Try various iso It surprises me one can get away with 1600 but it works for me now..once its was 800 mostly ...but it will be what works with the exposure conditions permit...from seeing to mount performance...I think the faster will surprise you...try 30 seconds and work up ... higher iso may help with the colour maybe..
Just experiment.
Well tonight I set up in hope with the nikon and the 70 / 200 lens at 200 and photographed lights at a village on the distance using 6400 iso and 8 seconds...amazing.
But no stars tonight.
Alex
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