I'm thinking of giving this lens a crack. It seems for the $300 you pay, it is one hell of a bargain. I want it purely for portraiture. I realise its manual focus only and am quite keen to give this ago as all my other lenses are AF. It will be mostly used on my D700. Anyone here have this lens? Pros, cons, happy, unhappy? Any comments appreciated except ones like buy the Nikon G version. I simply don't have $2 large sitting around doing nothing