So, I happen to have some money to spend and want to change my entire kit, camera 5 lenses and 2 flash guns. Why? Because I have had enough of Pentax. Apart from the decreasing amount of 3rd party support (e.g. Sigma) and the fact that my nose always changes the WB setting accidentally I also find my K3 slow (focus and fps) and noisy (most lenses at not USM). My main interests are macro work (insects), wild birds and fast jets at air shows, as well as general photography. My choices seem to be: - Nikon D500. Pricey but with great autofocus and frame rate. Is it worth the extra? - Canon EOS 7D Mark II. Older and slightly less capable than the D500, but Canon have much better support for macro work and Canon are a bigger system and it is significantly less expensive. - Panasonic GH5 - a bit off the wall for me, but the specs sound great and would be more luggable. But would it keep up with a Eurofighter? Any advice would be appreciated.