The last tine I tried the Panasonic 20mm F1.7 was more than 10 years ago, and it did not leave a good impression on me. From my memory with limited experience shooting with the lens, the AF was the slowest among all Micro Four Thirds lenses and there was something unnatural and not pleasing about the image rendering from the lens. Therefore I never bothered to look at the lens at all. I must admit the Panasonic 20mm F1.7 is a favorite lens among the Micro Four Thirds community, especially the street shooters and I thought it would be a great time to revisit the lens. I found one in the used market recently and I did some shutter therapy with my beloved Panasonic GM1. You can see my video I have made on the same topic here (click).