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 Panasonic Macro 30mm F2.8 OIS 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. Kamlan 28mm F1.4 is the longer of the two lenses at 65mm. The Panasonic Macro 30mm F2.8 OIS with a length of 64mm, is 1mm shorter. On the other hand, the Panasonic Macro 30mm F2.8 OIS has a larger diameter of 59mm compared to the Kamlan 28mm F1.4's 55mm 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. Panasonic Macro 30mm F2.8 OIS weighs 180g, 53% (204g) lighter than the Kamlan 28mm F1.4's weight of 384g.
Filter Threads
The Kamlan 28mm F1.4 has a filter size of 52mm whereas the Panasonic Macro 30mm F2.8 OIS has a 46mm 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 Kamlan 28mm F1.4:
And these are the 46mm filters that we recommend for the Panasonic Macro 30mm F2.8 OIS:
Lens Mounts
Both the Kamlan 28mm F1.4 and the Panasonic Macro 30mm F2.8 OIS 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-1 II, Panasonic G9 II and OM System OM-5.
Kamlan 28mm F1.4 is also available in Canon EF-M , Fujifilm X and Sony E mounts.
Focal Range
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.
On the other hand, the Panasonic Macro 30mm F2.8 OIS 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.