The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 50mm F2.5 G and the Kamlan 55mm F1.2 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. Sony FE 50mm F2.5 G weighs 174g, which means it is 526g (75%) lighter than the Kamlan 55mm F1.2 which has a weight of 700g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Sony E Mount for size comparison purposes.
Standard Lenses in Sony E Mount for Size Comparison
Filter Threads
The Sony FE 50mm F2.5 G has a filter size of 49mm whereas the Kamlan 55mm F1.2 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 49mm filters that we recommend you to consider for the Sony FE 50mm F2.5 G:
And these are the 62mm filters that we recommend for the Kamlan 55mm F1.2:
Lens Mounts
Both the Sony FE 50mm F2.5 G and the Kamlan 55mm F1.2 has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A9 III, Sony A7C Mark II and Sony A7CR.
Focal Range
Both lenses have the same focal range of
50mm but while Sony FE 50mm F2.5 G has the fastest aperture of
F2.5, the Kamlan 55mm F1.2's widest aperture value is
F1.2.