The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Olympus 30mm F3.5 Macro and the Sigma 30mm F2.8 EX DN 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. Olympus 30mm F3.5 Macro is the longer of the two lenses at 60mm. The Sigma 30mm F2.8 EX DN with a length of 39mm, is 21mm shorter. On the other hand, the Sigma 30mm F2.8 EX DN has a larger diameter of 61mm compared to the Olympus 30mm F3.5 Macro's 57mm 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. Olympus 30mm F3.5 Macro weighs 128g, which means it is 7g (5%) lighter than the Sigma 30mm F2.8 EX DN which has a weight of 135g.
Filter Threads
Both the Olympus 30mm F3.5 Macro and the Sigma 30mm F2.8 EX DN have the same Filter thread size of 46mm.
Below are links to the 46mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Olympus 30mm F3.5 Macro and the Sigma 30mm F2.8 EX DN has the same Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are OM System OM-1 II, Panasonic G9 II and OM System OM-5.
Sigma 30mm F2.8 EX DN is also available in Sony E mount.
Focal Range
Both lenses have the same focal range of
30mm but while Olympus 30mm F3.5 Macro has the fastest aperture of
F3.5, the Sigma 30mm F2.8 EX DN's widest aperture value is
F2.8.