The type of photography that you are planning to use is an important decision factor. Here we have evaluated the TTArtisan 17mm F4 TS and the Viltrox 15mm F1.7 E 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. TTArtisan 17mm F4 TS is the longer of the two lenses at 114mm. The Viltrox 15mm F1.7 E with a length of 56mm, is 58mm shorter. Besides being longer, the TTArtisan 17mm F4 TS also has a larger diameter of 88mm 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, 82% (871g) lighter than the TTArtisan 17mm F4 TS's weight of 1051g.
Lens Mounts
The TTArtisan 17mm F4 TS has the Leica L lens mount whereas the Viltrox 15mm F1.7 E has the Sony E lens mount. Some of the latest released cameras that are compatible with these mounts are , and for the Leica L Mount and Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount.
TTArtisan 17mm F4 TS is also available in the Sony E , Fujifilm G, Nikon Z and Canon RF mounts.
Focal Range
TTArtisan 17mm F4 TS is a prime lens with fixed focal lenght of 17mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
25.5mm.
On the other hand, the 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.
