The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Kamlan 50mm F1.1 II and the OM System 12-40mm F2.8 PRO 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. OM System 12-40mm F2.8 PRO II weighs 382g, 36% (218g) lighter than the Kamlan 50mm F1.1 II's weight of 600g.
Filter Threads
Both the Kamlan 50mm F1.1 II and the OM System 12-40mm F2.8 PRO II have the same Filter thread size of 62mm.
Below are links to the 62mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Kamlan 50mm F1.1 II and the OM System 12-40mm F2.8 PRO II has the same Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are , and .
Kamlan 50mm F1.1 II is also available in the Canon EF-M , Fujifilm X and Sony E mounts.
Focal Range
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.
On the other hand, the OM System 12-40mm F2.8 PRO II has a focal range of 12-40mm and 3.3X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 24-80mm when used on a FourThirds format camera.
