Panasonic Lumix G 25 mm f/1.7 ASPH. review - Distortion

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Panasonic Lumix G 25 mm f/1.7 ASPH.

11 March 2016

Arkadiusz Olech

6. Distortion

Let’s start this chapter by comparing the results in this category of different 25 mm lenses designed for the Micro 4/3 system.

	Panasonic 1.7/25	Panasonic 1.4/25	Olympus 1.8/25	Voigtlander 0.95/25
JPEG	−0.20%	−0.22%	−0.82%	−1.70%
RAW	−1.99%	−2.30%	−1.12%	−1.70%

There is simply no point of analyzing JPEG files data because more often than not they simply show the performance of the software of the camera. Only RAW files developed by the dcraw program tell you how the optics deal with distortion. The tested Panasonic showed its barrel form of −1.99%. It is not a result you can be proud of but there are no serious reasons to complain either. We’ve seen full frame standard lenses which had a level of −2%. What’s interesting, the cheap Panasonic manages this aberration better than the significantly more expensive and faster Panaleica 1.4/25. Still in this class of equipment the Olympus 1.8/25 outdistances everything else, remaining the best when it comes to the distortion correction.

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