The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon EF 70-200 F4L IS II USM and the Canon 14mm f2.8L II USM for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Canon EF 70-200 F4L IS II USM is the longer of the two lenses at 176mm. The Canon 14mm f2.8L II USM with a length of 94mm, is 82mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 80mm.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Canon 14mm f2.8L II USM weighs 645g, 17% (135g) lighter than the Canon EF 70-200 F4L IS II USM's weight of 780g.
Lens Mounts
Both the Canon EF 70-200 F4L IS II USM and the Canon 14mm f2.8L II USM has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K.
Focal Range
Canon EF 70-200 F4L IS II USM has a focal range of 70-200mm and
2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
112 - 320mm.
On the other hand, the Canon 14mm f2.8L II USM is a prime lens with fixed focal lenght of 14mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 22.4mm.