The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Ulanzi AF 27mm F2.8 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. Ulanzi AF 27mm F2.8 is the longer of the two lenses at 48mm. The Canon 24mm F2.8 STM with a length of 23mm, is 25mm shorter. On the other hand, the Canon 24mm F2.8 STM has a larger diameter of 68mm compared to the Ulanzi AF 27mm F2.8's 64mm 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, 31% (57g) lighter than the Ulanzi AF 27mm F2.8's weight of 182g.
Filter Threads
Both the Ulanzi AF 27mm F2.8 and the Canon 24mm F2.8 STM have the same Filter thread size of 52mm.
Below are links to the 52mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Ulanzi AF 27mm F2.8 has the Sony E 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 Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount and Canon T8i, Canon 90D and Canon SL3 for the Canon EF-S Mount.
Focal Range
Ulanzi AF 27mm F2.8 is a prime lens with fixed focal lenght of 27mm which has an effective (full-frame 35mm equivalent) focal range of
40.5mm when used on a APS-C / DX format camera.
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.
