The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 100mm F2.8 STF GM and the Venus 100mm F2.8 2X Ultra Macro 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 100mm F2.8 2X Ultra Macro is the longer of the two lenses at 125mm. The Sony FE 100mm F2.8 STF GM with a length of 118mm, is 7mm shorter. On the other hand, the Sony FE 100mm F2.8 STF GM has a larger diameter of 85mm compared to the Venus 100mm F2.8 2X Ultra Macro's 72mm diameter.
tt
Below you can find a scaled side-by-side image of Sony FE 100mm F2.8 STF GM and Venus 100mm F2.8 2X Ultra Macro to get a better idea of how their sizes compare in real life.
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. Venus 100mm F2.8 2X Ultra Macro weighs 638g, 8% (62g) lighter than the Sony FE 100mm F2.8 STF GM's weight of 700g.
Filter Threads
The Sony FE 100mm F2.8 STF GM has a filter size of 72mm whereas the Venus 100mm F2.8 2X Ultra Macro 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 72mm filters that we recommend you to consider for the Sony FE 100mm F2.8 STF GM:
And these are the 67mm filters that we recommend for the Venus 100mm F2.8 2X Ultra Macro:
Lens Mounts
Both the Sony FE 100mm F2.8 STF GM and the Venus 100mm F2.8 2X Ultra Macro has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A9 III, Sony A7C Mark II and Sony A7CR.
Venus 100mm F2.8 2X Ultra Macro is also available in Canon EF , Nikon F (FX) and Pentax KAF2 mounts.
Focal Range
Both lenses have the same focal range of
100mm and the fastest aperture of
F2.8.