The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7Artisans AF 27mm F2.8 and the Kamlan 50mm F1.1 II for their suitability to various photography scenarios:
Size and Weight Comparison
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. 7Artisans AF 27mm F2.8 weighs 144g, which means it is 456g (76%) lighter than the Kamlan 50mm F1.1 II which has a weight of 600g.
Filter Threads
The 7Artisans AF 27mm F2.8 has a filter size of 39mm whereas the Kamlan 50mm F1.1 II has a 62mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 39mm filters that we recommend you to consider for the 7Artisans AF 27mm F2.8:
And these are the 62mm filters that we recommend for the Kamlan 50mm F1.1 II:
Lens Mounts
The 7Artisans AF 27mm F2.8 has the Fujifilm X lens mount whereas the Kamlan 50mm F1.1 II has the Canon EF-M lens mount. Some of the latest released cameras that are compatible with these mounts are Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X Mount and , and for the Canon EF-M Mount.
7Artisans AF 27mm F2.8 is also available in the Sony E mount.
Kamlan 50mm F1.1 II is also available in Fujifilm X , Micro Four Thirds and Sony E mounts.
Focal Range
7Artisans 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 Kamlan 50mm F1.1 II is a prime lens with fixed focal lenght of 50mm which has an effective (full-frame 35mm equivalent) focal range of 75mm when used on a APS-C / DX format camera.
