Canon RF 400mm F2.8L IS USM: Design & Handling The design and handling are everything I could hope for in a top-flight, super-telephoto prime lens. The optical path features two fluorite glass ...

we recommend the Canon RF 100-400mm f/5.6-8 IS USM as a great telephoto to start with. The Canon RF 85mm f/2 Macro IS STM is a versatile portrait lens that also works as a macro. If you don’t ...

Best overall Best zoom lens overall This telephoto zoom lens from Sony is perfect for deep sky astrophotographers thanks to its huge focal length. It is well-made and durable but comes with a ...

In summary, the Canon EF 400mm f/2.8L IS III USM lens is a superb performer. You can view additional images in the Equipment Database, where you can add your own review, photos and product ratings.