The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 35mm F1.4 DG HSM and the Olympus M 17mm f1.8 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 35mm F1.4 DG HSM is the longer of the two lenses at 94mm. The Olympus M 17mm f1.8 with a length of 36mm, is 58mm shorter. Besides being longer, the Sigma 35mm F1.4 DG HSM also has a larger diameter of 77mm compared to the Olympus M 17mm f1.8's 58mm 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 M 17mm f1.8 weighs 120g, 81% (545g) lighter than the Sigma 35mm F1.4 DG HSM's weight of 665g.
Filter Threads
The Sigma 35mm F1.4 DG HSM has a filter size of 67mm whereas the Olympus M 17mm f1.8 has a 46mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Sigma 35mm F1.4 DG HSM:
And these are the 46mm filters that we recommend for the Olympus M 17mm f1.8:
Lens Mounts
The Sigma 35mm F1.4 DG HSM has the Pentax KAF3 lens mount whereas the Olympus M 17mm f1.8 has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are , and for the Pentax KAF3 Mount and OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Sigma 35mm F1.4 DG HSM is also available in the Canon EF , Sony Alpha, Sigma SA, Nikon F (FX) and Leica L mounts.
Focal Range
Sigma 35mm F1.4 DG HSM is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
52.5mm.
On the other hand, the Olympus M 17mm f1.8 is a prime lens with fixed focal lenght of 17mm which has an effective (full-frame 35mm equivalent) focal range of 34mm when used on a FourThirds format camera.
