The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Pentax D FA 24-70mm F2.8 ED SDM WR and the Panasonic Leica 12-35mm F2.8 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. Pentax D FA 24-70mm F2.8 ED SDM WR is the longer of the two lenses at 110mm. The Panasonic Leica 12-35mm F2.8 with a length of 74mm, is 36mm shorter. Besides being longer, the Pentax D FA 24-70mm F2.8 ED SDM WR also has a larger diameter of 89mm compared to the Panasonic Leica 12-35mm F2.8's 68mm diameter.
Below you can find a scaled side-by-side image of Pentax D FA 24-70mm F2.8 ED SDM WR and Panasonic Leica 12-35mm F2.8 to get a better idea of how their sizes compare in real life.
Comparison image of the Pentax D FA 24-70mm F2.8 ED SDM WR and the Panasonic Leica 12-35mm F2.8 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 Leica 12-35mm F2.8 weighs 306g, 61% (481g) lighter than the Pentax D FA 24-70mm F2.8 ED SDM WR's weight of 787g.
Lens Mounts
The Pentax D FA 24-70mm F2.8 ED SDM WR has the Pentax KAF3 lens mount whereas the Panasonic Leica 12-35mm F2.8 has the Micro Four Thirds lens mount . Some of the latest released cameras that are compatible with these mounts are Pentax K-3 III Mono , Pentax KF and Pentax K-3 III for the Pentax KAF3 Mount and OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
Pentax D FA 24-70mm F2.8 ED SDM WR has a focal range of 24-70mm and
2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
36 - 105mm .
On the other hand, the Panasonic Leica 12-35mm F2.8 has a focal range of 12-35mm and 2.9X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 24-70mm when used on a FourThirds format camera.
