Thanks but nobody answeered me really.There's no doubt that they did a comparison between these zuiko.which of these two glasses is technically better(contrast,sharpness,acutance,,,,)do someone help me?...i would to know only this thing...not the personal opinion.I know that all zuiko glasses are good/magnificent in some cases...but which zuiko 50 mm is better technically and objectively?I know that a magazine(i don't remeber the name) long time ago made a comparaison of these two lenses and won the 50 1.8. for its best performance,Did you rember this article?thank you very much