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 Tamron 24mm F2.8 Di III OSD M1:2 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. Tamron 24mm F2.8 Di III OSD M1:2 is the longer of the two lenses at 64mm. The Viltrox 15mm F1.7 E with a length of 56mm, is 8mm shorter. Besides being longer, the Tamron 24mm F2.8 Di III OSD M1:2 also has a larger diameter of 73mm 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 35g (16%) lighter than the Tamron 24mm F2.8 Di III OSD M1:2 which has a weight of 215g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Sony E Mount for size comparison purposes.
Wideangle Lenses in Sony E Mount for Size Comparison
Filter Threads
The Viltrox 15mm F1.7 E has a filter size of 58mm whereas the Tamron 24mm F2.8 Di III OSD M1:2 has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 58mm filters that we recommend you to consider for the Viltrox 15mm F1.7 E:
And these are the 67mm filters that we recommend for the Tamron 24mm F2.8 Di III OSD M1:2:
Lens Mounts
Both the Viltrox 15mm F1.7 E and the Tamron 24mm F2.8 Di III OSD M1:2 has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony ZV-E10 II, Sony A6700 and Sony FX30.
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 Tamron 24mm F2.8 Di III OSD M1:2 is a prime lens with fixed focal lenght of 24mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 36mm.