With Sol’Ex (Solar Explorer), make incredible images of the Sun, as if you had a particularly narrow filter, much narrower than any filter on the market. Also, you can choose the wavelength of your image.

Sol’Ex is a small instrument to build yourself, with 3D printed parts.

This is a project proposed and led by Christian Buil.

Sol'Ex must be installed on a small astronomical telescope (with a maximum focal length of 400mm, to see the whole Sun in a single image).

The Sol’Ex project includes automatic image processing software: the result appears on the screen in just a few clicks.

The Sol’Ex optical kit offered by Shelyak brings together all the optical elements necessary for the manufacture of the instrument: slit, grating, lenses, etc.

You will have to independently obtain the 3D printed parts (STL files available on the site Sol’Ex), the bezel, the mount, a CCD or CMOS camera, as well as a solar filter or a Herschel prism to reduce the light intensity of the sun.