ZEISS Distagon T 2/28

商品類別:ZEISS 機器視覺工業鏡頭

ZEISS Classic Lenses - Proven optical design in a sturdy metal housing

Focal Length : 28mm

Max. Aperture : 2.0

Min. Free Working Distance : 120mm

Filter Thread : M58 × 0.75

Camera Mount : F-Mount , M42

Features

● Fast f/2.0 aperture

● Precise manual focusing

● Robust full-metal construction

● Fixation for focus and aperture

● Identical color reproduction of all models

● For industrial cameras with F-Mount up to sensor sizes of 24×36 mm or 43mm line sensors.

 

Optical data

Focal length28mm
Aperture rangef/2 – f/22 (1/2 stop intervals)
Number of elements / groups10 / 8
Min. working distance (object to sensor)240mm (0.8 ft.) – ∞
Min. free working distance120mm (0.4 ft.) – ∞
Angular field* (diag. / horiz. / vert.)74 / 65 / 45°
Max. diameter of image field43mm (1.7")
Flange focal lengthF-Mount : 46.5mm (1.8") ; M42-Mount : 45.5mm
Coverage at close range113 × 169mm ( 4.5 × 6.7") ; line 202mm (7.9”)
Image ratio at close range1:4.7
Filter-threadM58 × 0.75
Weight500g (1 lbs.)
Camera mountF bayonet , M42 , EF

* referring to 35mm format

  

Relative Illuminance*

Relative Illuminance

Relative Distortion*

Relative Distortion

 * Data for infinite focus setting

 

MTF Charts*

MTFf2MTFf4

* Data for infinite focus setting / Not for IR version

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