I can't see the point of quibbling; surely the point is that it's the combination of lens, sensor and software which results in the recorded image.

Of course, not all cameras - not even all four-thirds cameras - have the same sensor or software, so the characteristics of the lens are still very important. And software cannot create information that is not resolved by the lens, or captured by the sensor - though any artifacts of the image capture processing will be recorded in the image, which may be the point that Geoffrey was trying to make.

However ISTR the corrections applied by the Oly software are limited to vignetting and distortion; provided the lens does not have particularly appalling characteristics in these respects, these corrections will not generate significant artifacts, nor will they affect resolution, colour correction etc. to any significant extent. The most likely side effect of these corrections from an image quality point of view would be to push up the noise in the lightened corners of an image when correction for significant vignetting is applied.