DXO is still really good and in it's own class but... since the upgrade to version 5 (that's windoze not Mac yet, despite taking my upgrade fee in November - COME ON GUYS!) the thing has slowed down too much. They have introduced a new RAW engine and whilst this looks groundbreaking stuff, if it's not quick you don't bother, well I don't. I'll put more up when I start getting impressed again, until then I don't recommend this, sorry!

The above image was taken on a Sigma 70 f2.8 Macro lens (not actually 'supported' by DXO).

If you hold your mouse over the image you will see the difference DXO makes in just a few seconds!

I think this software is brilliant, but, check your camera is supported. The price you pay depends on how 'pro' your kit is.. the Nikon D200 costs $159.

So what does DXO do? I originally thought it was just for 'fish-eye' lenses as it corrects distortion, but now I realise it does so much more...
DXO is clever and produced by some clever French people who did the maths to determine the weaknesses inherent in different camera/lens combinations. Using these calculations, noise, chromatic aberration, exposure and distortion is corrected at different focal lengths, thus the changes may be subtle but, hey, that's what you need!

DXO is here