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 14mm F2.5 II ASPH 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 14mm F2.5 II ASPH with a length of 21mm, is 44mm shorter. On the other hand, the Panasonic 14mm F2.5 II ASPH has a larger diameter of 56mm 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 14mm F2.5 II ASPH weighs 55g, 85% (329g) lighter than the Kamlan 28mm F1.4's weight of 384g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Micro Four Thirds Mount for size comparison purposes.
Wideangle Lenses in Micro Four Thirds Mount for Size Comparison
Filter Threads
The Kamlan 28mm F1.4 has a filter size of 52mm whereas the Panasonic 14mm F2.5 II ASPH 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 14mm F2.5 II ASPH:
Lens Mounts
Both the Kamlan 28mm F1.4 and the Panasonic 14mm F2.5 II ASPH 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-3 Astro, OM System OM-5 II and OM System OM-3.
Kamlan 28mm F1.4 is also available in the 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 14mm F2.5 II ASPH is a prime lens with fixed focal lenght of 14mm which has an effective (full-frame 35mm equivalent) focal range of 28mm when used on a FourThirds format camera.