The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 50-100mm F1.8 A and the Sigma 50-150mm F2.8 EX DC 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 50-150mm F2.8 EX DC OS HSM is the longer of the two lenses at 198mm. The Sigma 50-100mm F1.8 A with a length of 171mm, is 27mm shorter. On the other hand, the Sigma 50-100mm F1.8 A has a larger diameter of 94mm compared to the Sigma 50-150mm F2.8 EX DC OS HSM's 86mm 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 50-150mm F2.8 EX DC OS HSM weighs 1350g, 9% (140g) lighter than the Sigma 50-100mm F1.8 A's weight of 1490g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Canon EF Mount for size comparison purposes.
Telephoto Lenses in Canon EF Mount for Size Comparison
Filter Threads
The Sigma 50-100mm F1.8 A has a filter size of 82mm whereas the Sigma 50-150mm F2.8 EX DC OS HSM 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 82mm filters that we recommend you to consider for the Sigma 50-100mm F1.8 A:
And these are the 77mm filters that we recommend for the Sigma 50-150mm F2.8 EX DC OS HSM:
Lens Mounts
Both the Sigma 50-100mm F1.8 A and the Sigma 50-150mm F2.8 EX DC OS HSM has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon T8i, Canon 90D and Canon SL3.
Sigma 50-100mm F1.8 A is also available in the Nikon F (DX) and Sigma SA mounts.
Sigma 50-150mm F2.8 EX DC OS HSM is also available in Nikon F (DX) and Sigma SA mounts.
Focal Range
Sigma 50-100mm F1.8 A has a focal range of 50-100mm and
2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
80-160mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 50-150mm F2.8 EX DC OS HSM has a focal range of 50-150mm and 3.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 80-240mm when used on a APS-C / DX format camera.
