New answers tagged halos
If it helps, I've been struggling with a similar (although not as pronounced) issue with a Nikon 400mm f2.8 lens. You can see a selection of photos showing this same issue here: https://www.flickr.com/photos/simonawest/albums/72157660943127566 Look at the points where an in-focus white shirt is on an out of focus dark background. I started (as suggested ...
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