<p>I had a 21mm Zeiss F4.5 ZM - Sharp, small, nicely made... But I ended up selling it because I didn't like the overly contrasty look along side my Leica M lenses. <br>
The pre ASPH 35 F1.4s are really nice. The ASPH F2 is really nice too. Get a nice 35mm from KEH, even the older ones are excellent.<br>
Ken is mad - you can safely ignore most of what's on his site.</p>