Tag Archives: EF 400mm f/2.8L IS II USM

Canon Patent For 400mm Lens With Built-In 1.4x Extender


Egami has discovered a new patent filed by Canon. The patent describes a 400mm f/2.8 fixed focal length lens with built-in 1.4x extender. The lens in the patent features a built-in extender of 1.4x, just like the one found in the EF 200-400mm f/4L IS USM lens. The lens EF 400mm f/2.8 described in the patent will offer aContinue Reading

Canon EF 500mm and 600mm f/4L IS II USM Lenses Test Results


DxOMark has posted their test results for the Canon EF 500mm f/4L IS II USM and EF 600mm f/4L IS II USM super telephoto prime lenses. Both lenses introduced in early 2011 and the lenses aimed at professional wildlife and sports photographers. From the overall test results the EF 500mm f/4L IS II USM has got aContinue Reading