Zeiss Biogon 21mm f2.8 ZM lens for Leica M mount.Great condition: glass clear, focusing is very smooth without any wobble, aperture works perfectly, no oil on blades. Only some paint loss on the lens housing. If you see dust in the pictures, it's on the surface of the lens, not inside. It is hard to keep dust out in the winter dry air.. Includes original box, manual, Zeiss front cap and generic rear cap. Worked great on my digital Leica M11 but I wanted to upgrade to the 21mm f1.8 Ultron...Practical tip: choose the 28mm f2.8 lens profile in your digital Leica M camera to get good lens corrections out of the box -- this is even recommended by Zeiss!
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