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Lens review

Panasonic G X VARIO 12-35 mm f/2.8 ASPH. P.O.I.S

18 March 2013
Arkadiusz Olech

5. Chromatic and spherical aberration


Chromatic aberration

The tested lens has almost no problems with the longitudinal chromatic aberration. It can be clearly noticed in photos below.

Panasonic G X VARIO 12-35 mm f/2.8 ASPH. P.O.I.S - Chromatic and spherical aberration



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Also the lateral chromatic aberration is nothing we should worry about. At longer focal lengths it is imperceptible, only at 12 mm it becomes medium but after stopping down it returns near low level.

Panasonic G X VARIO 12-35 mm f/2.8 ASPH. P.O.I.S - Chromatic and spherical aberration

Panasonic G X VARIO 12-35 mm f/2.8 ASPH. P.O.I.S - Chromatic and spherical aberration

Spherical aberration

The lens didn’t have any ‘focus shift’ effect which suggests that spherical aberration cannot be high. Still it is not corrected in a perfect way which you can notice glancing at the photos below. They show a defocused light circle in front of and behind the focus. The light spread and intensity differs greatly – where in one case you have a local maximum, in the other you get a minimum.

Panasonic G X VARIO 12-35 mm f/2.8 ASPH. P.O.I.S - Chromatic and spherical aberration