ZEISS 50MM F/1.5 ZM C SONNAR T* LENS BLACK USA NEW!

ZEISS 50MM F/1.5 ZM C SONNAR T* LENS IN BLACK. 

PRODUCT # 1407218

COVERED BY A 2-YEAR ZEISS USA WARRANTY.

The C Sonnar T* 1.5/50 ZM lens is the modern technological reincarnation of the classical Sonnar 1.5/50, the fastest standard lens of its time.

It is fast, very resistant to flaring and unusually compact . therefore the .C. in the lens name. With its well controlled distortion, the lens produces a very accurate representation of objects. It can take the same filters which fit the ZM wide angle lenses with 28, 25 and 21mm focal lengths. This is a very versatile lens for photojournalistic work in general and for available light photography in particular.

• all production since 1997 is focus optimized at f/1.5 for film based cameras to a FFD distance at 27.86mm.
  

• this adjustment works well for film based cameras, but causes a noticeable shift on digital rangefinder cameras - since their FFD is longer than film-based M-mount cameras (basically they do not meet the standard M-mount spec). When the optimized lenses are tested with digital rangefinder cameras at a close focus distance of 0.9m and at f/1.5, they front focus by about 2cm
  

• because of the differences between film and digital rangefinder cameras - which we cannot control - it is impossible to have a focus optimized C Sonnar for both systems.
  

• for customers who want their lens adjusted for digital rangefinder cameras, Zeiss Germany have set the FFD to a distance of 27.90. This provides good results on digital cameras, but will cause a focus shift on film cameras for the reasons mentioned above

If an individual customer wishes to have their C Sonnar optimized for use with a digital camera, the customer can send the lens into Zeiss Germany for adjustment.

Technical Specifications

Focal length: 50 mm

Aperture range: f /1.5 . f/16 (1/3 f-stop)

No. of elements/groups: 6/4

Focusing range: 0.9 m . infinity

Image ratio at close range: 1:15

Coverage at close range: 37 x 55 cm

Angular field, diag./horiz.: 46./38.

Filter: M 46MM x 0.75

Weight: 250 g

Dimensions: . 56 mm, length 45 mm