The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon 16-35mm f4L IS USM and the Carl Zeiss Biogon T2,8/21 ZM 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 16-35mm f4L IS USM is the longer of the two lenses at 113mm. The Carl Zeiss Biogon T2,8/21 ZM with a length of 75mm, is 38mm shorter. Besides being longer, the Canon 16-35mm f4L IS USM also has a larger diameter of 83mm compared to the Carl Zeiss Biogon T2,8/21 ZM's 53mm 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. Carl Zeiss Biogon T2,8/21 ZM weighs 280g, 54% (335g) lighter than the Canon 16-35mm f4L IS USM's weight of 615g.
Filter Threads
The Canon 16-35mm f4L IS USM has a filter size of 77mm whereas the Carl Zeiss Biogon T2,8/21 ZM has a 46mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Canon 16-35mm f4L IS USM:
And these are the 46mm filters that we recommend for the Carl Zeiss Biogon T2,8/21 ZM:
Lens Mounts
The Canon 16-35mm f4L IS USM has the Canon EF lens mount whereas the Carl Zeiss Biogon T2,8/21 ZM has the Leica M lens mount. Some of the latest released cameras that are compatible with these mounts are Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount and Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount.
Focal Range
Canon 16-35mm f4L IS USM has a focal range of 16-35mm and
2.2X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
25.6 - 56mm.
On the other hand, the Carl Zeiss Biogon T2,8/21 ZM is a prime lens with fixed focal lenght of 21mm.
