The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony E 35mm F1.8 OSS and the HD Pentax-D FA 50mm F1.4 SDM AW 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. HD Pentax-D FA 50mm F1.4 SDM AW is the longer of the two lenses at 106mm. The Sony E 35mm F1.8 OSS with a length of 45mm, is 61mm shorter. Besides being longer, the HD Pentax-D FA 50mm F1.4 SDM AW also has a larger diameter of 80mm compared to the Sony E 35mm F1.8 OSS's 63mm diameter.
Below you can find a scaled side-by-side image of Sony E 35mm F1.8 OSS and HD Pentax-D FA 50mm F1.4 SDM AW to get a better idea of how their sizes compare in real life.
Comparison image of the Sony E 35mm F1.8 OSS and the HD Pentax-D FA 50mm F1.4 SDM AW 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. Sony E 35mm F1.8 OSS weighs 155g, which means it is 755g (82%) lighter than the HD Pentax-D FA 50mm F1.4 SDM AW which has a weight of 910g.
Lens Mounts
The Sony E 35mm F1.8 OSS has the Sony E lens mount whereas the HD Pentax-D FA 50mm F1.4 SDM AW has the Pentax KAF3 lens mount . Some of the latest released cameras that are compatible with these mounts are Sony ZV-E10 II , Sony A6700 and Sony FX30 for the Sony E Mount and Pentax K-3 III Mono , Pentax KF and Pentax K-3 III for the Pentax KAF3 Mount.
Focal Range
Sony E 35mm F1.8 OSS is a prime lens with fixed focal lenght of 35mm which has an effective (full-frame 35mm equivalent) focal range of
52.5mm when used on a APS-C / DX format camera.
On the other hand, the 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 .
