Autofocus can work - Moon and Jupiter
A couple of shots from last night, with a little middle/high cloud. Sony a77, Sigma 150-500@500.
Moon (cropped) ISO400, 1/640 sec, f6.3.
Jupiter full frame (just to see how little the a/f had to work with) and crop ISO400, 1/30 sec, f6.3.
Jupiter (blown out and haloed) with a few moons. ISO1600, 1/4 sec, f6.3
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