The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 105mm F2.8 DG DN Macro 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. Sigma 105mm F2.8 DG DN Macro is the longer of the two lenses at 134mm. The Venus 100mm F2.8 2X Ultra Macro with a length of 125mm, is 9mm shorter. Besides being longer, the Sigma 105mm F2.8 DG DN Macro also has a larger diameter of 74mm compared to the Venus 100mm F2.8 2X Ultra Macro's 72mm diameter.
Below you can find a scaled side-by-side image of Sigma 105mm F2.8 DG DN Macro and Venus 100mm F2.8 2X Ultra Macro to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 105mm F2.8 DG DN Macro and the Venus 100mm F2.8 2X Ultra Macro Size and Weight 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, 10% (77g) lighter than the Sigma 105mm F2.8 DG DN Macro's weight of 715g.
Filter Threads
The Sigma 105mm F2.8 DG DN Macro has a filter size of 62mm 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 62mm filters that we recommend you to consider for the Sigma 105mm F2.8 DG DN Macro:
And these are the 67mm filters that we recommend for the Venus 100mm F2.8 2X Ultra Macro:
Lens Mounts
The Sigma 105mm F2.8 DG DN Macro has the Leica L lens mount whereas the Venus 100mm F2.8 2X Ultra Macro has the Canon EF lens mount . Some of the latest released cameras that are compatible with these mounts are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Blackmagic URSA 12K LF , Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Sigma 105mm F2.8 DG DN Macro is also available in the Sony E mount.
Venus 100mm F2.8 2X Ultra Macro is also available in Nikon F (FX) , Pentax KAF2 and Sony E mounts.
Focal Range
Sigma 105mm F2.8 DG DN Macro is a prime lens with fixed focal lenght of 105mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
157.5mm .
On the other hand, the Venus 100mm F2.8 2X Ultra Macro is a prime lens with fixed focal lenght of 100mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 160mm .