SUMMARY
Jacek Sopotnicki's review highlights the Sony FE 20-70mm f/4 G lens's distinctive 20-70mm focal range, setting it apart from other zooms. While sharp corner-to-corner at 70mm wide open, the 20mm end needs f/5.6 or f/8 for optimal corner sharpness, and exhibits notable barrel distortion and vignetting at f/4. The lens performs well in close-up shots and offers respectable bokeh, even in portraiture. Autofocus is fast and quiet across various Sony bodies, and focus breathing is controlled, making it suitable for video. Priced around $1,400-$1,500, its value is compared to the less expensive Panasonic Lumix S 20-60mm, with the Sony's primary advantage being its wider 20mm starting point.
TAKEAWAYS
The Sony FE 20-70mm f/4 G lens features a unique 20-70mm focal range.
Sharpness is excellent at 70mm f/4, but 20mm corners require stopping down.
Autofocus is fast and quiet, with controlled focus breathing suitable for video.
The lens is priced around $1,400-$1,500, offering a distinct advantage with its 20mm wide end.