Nienna's Solar Finder is machined from aluminium with white powder coating. The coating was chosen in order to provide good contrast for the dot that marks the sun's location. N.B: The white powder coating is as near as possible identical to the coating used on Sky-Watcher telescopes. But of course, white colour fits in just about everywhere.
By default the Nienna Solar Finder comes equipped with a dovetail connector that will fit finder bases commonly found on most telescopes by Sky-Watcher, Celestron, TS-Optics, Omegon, some Bresser and Meade models and several more. Simply slot the finder into the base and lock it with the base’s thumbscrew.
The Solar Finder can be easily adjusted with spring-loaded alignment screws.
How to find the sun with the Nienna Solar Finder
1. Point the telescope towards the sun. You do not need to be extremely precise with this, a rough approximation will do. Once you are in the vicinity of the sun check the projection surface of the solar finder (see image). You should see a shadow cast by the forward part of the solar finder.
2. You should see a light dot within the shadow. If the shadow is offset too far towards one side you may need to move the telescope until the shadow nearly completely covers the rear surface. At this point the dot should be visible.
3. Move the telescope until the light dot ends up on the centre marking of the projection surface (see image). The sun should now be centred in the field of view of your telescope. We recommend using an eyepiece with the lowest possible magnification in order to locate the sun.
Compatibility limitations
The distance between the opening at the front of the solar finder and the bottom of the mounting base is approximately 22-24mm. On some telescopes, particularly some refractors, the diameter of the dewcap is so large that it will cast a shadow on the front of the solar finder, rendering it impossible to use. Please check your telescope before ordering, especially if you own a refractor with a large dewcap diameter.