Focal Length: 135mm
Aperture Range: f/4.0 – f/22
Optical Design: Sonnar (4 elements in 3 groups)
Mount Type: M39 / LTM (Leica Thread Mount)
Number of Diaphragm Blades: 12 blades
Filter Thread Size: 40.5mm
Sensor Coverage: Full Frame
Manufacturer: KOMZ (Kazan Mechanical Factory, USSR)