The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 14-24mm F2.8 DG DN Art and the Olympus ED 7-14mm F2.8 PRO 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 14-24mm F2.8 DG DN Art is the longer of the two lenses at 131mm. The Olympus ED 7-14mm F2.8 PRO with a length of 106mm, is 25mm shorter. Besides being longer, the Sigma 14-24mm F2.8 DG DN Art also has a larger diameter of 85mm compared to the Olympus ED 7-14mm F2.8 PRO's 79mm diameter.
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Below you can find a scaled side-by-side image of Sigma 14-24mm F2.8 DG DN Art and Olympus ED 7-14mm F2.8 PRO to get a better idea of how their sizes compare in real life.
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 7-14mm F2.8 PRO weighs 534g, 32% (261g) lighter than the Sigma 14-24mm F2.8 DG DN Art's weight of 795g.
Lens Mounts
The Sigma 14-24mm F2.8 DG DN Art has the Leica L lens mount whereas the Olympus ED 7-14mm F2.8 PRO has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3, Panasonic S5 II and Panasonic S5 II X for the Leica L Mount and OM System OM-1 II, Panasonic G9 II and OM System OM-5 for the Micro Four Thirds Mount.
Sigma 14-24mm F2.8 DG DN Art is also available in Sony E mount.
Focal Range
Sigma 14-24mm F2.8 DG DN Art has a focal range of 14-24mm and
1.7X zoom ratio .
On the other hand, the Olympus ED 7-14mm F2.8 PRO has a focal range of 7-14mm and 2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 14-28mm when used on a FourThirds format camera.