I wanted to get a different perspective on cars using 400mm block. I bought one 400mm 5.6 and found it horribly slow for my choice of ISO. In typical Indian condition one wouldn’t get more than 1/10th to have a decent f stop like f16 @ 100ISO. So that lens didn’t work for me and now one of my friends is using that on his 350D. He’s very happy with his bird photographs.
At the same time I’ve tried 400mm f2.8L. With and without 2X. That lens with my camera body feels like made for each other!
Quality is stunning and so is the price. 4500£ in India including that 2X convertor.
