Point taken (well taken!) about not including the camera and lens for my shot. It's a 5Diii with a 400 DO and a 1.4X extender. This isn't a lens forum so I won't say too much except that I think that the 400DO is one of the best kept secrets of Canon's lenses. It is light, relatively compact, and ultra-sharp, and obviously mates well with the 1.4X extender. When it came out about 10 years ago it got a very bad reputation, but if it had bugs back then it sure doesn't today. I love that lens.