The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24mm F1.8 EX DG and the Olympus ED 14-150mm F4-5.6 II 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 14-150mm F4-5.6 II weighs 284g, 43% (216g) lighter than the Sigma 24mm F1.8 EX DG's weight of 500g.
Filter Threads
The Sigma 24mm F1.8 EX DG has a filter size of 77mm whereas the Olympus ED 14-150mm F4-5.6 II has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Sigma 24mm F1.8 EX DG:
And these are the 58mm filters that we recommend for the Olympus ED 14-150mm F4-5.6 II:
Lens Mounts
The Sigma 24mm F1.8 EX DG has the Nikon F (FX) lens mount whereas the Olympus ED 14-150mm F4-5.6 II has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount and OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Sigma 24mm F1.8 EX DG is also available in the Canon EF , Nikon F (FX), Four Thirds, Pentax KAF, Sony Alpha, Sigma SA, Canon EF, Pentax KAF, Sony Alpha and Sigma SA mounts.
Focal Range
Sigma 24mm F1.8 EX DG is a prime lens with fixed focal lenght of 28mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42mm.
On the other hand, the Olympus ED 14-150mm F4-5.6 II has a focal range of 14-150mm and 10.7X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 28-300mm when used on a FourThirds format camera.
