I made 10 cm reflector when I was 13 years old for comet hunting.
The original structure was different from this photo.
I made a primary mirror of this 10 cm scope. This is the
test report carried out by NTK Optics at the recoating. They wrote,
"Rather good as a fast mirror. I believe this mirror shows a good star
image, as a high zone at the center is hidden by a secondary mirror. Nakamura."
