Received the lens today. My first impression: The ring controls are silky smooth. I compare it to another lens I own, the SLR Magic 25mm cine lens, which has much more drag in the control ring. And of course, every vintage lens I've used has a lot more drag in the focus and aperture rings. However, this lens felt incredibly smooth the moment I took it out of the box. I put it on my Blackmagic Pocket 4K and I have to say the bokeh is beautiful. However, it is difficult to get this ultra-fine focus right. If you ever thought you couldn't get a shallow depth of field with a micro quarter-camera, then you need to mount this lens on your camera. At 110mm equivalent, that's almost too small. Almost useless. I haven't tested this on my Olympus yet, but I will soon. As far as I can tell on my Blackmagic monitor and my field monitor, the washed out background looks really creamy. I can't wait to use this more.