The DR will focus to 1m as standard, and .5m's with the goggles on.
I think that you can only focus between 50cm and a metre once goggled though.
A 90mm (lens) at one metre will give you the same coverage as the DR at .5 metres, so that may or may not suit you better.
You'll need a later Summicron if close focus is that important, with those focussing up to .7metres.
Then again, the eyes do look cool..