The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 10-20mm F3.5 EX DC HSM and the Carl Zeiss Distagon T2,8/15 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. Carl Zeiss Distagon T2,8/15 is the longer of the two lenses at 135mm. The Sigma 10-20mm F3.5 EX DC HSM with a length of 88mm, is 47mm shorter. Besides being longer, the Carl Zeiss Distagon T2,8/15 also has a larger diameter of 103mm compared to the Sigma 10-20mm F3.5 EX DC HSM's 87mm 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 10-20mm F3.5 EX DC HSM weighs 520g, which means it is 210g (28%) lighter than the Carl Zeiss Distagon T2,8/15 which has a weight of 730g.
Filter Threads
The Sigma 10-20mm F3.5 EX DC HSM has a filter size of 82mm whereas the Carl Zeiss Distagon T2,8/15 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 82mm filters that we recommend you to consider for the Sigma 10-20mm F3.5 EX DC HSM:
And these are the 95mm filters that we recommend for the Carl Zeiss Distagon T2,8/15:
Lens Mounts
Both the Sigma 10-20mm F3.5 EX DC HSM and the Carl Zeiss Distagon T2,8/15 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 10-20mm F3.5 EX DC HSM is also available in the Pentax KAF3 , Sony Alpha, Sigma SA and Nikon F (DX) mounts.
Carl Zeiss Distagon T2,8/15 is also available in Nikon F (FX) mount.
Focal Range
Sigma 10-20mm F3.5 EX DC HSM has a focal range of 10-20mm and
2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
16-32mm when used on a APS-C / DX format camera.
On the other hand, the Carl Zeiss Distagon T2,8/15 is a prime lens with fixed focal lenght of 15mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 24mm.
