Gobble: Photographing still objects like sculpture in a studio setting is quite an art and you need to get the appropriate set up to make sure the light is bouncing off correctly to minimize shadows etc.
This is quite different to barrel distortion or convergence of parallel line (which by the way will not be all that bad I think at an 18mm ff equivalent lens) which will be evident if you take a photograph of a brick wall or large building using a particularly wide angle lens. Many reviews of lenses provide a picture of a wall to show you how a particular lens performs with this regard.
I used to use a tilt and shift lens with my Canon rig, which was just superb but over GBP 2.000, to get perfectly parallel lines. Nowadays distortion can be easily correct in PP.
Yeah ok, but I dont plan any studio shots. On-site onlee.
Guess I am nit-picking now, should just get the stuff and enjoy it.
--G