The type of photography that you are planning to use is an important decision factor. Here we have evaluated the HD Pentax-D FA 50mm F1.4 SDM AW and the Pentax D FA 24-70mm F2.8 ED SDM WR 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 HD Pentax-D FA 50mm F1.4 SDM AW with a length of 106mm, is 4mm 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 HD Pentax-D FA 50mm F1.4 SDM AW's 80mm diameter.
Below you can find a scaled side-by-side image of HD Pentax-D FA 50mm F1.4 SDM AW and Pentax D FA 24-70mm F2.8 ED SDM WR to get a better idea of how their sizes compare in real life.
Comparison image of the HD Pentax-D FA 50mm F1.4 SDM AW and the Pentax D FA 24-70mm F2.8 ED SDM WR 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. Pentax D FA 24-70mm F2.8 ED SDM WR weighs 787g, 13% (123g) lighter than the HD Pentax-D FA 50mm F1.4 SDM AW's weight of 910g.
Lens Mounts
Both the HD Pentax-D FA 50mm F1.4 SDM AW and the Pentax D FA 24-70mm F2.8 ED SDM WR has the same Pentax KAF3 lens mount . Some of the latest released cameras that are compatible with the Pentax KAF3 lenses are Pentax K-3 III Mono , Pentax KF and Pentax K-3 III .
Focal Range
HD Pentax-D FA 50mm F1.4 SDM AW is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
75mm .
On the other hand, the 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 .