The type of photography that you are planning to use is an important decision factor. Here we have evaluated the HD Pentax-FA 35mm F2 AL and the Fujifilm 18mm F2 R 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-FA 35mm F2 AL is the longer of the two lenses at 45mm. The Fujifilm 18mm F2 R with a length of 41mm, is 4mm shorter. On the other hand, the Fujifilm 18mm F2 R has a larger diameter of 65mm compared to the HD Pentax-FA 35mm F2 AL's 64mm diameter.
Below you can find a scaled side-by-side image of HD Pentax-FA 35mm F2 AL and Fujifilm 18mm F2 R to get a better idea of how their sizes compare in real life.
Comparison image of the HD Pentax-FA 35mm F2 AL and the Fujifilm 18mm F2 R 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. Fujifilm 18mm F2 R weighs 116g, 39% (77g) lighter than the HD Pentax-FA 35mm F2 AL's weight of 193g.
Lens Mounts
The HD Pentax-FA 35mm F2 AL has the Pentax KAF lens mount whereas the Fujifilm 18mm F2 R has the Fujifilm X 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 KAF Mount and Fujifilm X-T30 III , Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X Mount.
Focal Range
HD Pentax-FA 35mm F2 AL is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
52.5mm .
On the other hand, the Fujifilm 18mm F2 R is a prime lens with fixed focal lenght of 18mm which has an effective (full-frame 35mm equivalent) focal range of 27mm when used on a APS-C / DX format camera.
