The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 14-24mm F2.8 DG DN Art and the Panasonic 25mm F1.4 II ASPH 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 14-24mm F2.8 DG DN Art is the longer of the two lenses at 131mm. The Panasonic 25mm F1.4 II ASPH with a length of 55mm, is 76mm shorter. Besides being longer, the Sigma 14-24mm F2.8 DG DN Art also has a larger diameter of 85mm compared to the Panasonic 25mm F1.4 II ASPH's 63mm diameter.
Below you can find a scaled side-by-side image of Sigma 14-24mm F2.8 DG DN Art and Panasonic 25mm F1.4 II ASPH to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 14-24mm F2.8 DG DN Art and the Panasonic 25mm F1.4 II ASPH Size and Weight 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. Panasonic 25mm F1.4 II ASPH weighs 205g, 74% (590g) lighter than the Sigma 14-24mm F2.8 DG DN Art's weight of 795g.
Lens Mounts
The Sigma 14-24mm F2.8 DG DN Art has the Leica L lens mount whereas the Panasonic 25mm F1.4 II ASPH has the Micro Four Thirds lens mount . Some of the latest released cameras that are compatible with these mounts are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Sigma 14-24mm F2.8 DG DN Art is also available in the Sony E mount.
Focal Range
Sigma 14-24mm F2.8 DG DN Art has a focal range of 14-24mm and
1.7X zoom ratio .
On the other hand, the Panasonic 25mm F1.4 II ASPH is a prime lens with fixed focal lenght of 25mm which has an effective (full-frame 35mm equivalent) focal range of 50mm when used on a FourThirds format camera.