The Celestron 1mm C Mount Adapter for Straight Through Finders connects guide cameras with C / CS mounts to Celestron Finders with 1mm rear finder thread. Price includes postage.
9 x 50 finders are in effect 50mm telescopes with a focal length of around 180mm. “Thoughts on Auto-Guiding” explains how they work well as guidescopes.
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.
UK DeliveryPrices include postage to all mainland UK addresses, except where indicated. Larger items may attract a surcharge for off shore or remote locations.When your item is dispatched, you will receive an email from our shopping cart saying ‘Your order is complete’We use Royal Mail and Courier services, whichever is more appropriate for the weight and value of your order.International Delivery:Website prices DO NOT include International delivery costs unless specified.We are happy to ship to most countries. We use a variety of Royal Mail and Courier services, depending on the weight, size, value and urgency of your order.Place your order via the shopping cart and you will be advised by email of additional shipping charges prior to the processing and dispatch of your order.Or simply email us for details of shipping charges to your country before you place your order.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 you reside 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. We have no control over these.