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 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 24mm f2.8 is the longer of the two lenses at 49mm. The Ulanzi AF 27mm F2.8 with a length of 48mm, is 1mm shorter. Besides being longer, the Canon 24mm f2.8 also 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. Ulanzi AF 27mm F2.8 weighs 182g, which means it is 88g (32%) lighter than the Canon 24mm f2.8 which has a weight of 270g.
Filter Threads
The Ulanzi AF 27mm F2.8 has a filter size of 52mm whereas the Canon 24mm f2.8 has a 58mm 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 Ulanzi AF 27mm F2.8:
And these are the 58mm filters that we recommend for the Canon 24mm f2.8:
Lens Mounts
The Ulanzi AF 27mm F2.8 has the Sony E lens mount whereas the Canon 24mm f2.8 has the Canon EF 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 Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF 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 is a prime lens with fixed focal lenght of 24mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 38.4mm.