The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samsung D-Xenon 12-24mm F4 ED and the Pentax 12-24mm F4.0 ED AL for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Samsung D-Xenon 12-24mm F4 ED is the longer of the two lenses at 88mm. The Pentax 12-24mm F4.0 ED AL with a length of 84mm, is 4mm shorter. On the other hand, the Pentax 12-24mm F4.0 ED AL has a larger diameter of 88mm compared to the Samsung D-Xenon 12-24mm F4 ED's 84mm diameter.
The weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods.
Lens Mounts
The Samsung D-Xenon 12-24mm F4 ED has the Pentax KAF2 lens mount whereas the Pentax 12-24mm F4.0 ED AL has the Pentax KAF lens mount. Some of the latest released cameras that are compatible with these mounts are , and for the Pentax KAF2 Mount and Pentax KF, Pentax K-3 III and Pentax KP for the Pentax KAF Mount.
Focal Range
Both lenses have the same focal range of 12-24mm and the fastest aperture of F4.0.