The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon TS-E 17mm f4L and the Canon 17-40mm f4.0L 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 TS-E 17mm f4L is the longer of the two lenses at 107mm. The Canon 17-40mm f4.0L USM with a length of 97mm, is 10mm shorter. Besides being longer, the Canon TS-E 17mm f4L also has a larger diameter of 89mm compared to the Canon 17-40mm f4.0L USM's 84mm 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 17-40mm f4.0L USM weighs 500g, 39% (320g) lighter than the Canon TS-E 17mm f4L's weight of 820g.
Lens Mounts
Both the Canon TS-E 17mm f4L and the Canon 17-40mm f4.0L 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 TS-E 17mm f4L is a prime lens with fixed focal lenght of 17mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
27.2mm.
On the other hand, the Canon 17-40mm f4.0L USM has a focal range of 17-40mm and 2.4X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 27.2 - 64mm.