Have a D300 and I am wondering if somebody have used the Nikon 50 mm f/1.8 or Nikon 50 mm f/1.4 on the D300 so far ? How good are they ? Are they performing as expected on the D300 ? This camera is a low light camera in a sense that you can use high ISO to compensate ( something that you could not do with any other camera before ) ; personally I have shot with my 18-55 mm kit lens and even with my 70-300 VR using 1600 or more ISO and the pictures are acceptable, so I am thinking any of those two lenses will perfom great on the D300. Please advise !!