Voigtlander VM 50mm F2.2 Color Skopar Silver for M. Only a third of a stop slower than F2, the 50mm F2.2 offers great handling and high resolution performance in a small compact size. Weighing less than five ounces with a large easy to grasp focusing tab, convenient 39mm filter size, lens hood that does not intrude to the frameline, rangefinder close focusing to .7 meter with compatible cameras, live view focusing to .5 meters with compatible cameras, and measuring only 30mm from camera lens mount to lens filter ring, the F2.2 has a great combination of features.