1.25 Inch Push Fit Adapter for SkyWatcher 9 x 50 Standard Finders Connects 1.25″ format cameras like the QHY5L-II, GPCam and Lodestar to SkyWatcher 9 x 50 straight through finders via 1.25″ push fit rather than screw fit – for convenience of setup. Also fits clones like some Celestron and Orion finders. Ask if unsure.

Please contact us prior to 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 setup and the wide field of view guarantees finding suitable guide stars.

The post 1.25 Inch Push Fit Adapter for SkyWatcher 9 x 50 Standard Finders appeared first on Modern Astronomy.

1.25 Inch Push Fit Adapter for GSO 8 x 50 Straight Through Finders Connects QHY5-II, QHY5L-II, GPCam and Lodestar cameras to Sky-Watcher, Orion and most Celestron (see below) 50mm straight through finders via 1.25″ push fit rather than screw fit – for convenience of setup.

This adapter also fits Teleskop Service, Revelation and other 8 x 50 finders that are rebadged GSO finders.

Please contact us prior to 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 setup and the wide field of view guarantees finding suitable guide stars.

The post 1.25 Inch Push Fit Adapter for GSO 8 x 50 Straight Through Finders appeared first on Modern Astronomy.

C Mount Extension for Finder / Guider Adapters. Converts a C mount straight through adapter to a right angle finder adapter with focus retained.

The post C Mount Extension for Finder / Guider Adapters appeared first on Modern Astronomy.

Connects QHY5-II series & Lodestar cameras to the Celestron 9 x 50 straight through finder with coarse threads.

Most Celestron finders are the same as Sky-Watcher, and have 11 fine threads cut into the rear of the finder tube but this adapter fits those that have 8 x 1mm threads. Simply remove the finder eyepiece and holder to check.

This adapter uses a push fit system which many prefer for ease of use. We also supply a C/CS mount adapter for Celestron (1mm) finders which uses a screw thread for connection.

The post QHY5-II Series / Lodestar Adapter for Celestron (1mm) Straight Through Finders appeared first on Modern Astronomy.

All (true) C / CS mount cameras will also be compatible as long as the back focus is less than 20mm

Please contact us prior to purchase if you are unsure

Tests have confirmed that guiding is successful at focal lengths of 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, fine focus can be achieved by using the screw adjustment available at the objective.

The post GSO and Clones to C Mount Adapter for Straight Through Finders appeared first on Modern Astronomy.

Other true C and CS mount guide cameras will also be compatible and Clones include Teleskop Service, Altair Astro and Revelation finders.

Please contact us prior to purchase if you are unsure

Tests have confirmed that guiding can be successful at all focal lengths, due to limitations imposed by atmospheric seeing, read this article on the subject.

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.

The post GSO and Clones to C Mount Adapter for Right Angled Finders appeared first on Modern Astronomy.

Other T thread guide cameras will be compatible if their sensors are around 10mm – 15mm below the front surface of the camera.

Please contact us prior to 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.

The post GSO & Clones to T Thread Adapter for Right Angled Finders appeared first on Modern Astronomy.

Clones include Teleskop Service, Altair Astro and Revelation finders

Other T thread guide cameras will be compatible if their sensors are around 10mm – 20mm below the front surface of the camera.

Please contact us prior to 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.

The post GSO and Clones to T Thread Adapter for Straight Through Finders appeared first on Modern Astronomy.

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.

The post Celestron 1mm C Mount Adapter for Right Angled Finders appeared first on Modern Astronomy.

Please ask before purchase if you are unsure.

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.
Our tests have confirmed that guiding is successful at focal lengths of 1500mm and more though “off axis guiders” are recommended for telescopes prone to mirror movement, especially larger models, and where exposures are lengthy.

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 setup and the wide field of view guarantees finding suitable guide stars.

The Celestron 1mm C Mount Adapter for Straight Through Finders is near parfocal with visual focus of the finder.

For users with T thread cameras this adapter is suitable.

The post Celestron 1mm C Mount Adapter for Straight Through Finders appeared first on Modern Astronomy.