The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon 16-35mm F2.8L III and the Panasonic 25mm F1.4 II 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. Canon 16-35mm F2.8L III is the longer of the two lenses at 128mm. The Panasonic 25mm F1.4 II ASPH with a length of 55mm, is 73mm shorter. Besides being longer, the Canon 16-35mm F2.8L III also has a larger diameter of 89mm compared to the Panasonic 25mm F1.4 II ASPH's 63mm diameter.
Below you can find a scaled side-by-side image of Canon 16-35mm F2.8L III and Panasonic 25mm F1.4 II ASPH to get a better idea of how their sizes compare in real life.
Comparison image of the Canon 16-35mm F2.8L III and the Panasonic 25mm F1.4 II ASPH 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. Panasonic 25mm F1.4 II ASPH weighs 205g, 74% (585g) lighter than the Canon 16-35mm F2.8L III's weight of 790g.
Filter Threads
The Canon 16-35mm F2.8L III has a filter size of 82mm whereas the Panasonic 25mm F1.4 II ASPH has a 46mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Canon 16-35mm F2.8L III:
And these are the 46mm filters that we recommend for the Panasonic 25mm F1.4 II ASPH:
Lens Mounts
The Canon 16-35mm F2.8L III has the Canon EF lens mount whereas the Panasonic 25mm F1.4 II ASPH has the Micro Four Thirds lens mount . Some of the latest released cameras that are compatible with these mounts are Blackmagic URSA 12K LF , Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF 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
Canon 16-35mm F2.8L III has a focal range of 16-35mm and
2.2X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
25.6 - 56mm .
On the other hand, the Panasonic 25mm F1.4 II ASPH is a prime lens with fixed focal lenght of 25mm which has an effective (full-frame 35mm equivalent) focal range of 50mm when used on a FourThirds format camera.
