The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic 8-18mm F2.8-4.0 ASPH and the Sony E 16-70mm F4 ZA OSS 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 8-18mm F2.8-4.0 ASPH is the longer of the two lenses at 88mm. The Sony E 16-70mm F4 ZA OSS with a length of 75mm, is 13mm shorter. Besides being longer, the Panasonic 8-18mm F2.8-4.0 ASPH also has a larger diameter of 73mm compared to the Sony E 16-70mm F4 ZA OSS's 67mm diameter.
Below you can find a scaled side-by-side image of Panasonic 8-18mm F2.8-4.0 ASPH and Sony E 16-70mm F4 ZA OSS to get a better idea of how their sizes compare in real life.
Comparison image of the Panasonic 8-18mm F2.8-4.0 ASPH and the Sony E 16-70mm F4 ZA OSS 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 16-70mm F4 ZA OSS weighs 308g, 2% (7g) lighter than the Panasonic 8-18mm F2.8-4.0 ASPH's weight of 315g.
Filter Threads
The Panasonic 8-18mm F2.8-4.0 ASPH has a filter size of 67mm whereas the Sony E 16-70mm F4 ZA OSS has a 55mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Panasonic 8-18mm F2.8-4.0 ASPH:
And these are the 55mm filters that we recommend for the Sony E 16-70mm F4 ZA OSS:
Lens Mounts
The Panasonic 8-18mm F2.8-4.0 ASPH has the Micro Four Thirds lens mount whereas the Sony E 16-70mm F4 ZA OSS has the Sony E lens mount . Some of the latest released cameras that are compatible with these mounts are OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount and Sony ZV-E10 II , Sony A6700 and Sony FX30 for the Sony E Mount.
Focal Range
Panasonic 8-18mm F2.8-4.0 ASPH has a focal range of 8-18mm and
2.3X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
16-36mm when used on a FourThirds format camera.
On the other hand, the Sony E 16-70mm F4 ZA OSS has a focal range of 16-70mm and 4.4X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 24-105mm when used on a APS-C / DX format camera.