I'm interested in deep space astro-photography, especially galaxies and nebulae. I wonder what is the best way to obtain a very good quality, at a decent price :
- A small telescope with a very good and stable tracking mount, with the body directly attached to the telescope
- A long prime lens (300-400mm ?) with good aperture and sharpness, together with a tracking system like AstroTrac mounted on a usual tripod.
The second solution seems less stable than a telescope, but the telephoto lens can also be used for different usages. I have a Nikon D700 body (thus a full frame sensor) and a classic manfrotto tripod with head 496RC2.