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Here is the first image taken with my new 120 mm Frehel achromatic and diaphragmed 100 mm sunglasses allowing me to reach an ideal F/D 10 ratio for observation with a standard PST modification on February 24, 2023.
The Fabry Perot standard comes from an old 2005 PST Coronado telescope that I have just recovered and transformed with various optical filters.
I then installed inside the telescope, a Lumicon rejection filter for the 77 mm aperture Halpha allowing increased contrast and a black background of the resulting image.
This construction is perfectly complementary to the 150 mm Halpha telescope and well suited to turbulence depending on the observation conditions.

Copyright

© Andre cassese

From the album:

Soleil Halpha lunette 120 mm et 80 mm

· 25 images
  • 25 images
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  • 7 image comments


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