The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic S 14-28mm F4-5.6 and the Panasonic 7-14mm F4 ASPH 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. Panasonic S 14-28mm F4-5.6 is the longer of the two lenses at 90mm. The Panasonic 7-14mm F4 ASPH with a length of 83mm, is 7mm shorter. Besides being longer, the Panasonic S 14-28mm F4-5.6 also has a larger diameter of 84mm compared to the Panasonic 7-14mm F4 ASPH's 70mm 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. Panasonic 7-14mm F4 ASPH weighs 300g, 13% (45g) lighter than the Panasonic S 14-28mm F4-5.6's weight of 345g.
Lens Mounts
The Panasonic S 14-28mm F4-5.6 has the Leica L lens mount whereas the Panasonic 7-14mm F4 ASPH has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
Panasonic S 14-28mm F4-5.6 has a focal range of 14-28mm and
2.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
21 - 42mm.
On the other hand, the Panasonic 7-14mm F4 ASPH has a focal range of 7-14mm and 2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 14-28mm when used on a FourThirds format camera.
