I had 1/2 hour to sneak outside and try it out. If you are considering this lens, but want a reason not to buy it.... stop reading now. It's first impression is that it is a truly great lens. Much smaller and easier to handle than I thought. Holds a wide dynamic range, beautiful tones and color, exquisite detail, fascinating ability to isolate subject at 21mm. Also, I got a Zeiss 21 mm finder thinkingI'd compare it to my CV 21 and send it back....no way, it's the nicest finder by far I've ever looked through. So her's a few to peak at. best....Peter
This one is a crop to show 1.4 isolation
These are stopped to 5.6 I believe, full frame.
Full sized here