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.

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.

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.

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.

[SPC900 / SPC800 to Sky-Watcher and GSO to C & T adapters are also available ]

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 QHY5 II and QHY5L II Push Fit Adapter for 50mm Straight Through 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.

Adapters are near parfocal with visual focus of the finder.

The post Celestron 1mm 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 offer this 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 1500mm and more, see this article.

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.

The post Celestron 1mm T Thread Adapter for Right Angled 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 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 guidescope reduces the weight and complexity of your imaging setup and the wide field of view guarantees finding suitable guide stars.

Adapters are near parfocal with visual focus of the finder.

The post SPC900 / SPC880 Adapter for Right Angled 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 – Simply remove the eyepiece and holder to check.

Please contact us prior to purchase if you are unsure

Tests of the SPC900 and SPC880 Adapter for Straight Through Finders 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 guidescope reduces the weight and complexity of your imaging setup and the wide field of view guarantees finding suitable guide stars.

Adapters are near parfocal with visual focus of the finder.

The post SPC900 and SPC880 Adapter for Straight Through Finders appeared first on Modern Astronomy.

Most Celestron finders are the same as SkyWatcher, 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.

[SPC900 / SPC800 to Sky-Watcher and GSO to C & GSO to T adapters are also available ]

Please contact us prior to purchase if you are unsure

Tests have confirmed that guiding with the SkyWatcher 9×50 Finder to C Adapter is successful at focal lengths of 1500mm and more and is seeing dependent.

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

Using a 9×50 finder as a guide-scope reduces the weight and complexity of your imaging setup and the wide field of view practically guarantees finding suitable guide stars.

Guiding software prefers a less than perfect star image, so the centre of the star mass can be better calculated. Most 9×50 finders are optimal for this “as-is” whereas small refractors can be, if anything, too sharp.

Please read this article “Thoughts on Auto-Guiding” for a more in depth analysis of the subject, which is borne out by my tests.

The post SkyWatcher 9×50 Finder to C Adapter 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 Sky-Watcher & Clones to T thread Adapter for Right Angled Finders appeared first on Modern Astronomy.