"Walimex" and lens that were previously 2 words that do not walked with me. But: + Good workmanship. Front part is made of plastic (Be careful when filtering purely screws! (72mm)), remaining completely metal Wobbles + Perfect fit on the bayonet, nix + Automatic mode for Pentax, aperture is "A" passed in position + Aperture ring (When Macro Ring in between, absolutely necessary) + Focus ring pleasantly stiff, really big rotary way for precise setting (Viewfinder Magnifier is announced) + Good sharpness, still sufficiently sharp at F1.4. + Colors ok, hardly CA ++ The many light! (Could see no Flaires in backlight so that the Walimex fell often in tests) ++ Pricing
+ - Relatively high weight + - No AF (the rarely captures what it should ...) + - Close-setting limit could be better (1 meter)
To complain = nothing, super entry-fixed focal length, Buy!