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 Sony FE 35mm F1.4 GM 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. Sony FE 35mm F1.4 GM is the longer of the two lenses at 96mm. The Ulanzi AF 27mm F2.8 with a length of 48mm, is 48mm shorter. Besides being longer, the Sony FE 35mm F1.4 GM also has a larger diameter of 76mm 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 342g (65%) lighter than the Sony FE 35mm F1.4 GM which has a weight of 524g.
Filter Threads
The Ulanzi AF 27mm F2.8 has a filter size of 52mm whereas the Sony FE 35mm F1.4 GM 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 Ulanzi AF 27mm F2.8:
And these are the 67mm filters that we recommend for the Sony FE 35mm F1.4 GM:
Lens Mounts
Both the Ulanzi AF 27mm F2.8 and the Sony FE 35mm F1.4 GM has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony ZV-E10 II, Sony A6700 and Sony FX30.
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 Sony FE 35mm F1.4 GM is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 52.5mm.