The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 35mm F1.4 DG DN Art and the Pentax 07 Mount Shield Lens 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 35mm F1.4 DG DN Art is the longer of the two lenses at 110mm. The Pentax 07 Mount Shield Lens with a length of 7mm, is 103mm shorter. Besides being longer, the Sigma 35mm F1.4 DG DN Art also has a larger diameter of 76mm compared to the Pentax 07 Mount Shield Lens's 41mm 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. Pentax 07 Mount Shield Lens weighs 8g, 98% (637g) lighter than the Sigma 35mm F1.4 DG DN Art's weight of 645g.
Lens Mounts
The Sigma 35mm F1.4 DG DN Art has the Leica L lens mount whereas the Pentax 07 Mount Shield Lens has the Pentax Q 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 , and for the Pentax Q Mount.
Sigma 35mm F1.4 DG DN Art is also available in the Sony E mount.
Focal Range
Sigma 35mm F1.4 DG DN Art is a prime lens with fixed focal lenght of 35mm.
On the other hand, the Pentax 07 Mount Shield Lens is a prime lens with fixed focal lenght of 12mm which has an effective (full-frame 35mm equivalent) focal range of 54.6mm when used on a 1/1.7" format camera.