The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon 24mm F2.8 STM and the Carl Zeiss Distagon T2/25 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. Carl Zeiss Distagon T2/25 is the longer of the two lenses at 98mm. The Canon 24mm F2.8 STM with a length of 23mm, is 75mm shorter. Besides being longer, the Carl Zeiss Distagon T2/25 also has a larger diameter of 73mm compared to the Canon 24mm F2.8 STM's 68mm 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 24mm F2.8 STM weighs 125g, which means it is 475g (79%) lighter than the Carl Zeiss Distagon T2/25 which has a weight of 600g.
Filter Threads
The Canon 24mm F2.8 STM has a filter size of 52mm whereas the Carl Zeiss Distagon T2/25 has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 52mm filters that we recommend you to consider for the Canon 24mm F2.8 STM:
And these are the 67mm filters that we recommend for the Carl Zeiss Distagon T2/25:
Lens Mounts
The Canon 24mm F2.8 STM has the Canon EF-S lens mount whereas the Carl Zeiss Distagon T2/25 has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Canon T8i, Canon 90D and Canon SL3 for the Canon EF-S Mount and Canon 1D X III, Canon 6D MII and Canon 5D MIV for the Canon EF Mount.
Carl Zeiss Distagon T2/25 is also available in Nikon F (FX) mount.
Focal Range
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.
On the other hand, the Carl Zeiss Distagon T2/25 is a prime lens with fixed focal lenght of 25mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 40mm.