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 10-17mm F3.5-4.5 ED Fisheye 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. Samsung D-Xenon 12-24mm F4 ED is the longer of the two lenses at 88mm. The Pentax 10-17mm F3.5-4.5 ED Fisheye with a length of 72mm, is 16mm shorter. Besides being longer, the Samsung D-Xenon 12-24mm F4 ED also has a larger diameter of 84mm compared to the Pentax 10-17mm F3.5-4.5 ED Fisheye's 68mm 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 10-17mm F3.5-4.5 ED Fisheye weighs 320g, 25% (110g) lighter than the Samsung D-Xenon 12-24mm F4 ED's weight of 430g.
Lens Mounts
The Samsung D-Xenon 12-24mm F4 ED has the Pentax KAF2 lens mount whereas the Pentax 10-17mm F3.5-4.5 ED Fisheye 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 K-3 III Mono, Pentax KF and Pentax K-3 III for the Pentax KAF Mount.
Focal Range
Samsung D-Xenon 12-24mm F4 ED has a focal range of 12-24mm and
2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
18-36mm when used on a APS-C / DX format camera.
On the other hand, the Pentax 10-17mm F3.5-4.5 ED Fisheye has a focal range of 10-17mm and 1.7X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 15-25.5mm when used on a APS-C / DX format camera.
