The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tokina atx-m 56mm F1.4 E and the Sigma 45mm F2.8 DG DN C 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. Tokina atx-m 56mm F1.4 E is the longer of the two lenses at 72mm. The Sigma 45mm F2.8 DG DN C with a length of 46mm, is 26mm shorter. Besides being longer, the Tokina atx-m 56mm F1.4 E also has a larger diameter of 65mm compared to the Sigma 45mm F2.8 DG DN C's 64mm 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 45mm F2.8 DG DN C weighs 215g, 31% (100g) lighter than the Tokina atx-m 56mm F1.4 E's weight of 315g.
Filter Threads
The Tokina atx-m 56mm F1.4 E has a filter size of 52mm whereas the Sigma 45mm F2.8 DG DN C has a 55mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 52mm filters that we recommend you to consider for the Tokina atx-m 56mm F1.4 E:
And these are the 55mm filters that we recommend for the Sigma 45mm F2.8 DG DN C:
Lens Mounts
The Tokina atx-m 56mm F1.4 E has the Sony E lens mount whereas the Sigma 45mm F2.8 DG DN C has the Leica L lens mount. Some of the latest released cameras that are compatible with these mounts are Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount and Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount.
Sigma 45mm F2.8 DG DN C is also available in Sony E mount.
Focal Range
Tokina atx-m 56mm F1.4 E is a prime lens with fixed focal lenght of 56mm which has an effective (full-frame 35mm equivalent) focal range of
84mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 45mm F2.8 DG DN C is a prime lens with fixed focal lenght of 45mm.
