My first Telescope

When I was 15, I cannibalized the spectacles of my mother, build a cardboard "telescope" with it and started to collect stardust. It was a glass of 43 mm diameter and 540 mm focal length (2 dioptries).

A eyepiece I used a mangifier lens, that yielded 20-x magnification:

I quickly learned what spherical and chromatic aberration meaned in practice . Despite all imperfectness it was "My Telescope" and I startet my first observations and drawings with it hanging out of the window like a pirate on deck:

- very firtst drawing of the Plejadees
- Andormeda Galaxy