Equipement used :

EOS 1DX Mark II 
EOS 1DX Mark III

EF 24-70mm f 2,8 L USM II
EF 70-200mm f 2,8 L IS USM II
EF 200-400mm f 4 L IS USM
EF 300mm f 2,8 L IS USM II
EF 400mm f 2,8 L IS USM III

Spécial thanks to Canon Europe for the support "Graham Team"