarding agents or PO boxes.

Our Order Lookup system (see very top of each page for the icon and link) updates the order status in real time for you - simply by entering your order number and postcode..

We hold stock, dozens of telescopes and literally thousands of accessories that we ship out each business day, normally orders received before lunch are shipped that business day. We also direct ship from our UK suppliers, this means we have access to thousands of products that can ship fast to our customers.

Deliveries to UK mainland addresses are all shipped with fully insured premium services for £2.95, *some exceptions apply including many AB, FK, HS, IV, KA, KW, PA, PH, ZE postcodes. We will quote delivery charges to these areas where applicable prior to shipping (this does not normally affect lower value items shipped by Royal Mail).

You must inform us within one working day if the goods are lost or damaged in transit so that we can make a prompt claim against the delivery company and correct the problem. Please ensure all address details are accurate, we cannot be responsible for failed deliveries or losses arising from incorrect delivery addresses.

You agree that proof of delivery supplied by our delivery company is sufficient evidence to establish that goods have been received.

If your product is sent by Courier they will attempt delivery twice and a signature will be required. If they are unable to deliver because you are not available and after 5 days you have not contacted them to re-arrange. the goods will be returned to us and the return delivery costs may be charged to you

Explore Scientific HR Coma Corrector

MPN: 0510330





Price: 267.00


The Explore Scientific ES HR Coma Corrector is one of the highest quality units available on the market today. This system is disigned to work on Newtonian telescopes down to an amazing f/3 focal fatio and provides excellent field correction, dramtically diminishing the effects of coma, field curvature and astigmatism.



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