The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 150-600mm F5-6.3 DG OS HSM S and the Sigma 50-500mm F4.5-6.3 DG OS HSM 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 150-600mm F5-6.3 DG OS HSM S is the longer of the two lenses at 290mm. The Sigma 50-500mm F4.5-6.3 DG OS HSM with a length of 219mm, is 71mm shorter. Besides being longer, the Sigma 150-600mm F5-6.3 DG OS HSM S also has a larger diameter of 121mm compared to the Sigma 50-500mm F4.5-6.3 DG OS HSM's 104mm 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. Sigma 50-500mm F4.5-6.3 DG OS HSM weighs 1970g, 31% (890g) lighter than the Sigma 150-600mm F5-6.3 DG OS HSM S's weight of 2860g.
Filter Threads
The Sigma 150-600mm F5-6.3 DG OS HSM S has a filter size of 105mm whereas the Sigma 50-500mm F4.5-6.3 DG OS HSM has a 95mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 105mm filters that we recommend you to consider for the Sigma 150-600mm F5-6.3 DG OS HSM S:
And these are the 95mm filters that we recommend for the Sigma 50-500mm F4.5-6.3 DG OS HSM:
Lens Mounts
The Sigma 150-600mm F5-6.3 DG OS HSM S has the Sigma SA lens mount whereas the Sigma 50-500mm F4.5-6.3 DG OS HSM has the Pentax KAF3 lens mount. Some of the latest released cameras that are compatible with these mounts are Sigma Quattro, Sigma Quattro H and Sigma SD1 Merrill for the Sigma SA Mount and , and for the Pentax KAF3 Mount.
Sigma 150-600mm F5-6.3 DG OS HSM S is also available in the Canon EF and Nikon F (FX) mounts.
Sigma 50-500mm F4.5-6.3 DG OS HSM is also available in Canon EF , Sony Alpha, Sigma SA and Nikon F (FX) mounts.
Focal Range
Sigma 150-600mm F5-6.3 DG OS HSM S has a focal range of 150-600mm and
4.0X zoom ratio .
On the other hand, the Sigma 50-500mm F4.5-6.3 DG OS HSM has a focal range of 50-500mm and 10.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 75 - 750mm.