Slow but sharp, contrasty, well built and about $500 less brand new than a used Leitz 28mm 2.8 that's only a stop faster. Most of my stuff is street photography during daylight hours. If I need faster, I can shoot faster film, push it or grab my f2 summicron and sacrifice the wide angle. The super fast Leitz stuff is for professional photographers whose work can pay for it and rich dentists.