The type of photography that you are planning to use is an important decision factor. Here we have evaluated the OM System 17mm F1.8 II and the Sigma 16mm F1.4 DC DN MFT 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 16mm F1.4 DC DN MFT is the longer of the two lenses at 92mm. The OM System 17mm F1.8 II with a length of 36mm, is 56mm shorter. Besides being longer, the Sigma 16mm F1.4 DC DN MFT also has a larger diameter of 72mm compared to the OM System 17mm F1.8 II's 58mm diameter.
Below you can find a scaled side-by-side image of OM System 17mm F1.8 II and Sigma 16mm F1.4 DC DN MFT to get a better idea of how their sizes compare in real life.
Comparison image of the OM System 17mm F1.8 II and the Sigma 16mm F1.4 DC DN MFT Size and Weight 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. OM System 17mm F1.8 II weighs 112g, which means it is 293g (72%) lighter than the Sigma 16mm F1.4 DC DN MFT which has a weight of 405g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Micro Four Thirds Mount for size comparison purposes.
Wideangle Micro Four Thirds Mount
Filter Threads
The OM System 17mm F1.8 II has a filter size of 46mm whereas the Sigma 16mm F1.4 DC DN MFT has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 46mm filters that we recommend you to consider for the OM System 17mm F1.8 II:
And these are the 67mm filters that we recommend for the Sigma 16mm F1.4 DC DN MFT:
Lens Mounts
Both the OM System 17mm F1.8 II and the Sigma 16mm F1.4 DC DN MFT 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-3 Astro , OM System OM-5 II and OM System OM-3 .
Focal Range
OM System 17mm F1.8 II 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.
On the other hand, the Sigma 16mm F1.4 DC DN MFT is a prime lens with fixed focal lenght of 16mm which has an effective (full-frame 35mm equivalent) focal range of 32mm when used on a FourThirds format camera.
