The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 150-500mm F5-6.3 and the Olympus 75-300mm f4.8-6.7 II 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 150-500mm F5-6.3 is the longer of the two lenses at 252mm. The Olympus 75-300mm f4.8-6.7 II with a length of 117mm, is 135mm shorter. Besides being longer, the Sigma 150-500mm F5-6.3 also has a larger diameter of 95mm compared to the Olympus 75-300mm f4.8-6.7 II's 69mm 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 75-300mm f4.8-6.7 II weighs 423g, 76% (1357g) lighter than the Sigma 150-500mm F5-6.3's weight of 1780g.
Filter Threads
The Sigma 150-500mm F5-6.3 has a filter size of 86mm whereas the Olympus 75-300mm f4.8-6.7 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 86mm filters that we recommend you to consider for the Sigma 150-500mm F5-6.3:
And these are the 58mm filters that we recommend for the Olympus 75-300mm f4.8-6.7 II:
Lens Mounts
The Sigma 150-500mm F5-6.3 has the Sony Alpha lens mount whereas the Olympus 75-300mm f4.8-6.7 II has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount and OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Sigma 150-500mm F5-6.3 is also available in the Canon EF , Nikon F (FX), Pentax KAF3 and Sigma SA mounts.
Focal Range
Sigma 150-500mm F5-6.3 has a focal range of 150-500mm and
3.3X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
225 - 750mm.
On the other hand, the Olympus 75-300mm f4.8-6.7 II has a focal range of 75-300mm and 4.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 150-600mm when used on a FourThirds format camera.
