ZEISS Dimension 2/25

商品類別:ZEISS 機器視覺工業鏡頭

ZEISS Dimension Lenses - High precision for greater efficiency

Focal Length : 25mm

Max. Aperture : 2.0

Min. Free Working Distance : 152.5mm

Filter Thread : M43 × 0.75

Camera Mount : C-Mount

Features

● fast f/2 aperture

● excellent image quality, leading to highest data precision over the complete image field

● for industrial cameras up to sensor sizes of 4/3’’

● robust full-metal construction made of aluminium

● small and compact

● possibility to adjust the back focal distance to compensate for tolerances of camera bayonets

● possibility for azimuthal adjustment ensures best possible readability of scales

● fixable focus and aperture settings

● optimized spectral transmission in VIS and near IR range through ZEISS T* coating

 

Optical data

Focal length25mm
Aperture rangef/2 – f/22 (continuous)
Number of elements / groups13 / 8
Focus range (object to sensor)231.9 mm (0.77 ft.) – ∞
Min. free working distance152.5mm (0.50 ft.)
Angular field (diag. / horiz. / vert.)1’’: 34.50°/28.97°/19.54° ; 4/3’’: 45.91°/37.41°/28.55°
Max. diameter of image field1’’: 16mm (0.63’’) ; 4/3’’: 21.64mm (0.83’’)
Flange focal distance (in air)17.526mm (0.69’’) , C mount
Coverage at close range1’’: 82.4mm × 55.0mm (3.24 × 2.17’’) ; 4/3’’: 107.9mm × 81.2mm (4.25 × 3.20’’)
Image ratio at close range1:6.3
Position of entrance pupil (relative to image sensor)63.8mm (2.51”)
Position of exit pupil (relative to image sensor)38.9mm (1.53”)

 

Physical data

Length (front to mount contact surface) (at inf.)60.0mm (2.36”)
Length (front to mount contact surface) (at MOD)60.0mm (2.36”)
Diameter (lens only)57.0mm (2.24”)
Diameter (with fixation screws)64.0mm (2.52”)
Filter-threadM43 × 0.75
Weight283g (0.62 lbs)
Camera mountC mount

 

Relative Illuminance*

Relative Illuminance

Relative Distortion*

Relative Distortion

 

MTF Charts*

MTFf2

MTFf4

* Data for infinite focus setting

 

Spectral Transmission

Spectral Transmission

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