The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 15mm F1.7 E and the Venus 8-15mm f2.8 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 8-15mm f2.8 is the longer of the two lenses at 76mm. The Viltrox 15mm F1.7 E with a length of 56mm, is 20mm shorter. Besides being longer, the Venus 8-15mm f2.8 also has a larger diameter of 95mm compared to the Viltrox 15mm F1.7 E's 65mm 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 15mm F1.7 E weighs 180g, which means it is 470g (72%) lighter than the Venus 8-15mm f2.8 which has a weight of 650g.
Lens Mounts
The Viltrox 15mm F1.7 E has the Sony E lens mount whereas the Venus 8-15mm f2.8 has the Nikon Z lens mount. Some of the latest released cameras that are compatible with these mounts are Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount and Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount.
Venus 8-15mm f2.8 is also available in Sony E , Canon RF and Leica L mounts.
Focal Range
Viltrox 15mm F1.7 E is a prime lens with fixed focal lenght of 15mm which has an effective (full-frame 35mm equivalent) focal range of
22.5mm when used on a APS-C / DX format camera.
On the other hand, the Venus 8-15mm f2.8 has a focal range of 8-15mm and 1.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 12 - 22.5mm.