Dobsonian and Newtonian

Dobsonian and Newtonian: Two newtonians of different constructions. In the front a Dobsonian and in the back a classic Newtonian tube on an equatorial mount. Telescope meeting, Ahornalp. Nikon D3, 1/10 s, F/4.0, 50 mm, ISO 200, Friday, May 22, 2009 21:33:29