Bought RF 100-400mm F5.6-8 IS USM for my R100, results are mind blowing.

400mm F/8 1/640s ISO 500

https://preview.redd.it/uvtnfufhtyce1.jpg?width=780&format=pjpg&auto=webp&s=b3dd2d11c2504854394de397bceadbc7c604ed0d

At first, I was skeptical how it will perform in such a cheap camera, but I realized I was wrong all about that.