Isn't it funny, I was researching this last night.
I'd like to add another lens to the list.
Tamron 90mm f/2.8 SP Di macro
For me it's the ultimate dual purpose lens. Not only does it take superb sharp macros, it's a cracker for wide field astro work.
As usual, it needs to be stopped down a little. But that is the norm using lenses at night. Just like a telescope, they work best at F4 and up.
In my reading last night, it was recommended to stop it down using an aperture mask instead of "in camera". Apparently it sharpens the stars up more as there is less diffraction from the aperture blades. Will have to give it a go.