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 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 USM with a length of 89mm, is 87mm shorter. Besides being longer, the Canon EF 70-200 F4L IS II USM also has a larger diameter of 80mm compared to the Canon 14mm f2.8L USM's 77mm diameter.
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 USM weighs 560g, 28% (220g) 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 USM has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
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 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.