The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander 28mm F2.8 Color Skopar SL II and the Venus 25mm F2.8 2.5-5X 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 25mm F2.8 2.5-5X Ultra Macro is the longer of the two lenses at 65mm. The Voigtlander 28mm F2.8 Color Skopar SL II with a length of 25mm, is 40mm shorter. Besides being longer, the Venus 25mm F2.8 2.5-5X Ultra Macro also has a larger diameter of 82mm compared to the Voigtlander 28mm F2.8 Color Skopar SL II's 63mm 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 28mm F2.8 Color Skopar SL II weighs 180g, which means it is 220g (55%) lighter than the Venus 25mm F2.8 2.5-5X Ultra Macro which has a weight of 400g.
Lens Mounts
Both the Voigtlander 28mm F2.8 Color Skopar SL II and the Venus 25mm F2.8 2.5-5X Ultra Macro has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Voigtlander 28mm F2.8 Color Skopar SL II is also available in Nikon F (FX) mount.
Venus 25mm F2.8 2.5-5X Ultra Macro is also available in Nikon F (DX) , Pentax KAF2 and Sony E mounts.
Focal Range
Voigtlander 28mm F2.8 Color Skopar SL II is a prime lens with fixed focal lenght of 28mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
44.8mm.
On the other hand, the 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.