The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Pentax D FA 70-200mm F2.8ED and the Fujifilm 16-55mm F2.8 II 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 70-200mm F2.8ED is the longer of the two lenses at 203mm. The Fujifilm 16-55mm F2.8 II with a length of 95mm, is 108mm shorter. Besides being longer, the Pentax D FA 70-200mm F2.8ED also has a larger diameter of 92mm compared to the Fujifilm 16-55mm F2.8 II's 78mm 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. Fujifilm 16-55mm F2.8 II weighs 410g, 76% (1345g) lighter than the Pentax D FA 70-200mm F2.8ED's weight of 1755g.
Filter Threads
The Pentax D FA 70-200mm F2.8ED has a filter size of 77mm whereas the Fujifilm 16-55mm F2.8 II has a 72mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Pentax D FA 70-200mm F2.8ED:
And these are the 72mm filters that we recommend for the Fujifilm 16-55mm F2.8 II:
Lens Mounts
The Pentax D FA 70-200mm F2.8ED has the Pentax KAF3 lens mount whereas the Fujifilm 16-55mm F2.8 II 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 KAF3 Mount and Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X Mount.
Focal Range
Pentax D FA 70-200mm F2.8ED has a focal range of 70-200mm 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
105 - 300mm.
On the other hand, the Fujifilm 16-55mm F2.8 II has a focal range of 16-55mm and 3.4X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 24-82.5mm when used on a APS-C / DX format camera.