Zeiss 135mm F2 Milvus ZF.2

135mm F2 Milvus ZF.2

A lens with relatively few glass-air surfaces, it was developed by Dr. Ludwig Bertele at ZEISS in 1930.
At the time it was one of the fastest high-speed lenses for 35 mm photography, with apertures as large as 1:1.5 and high contrast thanks to effective stray light reduction.
Its high speed and high contrast helped give the lens its name, which is derived from the word “sun,” the symbol of maximum brightness. You continue to find the aforementioned benefits with
modern lenses in the normal and telephoto ranges whose optical design is based on this basic type.
Specifications:
Focal length 135 mm 
Aperture range f/2.0 – f/22 
Camera mount | Nikon F-Mount* (ZF.2) 
Format compatibility Full Frame 
Focusing range 0,80 m (31.49") -  
Free working distance 0,62 m (24.40") -  
Angular field** (diag. | horiz. | vert.) 19° / 16° / 11° 
Diameter of image field 43 mm (1.69") 
Coverage at close range (MOD)** 145 x 96 mm (5.71 x 3.78") 
Image ratio at minimum object distance 1 : 4 
Lens elements | groups 11 / 8 
Flange focal distance | ZF.2: 46 mm (1.83") 
Entrance pupil position (front of image plane) 35 mm (1.36") 
Features Autofocus – 
Image Stabilization – 
Physical Filter thread M77 x 0.75 
Rotation angle of focusing ring 268° 
Diameter max.  ZF.2: 90 mm (3.53") 
Diameter of focusing ring  ZF.2: 85 mm (3.35") 
Length (with lens caps)  ZF.2: 129 mm (5.08") 
Length (without lens caps)  ZF.2: 114 mm (4.49") 
Weight ZF.2: 1059 g (37.4 oz)