The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Kamlan 28mm F1.4 and the Olympus 30mm F3.5 Macro for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Kamlan 28mm F1.4 is the longer of the two lenses at 65mm. The Olympus 30mm F3.5 Macro with a length of 60mm is 5mm shorter. On the other hand, the Olympus 30mm F3.5 Macro has a larger diameter of 57mm compared to Kamlan 28mm F1.4's 55mm diameter.
Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Olympus 30mm F3.5 Macro weighs 128g, 66% (256g) lighter than the Kamlan 28mm F1.4's weight of 384g.
Both Kamlan 28mm F1.4 and Olympus 30mm F3.5 Macro has the same Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are OM System OM-5, Panasonic GH6 and OM System OM-1.
Kamlan 28mm F1.4 is also available in Canon EF-M , Fujifilm X and Sony E mounts.
Kamlan 28mm F1.4 is a prime lens with fixed focal lenght of 28mm which has an effective (full-frame 35mm equivalent) focal range of 56mm when used on a APS-C / DX format camera. Olympus 30mm F3.5 Macro is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of 60mm when used on a FourThirds format camera.