This one probably needs the least explanation and just speaks for itself. I got it for my trip to Tanzania where I was shooting wildlife out of a safari vehicle for days. Sometimes we would get fairly close to the animals but often were were quite a bit of distance out. I wanted to avoid having to change lenses too often in such a dusty environment while on game drives and the 100-400 was such a convenient range. The pictures were just stunning.
I also purchased a 1.4x teleconverter for this that I used when shooting the Super Blue Blood Moon we had in San Francisco in early 2018. That made the 400mm closer to 560mm.
