The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Olympus ED 14-150mm F4-5.6 II and the Sigma 24mm F1.8 EX DG 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, which means it is 216g (43%) lighter than the Sigma 24mm F1.8 EX DG which has a weight of 500g.
Filter Threads
The Olympus ED 14-150mm F4-5.6 II has a filter size of 58mm whereas the Sigma 24mm F1.8 EX DG has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 58mm filters that we recommend you to consider for the Olympus ED 14-150mm F4-5.6 II:
And these are the 77mm filters that we recommend for the Sigma 24mm F1.8 EX DG:
Lens Mounts
The Olympus ED 14-150mm F4-5.6 II has the Micro Four Thirds lens mount whereas the Sigma 24mm F1.8 EX DG has the Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with these mounts are OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount and Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Sigma 24mm F1.8 EX DG is also available in 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
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.
On the other hand, the 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.
