ptan55
Mu-43 Regular
The Panasonic (Leica) 15mm f1.7 lens is now in stock at B&H
http://www.panasonic.com/uk/consumer/cameras-camcorders/lumix-g-lenses/h-x015e.html
http://www.panasonic.com/uk/consumer/cameras-camcorders/lumix-g-lenses/h-x015e.html