ZEISS Dimension 2/25
商品類別：ZEISS 機(jī)器視覺工業(yè)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 length | 25mm |
| Aperture range | f/2 – f/22 (continuous) |
| Number of elements / groups | 13 / 8 |
| Focus range (object to sensor) | 231.9 mm (0.77 ft.) – ∞ |
| Min. free working distance | 152.5mm (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 field | 1’’: 16mm (0.63’’) ; 4/3’’: 21.64mm (0.83’’) |
| Flange focal distance (in air) | 17.526mm (0.69’’) , C mount |
| Coverage at close range | 1’’: 82.4mm × 55.0mm (3.24 × 2.17’’) ; 4/3’’: 107.9mm × 81.2mm (4.25 × 3.20’’) |
| Image ratio at close range | 1:6.3 |
| 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-thread | M43 × 0.75 |
| Weight | 283g (0.62 lbs) |
| Camera mount | C mount |
Relative Illuminance*
Relative Distortion*
MTF Charts*
* Data for infinite focus setting
Spectral Transmission
