Why did my Nikon 600mm f4E render a curve to be angular?
Why did my Nikon 600mm f4E render a curve to be angular? The 600mm is a new focal length to me and due to its overall and associated size and weight, I haven't been using it all that much. Took it to the local bird park last week and really loved this photo. I didn't notice till yesterday that the out-of-focus flamingo on the left has an angular neck! Now I can't unsee it. I'm wondering why and how I ...