The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander 75mm f1.5 E and the Sony FE 100mm F2.8 STF GM 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. Sony FE 100mm F2.8 STF GM is the longer of the two lenses at 118mm. The Voigtlander 75mm f1.5 E with a length of 76mm, is 42mm shorter. Besides being longer, the Sony FE 100mm F2.8 STF GM also has a larger diameter of 85mm compared to the Voigtlander 75mm f1.5 E's 74mm 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. Voigtlander 75mm f1.5 E weighs 530g, which means it is 170g (24%) lighter than the Sony FE 100mm F2.8 STF GM which has a weight of 700g.
Below you can find the dimension and weight table of the Telephoto Prime Lenses in Sony E Mount for size comparison purposes.
Telephoto Lenses in Sony E Mount for Size Comparison
Filter Threads
The Voigtlander 75mm f1.5 E has a filter size of 62mm whereas the Sony FE 100mm F2.8 STF GM has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the Voigtlander 75mm f1.5 E:
And these are the 72mm filters that we recommend for the Sony FE 100mm F2.8 STF GM:
Lens Mounts
Both the Voigtlander 75mm f1.5 E and the Sony FE 100mm F2.8 STF GM 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
Voigtlander 75mm f1.5 E is a prime lens with fixed focal lenght of 75mm which has an effective (full-frame 35mm equivalent) focal range of
112.5mm when used on a 35mm FF format camera.
On the other hand, the Sony FE 100mm F2.8 STF GM is a prime lens with fixed focal lenght of 100mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 150mm.