The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Zeiss Otus 28mm F1.4 and the Canon 24mm F2.8 STM 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 28mm F1.4 is the longer of the two lenses at 137mm. The Canon 24mm F2.8 STM with a length of 23mm, is 114mm shorter. Besides being longer, the Zeiss Otus 28mm F1.4 also has a larger diameter of 88mm compared to the Canon 24mm F2.8 STM's 68mm diameter.
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Below you can find a scaled side-by-side image of Zeiss Otus 28mm F1.4 and Canon 24mm F2.8 STM to get a better idea of how their sizes compare in real life.
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.
Filter Threads
The Zeiss Otus 28mm F1.4 has a filter size of 95mm whereas the Canon 24mm F2.8 STM has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 95mm filters that we recommend you to consider for the Zeiss Otus 28mm F1.4:
And these are the 52mm filters that we recommend for the Canon 24mm F2.8 STM:
Lens Mounts
The Zeiss Otus 28mm F1.4 has the Canon EF lens mount whereas the Canon 24mm F2.8 STM has the Canon EF-S lens mount. Some of the latest released cameras that are compatible with these mounts are Canon 1D X III, Canon 6D MII and Canon 5D MIV for the Canon EF Mount and Canon T8i, Canon 90D and Canon SL3 for the Canon EF-S Mount.
Zeiss Otus 28mm F1.4 is also available in Nikon F (FX) mount.
Focal Range
Zeiss Otus 28mm F1.4 is a prime lens with fixed focal lenght of 28mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42mm.
On the other hand, the Canon 24mm F2.8 STM is a prime lens with fixed focal lenght of 24mm which has an effective (full-frame 35mm equivalent) focal range of 38.4mm when used on a APS-C / DX format camera.