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Panasonic Leica-D Summilux 25mm f/1.4 lens for Four Thirds

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Here is the lens mounted on a Panasonic GH-1 Micro Four Thirds camera via an adapter and with an Olympus WCON-08B PRO 0.8x wide converter on the front of it which makes the whole lens look much bigger but effectively makes it a 20mm focal length lens just for fun:



  • 25mm focal length = 50mm field of view on 35mm full frame camera
  • f/1.4 aperture
  • aperture ring but only functions on Panasonic cameras not Olympus cameras
  • 62mm filter thread non-rotating
  • 10 elements in 9 groups inc. 1x aspherical, 1x Super-ED and 3x ED elements
  • nice bokeh
  • sharp wide open and sharpest at f/2.0
  • close focus 0.38m
  • 1.1EV vignetting; 0.5% barrel distortion
  • 1.2px CA wide open increasing to 1.9px at f/5.6
  • 75 x 78 mm
  • 510g
  • RRP $A1799 in 2009


    • stunningly sharp in centre even wide open, peaking at f/2.0 which broke the resolution records for!
    • edges are sharp at all apertures just not as incredibly sharp as the centre
    • 1.1EV vignetting at f/1.4
    • minimal barrel distortion (0.5%)
    • lateral CA increases as aperture is stopped down

photos taken with this lens

photo/pand25mm.txt · Last modified: 2017/05/01 18:19 by gary1

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