The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 30mm F2.8 DN and the Olympus ED 14-42mm F3.5-5.6 EZ for their suitability to various photography scenarios:
Size and Weight Comparison
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 ED 14-42mm F3.5-5.6 EZ weighs 91g, 32% (44g) lighter than the Sigma 30mm F2.8 DN's weight of 135g.
Lens Mounts
Both the Sigma 30mm F2.8 DN and the Olympus ED 14-42mm F3.5-5.6 EZ has the same Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are , and .
Sigma 30mm F2.8 DN is also available in the Sony E mount.
Focal Range
Sigma 30mm F2.8 DN is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of
45mm when used on a APS-C / DX format camera.
On the other hand, the Olympus ED 14-42mm F3.5-5.6 EZ has a focal range of 14-42mm and 3.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 28-84mm when used on a FourThirds format camera.
