Panasonic Leica DG 12mm f/1.4 Summilux ASPH lens

see also:

• Micro Four Thirds system
• a catalogue of Micro Four Thirds lenses
• Olympus m.ZD 12mm f/2.0 lens
• Panasonic Leica DG 10-25mm f/1.7 lens MFT

• 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

• 12mm f/1.4
• 62mm filter
• 15 elements in 12 groups incl. 2 Asph, 2 UED, 1 ED
• close focus 0.2m
• 240fps lens-drive focus motor
• metal body
• splash proof weather resistant but no rubber seals on lens mount
• aperture ring
• 9 rounded blades
• MF/AF switch
• 70mm long
• 335g
• $US1299

• 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/