I built a telescope roughly around 2004. I ground the mirror myself while a member of ATMoB. The miror is 20cm in diameter, and roughly 160cm focal length making it an f8. The quality of the mirror is poor, due to my greed. If I remember correctly, the parabola is 1/4 wave accurate. The system is newtonian, I bought the secondary mirror from another source. Everything else is home built. Originally I used an azimuthal mount, but then I switched to the more compact Dobsonian mount.
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