• LEICA R-Lenses can be used without restriction at temperatures ranging between - 25° and + 60° C.
• All lens components are protected against corrosion, guaranteeing reliable functioning under almost every conceivable climatic condition.
• Impact resilience of all LEICA lenses is remarkably high.
• The sturdy LEICA R-Bayonet ensures secure lens seating with one turn.
• When changing lenses, they can be stood on end without protective rear caps - there are no protruding control levers or pins which could be bent or damaged.
• The spring diaphragm is ball-bearing mounted. Even after 50,000 cycles, the aperture mechanism shows no signs of wear.
• All LEICA R-Lenses come standard with front and rear caps, as well as a lens hood designed for that particular lens.

Specifications of Summicron-R f/2/50mm

• Speed: f/2
• Focal Length: 50 mm
• Angle of view: 45 degrees
• Lens elements/groups: 6/4
• Focusing Range: infinity to 0.50
• Weight: 290 grams