Wide field sky

I bought a pile of 2nd hand camera kit at the photography club auction as it included some (manual) lenses that would fit the Pentax.
We had a bit of clear sky tonight so I tried out a 22mm f2 lens.
Hiding between the houses to keep away from the street lights and just lying the camera on its back (way to cold out there to fuss round with a tripod): iso1600 and 25second exposure produced this straight out of the camera.
Might actually get a tripod out now I know the lens is OK.