Panasonic Leica DG 12mm f/1.4 Summilux ASPH lens

introduction

announced June 2016
high image quality, well made wide angle lens giving eq. of 24mm field of view in full frame terms
much larger and heavier (significantly smaller and much lighter than the Olympus mZD 7-14mm f/2.8 PRO lens), and even more expensive than the Olympus m.ZD 12mm f/2.0 lens but it does give sharper images and that extra stop of aperture

Imaging Resource's BEST wide angle prime lens of 2016

ePhotozine
- extremely sharp in the centre even wide open, significantly softer at edges, sharpest at f/2.8
- -0.38% of barrelling
- v. low CA
- produces very impressive results, images are crisp and clean and visually very satisfying.
- resistance to flare is excellent
photographyblog
- some vignetting
- nice bokeh
cameralabs
- comparisons with the Olympus 12mm f/2 and Olympus 7-14mm f/2.8
- nice bokeh but cats-eye squashed oval shape bokeh highlights at their maximum apertures
- much better closer focus magnification than the Olympus 12mm f/2 as lengthwise covers only 124mm compared with 171mm on the Olympus even though both are rated as close focus 0.2m
- less distortion than the Olympus 12mm f/2
- sharper edges even at f/2 compared to the Olympus 12mm f/2, but similar in the centre
http://www.mirrorlessons.com/2016/07/01/panasonic-leica-12mm-f1-4-sample-images/
mirrorlessons.com's review
- excellent apart from flare into direct sunlight
http://www.lenstip.com/index.php?test=obiektywu&test_ob=505
- de-centering and coma issues on their copy
- sharpest at f/4; 1.5EV vignetting wide open
https://blog.mingthein.com/2018/02/25/review-the-panasonic-leica-12mm-f1-4-asph-for-micro-four-thirds/