Captured this image in Iceland in 2016. To get this image was a bit of a feat since the Kittiwakes were on the edge of a sheer cliff face overlooking a deep very narrow ravine. I was on the opposite side with the 500mm ---- too precarious to try and remove the TC. Good reason to carry an extra shorter focal length too. This is full frame. C&C welcome.
D4s, Nikon 500mm f/4G + 1.4 TC. 1/1600s, f 10, ISO 320, Gitzo, Wimberley Gimbal head.
Geoffrey
http://500px.com/geoffreymontagu