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Celestron 1mm C Mount Adapter for Right Angled Finders


Connects ZWO, QHY6 and Orion SSAG cameras to Celestron Finders with 1mm rear finder thread


Connects QHY5-II, QHY5L-II, Lodestar, Orion SSAIO, Mintron, Watec & DMK cameras, via the C mount adapter to Celestron Finders with 1mm rear finder thread

Most Celestron finders are the same as Sky-Watcher, and have 11 fine threads cut into the rear of the finder tube.

However some are different and we now have a separate adapter for those Celestron finders with 8 coarser (1mm) rear finder threads. Simply remove the eyepiece and holder to check.


Please ask before purchase if you are unsure 🙂


Tests have confirmed that guiding is successful at focal lengths of up to 1500mm and more.

Stability is excellent if screws are tightened firmly and cables tied up.

Using the finder as a guide-scope reduces the weight and complexity of your imaging set-up and the wide field of view guarantees finding suitable guide stars.

Adapters are near parfocal with visual focus of the finder.


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Items are normally in stock and are usually dispatched within one working day, if a delay seems likely you’ll be informed.

UK Postage and Packaging

Prices include postage to all mainland UK addresses, except where indicated. Larger items may attract a surcharge for off shore or remote locations. Modern Astronomy is an internet mail order business but customers may be able to collect items, by prior arrangement, from us in Purley (near Croydon) in Surrey.

International Shipping

We are happy to ship to most countries. You can place your order via the shopping cart and you’ll be advised of additional shipping charges, by email, prior to the processing and dispatch of your order. Or simply email for details of shipping charges to your country. Some items which are particularly popular with overseas purchasers already display, in the purchase menu, combined purchase and shipping costs to various regions adjusted for UK VAT (sales tax) where necessary. If outside the European Union, please check with your customs authorities for details of any import taxes, duties and other charges that may be imposed on entry to your country.

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