Well with the 500 in my Arsenal this one just had to be done.Its amazing how far out the aperture priority mode was, even on spot metering it recommended about 1/3 second. As you can see from the exif the required dial up in manual for the correct exposure was a mile away from1/3 second.

Just noticed I was still on ISO 1250 from the bird shots. Ah drat, never mind. More playing on another night me thinks :-)