LensRentals Finds the Canon RF 600mm f11 Is an Unusual Lens

Ever heard of a Reflex lens? Well, in some ways, the new Canon RF 600mm f11 is built like one. It has a fixed f11 aperture just like many of those reflex/mirror lenses from way back in the day. LensRentals decided to take the new Canon RF 600mm f11 apart and see what's inside. Immediately, they noticed a lack of weather resistance at the mount. This, perhaps amongst everything else, is a huge disappointment. If you're a wildlife photographer, then you're bound to want to shoot with a 600mm lens ...