The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Venus 25mm F2.8 2.5-5X Ultra Macro and the Sigma 70mm F2.8 DG 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 70mm F2.8 DG Macro is the longer of the two lenses at 106mm. The Venus 25mm F2.8 2.5-5X Ultra Macro with a length of 65mm, is 41mm shorter. On the other hand, the Venus 25mm F2.8 2.5-5X Ultra Macro has a larger diameter of 82mm compared to the Sigma 70mm F2.8 DG Macro's 71mm diameter.
Below you can find a scaled side-by-side image of Venus 25mm F2.8 2.5-5X Ultra Macro and Sigma 70mm F2.8 DG Macro to get a better idea of how their sizes compare in real life.
Comparison image of the Venus 25mm F2.8 2.5-5X Ultra Macro and the Sigma 70mm F2.8 DG 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 25mm F2.8 2.5-5X Ultra Macro weighs 400g, which means it is 115g (22%) lighter than the Sigma 70mm F2.8 DG Macro which has a weight of 515g.
Below you can find the dimension and weight table of the Macro Prime Lenses in Canon EF Mount for size comparison purposes.
Macro Canon EF Mount
Lens Mounts
Both the Venus 25mm F2.8 2.5-5X Ultra Macro and the Sigma 70mm F2.8 DG Macro has the same Canon EF lens mount . Some of the latest released cameras that are compatible with the Canon EF lenses are Blackmagic URSA 12K LF , Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K .
Nikon F (DX) , Pentax KAF2 and Sony E mounts.
Nikon F (FX) , Sigma SA and Sony E mounts.
Focal Range
Venus 25mm F2.8 2.5-5X Ultra Macro is a prime lens with fixed focal lenght of 25mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
40mm .
On the other hand, the Sigma 70mm F2.8 DG Macro is a prime lens with fixed focal lenght of 70mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 112mm .
