I have a Nikon D500 I have used at a few air shows now and have found that the the focus has been off producing soft images. I've had a go at manually pre-focusing the camera with each lens profile as per the manual but either subjects that are close are sharp and distant objects are soft or vice-versa. Taking the same images at air shows with my Nikon D300 and D3300 produce consistently sharp images at all ranges with the same lenses without any issues.