The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 28mm F4.5 Z and the Venus Laowa 15mm f5 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. Venus Laowa 15mm f5 is the longer of the two lenses at 25mm. The Viltrox 28mm F4.5 Z with a length of 22mm, is 3mm shorter. On the other hand, the Viltrox 28mm F4.5 Z has a larger diameter of 65mm compared to the Venus Laowa 15mm f5's 53mm 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. Viltrox 28mm F4.5 Z weighs 88g, which means it is 50g (36%) lighter than the Venus Laowa 15mm f5 which has a weight of 138g.
Lens Mounts
The Viltrox 28mm F4.5 Z has the Nikon Z lens mount whereas the Venus Laowa 15mm f5 has the Sony E lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount and Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount.
Venus Laowa 15mm f5 is also available in Nikon Z , Canon RF and Leica L mounts.
Focal Range
Viltrox 28mm F4.5 Z 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 Venus Laowa 15mm f5 is a prime lens with fixed focal lenght of 15mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 22.5mm.