The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 28mm F4.5 L 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. Panasonic 14mm F2.5 II ASPH is the longer of the two lenses at 21mm. The Viltrox 28mm F4.5 L with a length of 20mm, is 1mm shorter. On the other hand, the Viltrox 28mm F4.5 L has a larger diameter of 60mm compared to the Panasonic 14mm F2.5 II ASPH's 56mm 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, 8% (5g) lighter than the Viltrox 28mm F4.5 L's weight of 60g.
Lens Mounts
The Viltrox 28mm F4.5 L has the Leica L lens mount whereas the Panasonic 14mm F2.5 II ASPH has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
Viltrox 28mm F4.5 L is a prime lens with fixed focal lenght of 28mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42mm.
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.