So today we had calm winds and sunny skies. After work I headed over to the nature preserve to try out stacked 1.4x and 2x teleconverters on the 500 f/4. It was interesting that only the 2x reported, so AF was not lost and aperture reported f/8 and 1000mm, although I was really at 1400mm. The viewfinder was pretty dim of course, and AF was very slow so I just used manual focus, and a cable release. Here are the results.


1400mm! 



