The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Zeiss Otus 85mm f1.4 and the Canon RF 70-200 F4L IS 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. Zeiss Otus 85mm f1.4 is the longer of the two lenses at 128mm. The Canon RF 70-200 F4L IS USM with a length of 119mm, is 9mm shorter. Besides being longer, the Zeiss Otus 85mm f1.4 also has a larger diameter of 88mm compared to the Canon RF 70-200 F4L IS 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 RF 70-200 F4L IS USM weighs 695g, 33% (345g) lighter than the Zeiss Otus 85mm f1.4's weight of 1040g.
Filter Threads
Both the Zeiss Otus 85mm f1.4 and the Canon RF 70-200 F4L IS USM have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Zeiss Otus 85mm f1.4 and the Canon RF 70-200 F4L IS USM has the same Canon RF lens mount. Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R6 V, Canon R6 III and Canon C50.
Zeiss Otus 85mm f1.4 is also available in the Canon EF , Nikon F (FX), Sony E and Nikon Z mounts.
Focal Range
Zeiss Otus 85mm f1.4 is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
127.5mm.
On the other hand, the Canon RF 70-200 F4L IS 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.
