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The 400mm f / 4 DO IS II USM, which replaced an earlier version of the same lens in 2014, [3] is one of only two Canon lenses that make use of diffractive optics (the other is the EF 70–300mm f/4.5–5.6 DO IS USM). The use of diffractive optics allows the lens to be significantly lighter than it might otherwise be.
The new Canon EF 100-400mm f/4.5-5.6L IS II USM was announced on 11 November 2014 (10 November in the United States due to time zone differences from Japan), with availability expected the following month. Among the changes from the Mark I version are: [3] [4]
f/2.8L USM [7] [8] f/2.8L IS USM; f/2.8L IS II USM [9] [10] f/2.8L IS III USM [11] The latest iterations of both the f/4 and the f/2.8 variants were announced on 7 June 2018. The f/4 is currently under production and the original MSRP was increased from US$1,299 to US$1,499. In March 2021, it was reported that Canon had decided to discontinue ...
The EF 200–400 mm f / 4L IS USM Extender 1.4× is an EF mount super telephoto zoom lens produced by Canon. It is part of the professional L-series and functions with the Canon EOS line of cameras. The EF 200–400 mm lens features an ultrasonic motor, image stabilization and weather sealing.
From left to right: EF 28-300mm f / 3.5-5.6L IS USM, 70–200 f / 2.8L IS USM, 300mm f / 2.8L IS USM, 500mm f / 4L IS USM. The EF 500mm lenses are a group of super-telephoto prime lenses made by Canon that share the same focal length. These lenses have an EF type mount, and fit the Canon EOS line of digital single lens reflex cameras.
The 70-200 mm f/2.8L lens. Canon's series of L lenses (Luxury lenses) are a professional line of photography lenses made by Canon.Canon has sold zoom and prime L-series lenses for the discontinued FD lens mount, for the current EF lens mount used on all Canon EOS SLR cameras and for the RF mount used on mirrorless interchangeable-lens cameras.
The 100 mm f/2 on the left is incompatible with Canon Extenders, unlike the 70-200mm f/2.8 IS on the right. 300mm f/2.8 IS lens, no extender 300mm f/2.8 IS lens, 1.4× extender 300mm f/2.8 IS lens, 2.0× extender. These Extender EF lenses can only be used with lenses that have a compatible mount.
In 1987 Canon was the first to use USM (Ultrasonic Motor) with the Canon EF 300mm f/2.8L USM. [ 19 ] In 1989 Canon was the first to create a full frame f/1.0 AF (AutoFocus) lens and the only one until today with the Canon EF 50mm f/1.0L USM.