I really like Carl Zeiss… I used to own many ZM lenses but I ended up with Biogon 2.8/21 ZM but now I added Distagon 4/18 ZM!!!!  Leica Super-Elmar-M 18mm F/3.8 is awesome lens but it cost too much, I mean too much…  On the other hand, ZM 18mm is quite reasonable.  I only used ZM18 for a few times but I can already say that it will be in my camera bag for a while.  I am going to sell my old Voigtlander Heliar 15mm/f4.5M so I can cover some of the cost of this ZM18.

Carl Zeiss knows optics and ZM18 shows just that!!!

It is just an awesome lens.  The build quality of the lens itself is superb and the produced image from this lens is just awesome!!!!