Upload & Sell: On
Mike your Aurora Borealis photos are breathtaking. You honor us by sharing them on this thread. That they were taken with the wonderful MF Nikkors we're celebrating here is inspiring. You mention modifying your kit, selling a couple of MF lenses and adding the 20 f/2.8D. I wonder it you can't get where you want to go with the 20 f/2.8 AI-s. I ask selfishly, because the MF lens would permit you to continue sharing these images, but the AF lens doesn't. I imagine you have your reasons. If you're using it for real estate work there may be some appeal to having AF.
Keep em coming Mike...
I have not dug into the optical formula differences if any between the 20mm AIS, AF, and the AF-D. I use speedlights in i-TTL so the AF-D would be the best choice there. I do prefer to use AI, AIS lenses for the cold night work as I don't feel too bad when they frost over at -35°. The 24mm and 28mm and 35mm all have nasty distortion wide open that forces me to give up 2 stops to get pin point stars. Only the Noct is relatively distortion free at ƒ/1.2
I still have boat loads of MF Nikkors but I would be posting fewer Aurora shots.
Corona 3-17-13 in the wee hours
NIKON D3S 24 mm f/2.8 1 sec 4000 ISO +0.3 EV