G'day, I have a Nikon D7200 and today was using my Nikkor 50mm AF 1.8 D, I was outside taking photos of under my pergola, So I was standing out in the (sometimes sunny and sometimes cloudy ) taking photos of the shaded parts under the pergola, I was in Aperture priority mode and when I bumped it up to f/22 I got a purple haze in the centre of my photos, f/8 and f/1.8 were all fine and now I have tested the lens inside and do not have a problem.
Is this something I should be worried about?, is it common shooting from light to dark?
Peter