>>3954950This is absolutely not true, you are a cock-gobbling brand fetishist.
>>3954933>or is it just a brand name slapped on chink lenses?Correct. The expensive ones that say "leica" are the good ones, but they have absolutely fuck all to do with leica, and by comparison to real lenses for real cameras they are mostly all underperforming, overpriced, and even very expensive ones rely heavily on software correction for vignetting, CA and distortion (ie they are shitty lenses). Also remember that MFT's heyday was about 8 years ago, so most of the lenses are at least that old, and so were only designed to be barely adequate on 12mp sensors. Add to that the fact that sample variation is exacerbated by the resolution demands of small pixel pitch MFT sensors, and that if you try to stop them down to combat abberations you get fucked by diffraction at f/8.
Seriously, mft is a meme and you should avoid it, but if the mft cock is already in your mouth then avoid doubling down by buying secondhand, or newer released lenses, and remember the Olympus lenses work too and are probably sharper and cheaper than whatever leica meme you've been contemplating.