I took a few shots with the Nocticron on my E-M1 at The Photography Show earlier this week. Like most of us I guess, I've been aware of this lens for a while and have seen sample shots from it. But you know, my little 45/1.8 does a great job and I really couldn't see me spending Nocticron money on something that is just a little bit better. But... I'm really very impressed with what I'm seeing from the test shots I took. It's sharper for sure and the DOF is shallower, but there's something more - a certain "je ne sais quoi" about the images from it. There is a life-like look to them which is quite arresting. I don't know whether it's just the DOF that's giving it "pop", or the exceptional micro-contrast - but either way I like the look. So, I'm considering getting one. Before I do though, I'd love to hear from anyone who has upgraded from the 45/1.8 and whether you think after a period of use and sober reflection whether it's been worth it. If anyone has upgraded and then gone back I'd be interested too. Thanks!