The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24mm F1.4 DG DN A and the Sigma 28mm F1.4 DG HSM A 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 28mm F1.4 DG HSM A is the longer of the two lenses at 108mm. The Sigma 24mm F1.4 DG DN A with a length of 96mm, is 12mm shorter. Besides being longer, the Sigma 28mm F1.4 DG HSM A also has a larger diameter of 83mm compared to the Sigma 24mm F1.4 DG DN A's 76mm 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 24mm F1.4 DG DN A weighs 520g, which means it is 440g (45%) lighter than the Sigma 28mm F1.4 DG HSM A which has a weight of 960g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Leica L Mount for size comparison purposes.
Wideangle Lenses in Leica L Mount for Size Comparison
Filter Threads
The Sigma 24mm F1.4 DG DN A has a filter size of 72mm whereas the Sigma 28mm F1.4 DG HSM A 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 72mm filters that we recommend you to consider for the Sigma 24mm F1.4 DG DN A:
And these are the 77mm filters that we recommend for the Sigma 28mm F1.4 DG HSM A:
Lens Mounts
Both the Sigma 24mm F1.4 DG DN A and the Sigma 28mm F1.4 DG HSM A has the same Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3, Panasonic S5 II and Panasonic S5 II X.
Sigma 24mm F1.4 DG DN A is also available in Sony E mount.
Sigma 28mm F1.4 DG HSM A is also available in Canon EF , Nikon F (FX), Sigma SA and Sony E mounts.
Focal Range
Sigma 24mm F1.4 DG DN A is a prime lens with fixed focal lenght of 24mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
36mm.
On the other hand, the Sigma 28mm F1.4 DG HSM A is a prime lens with fixed focal lenght of 28mm.