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•
Place a flat, high-contrast test image perpendicular
to the optical axis in front of the lens/camera system.
We recommend the use of the ZEISS Dimension Test Chart
(Order no.: 2267-884).
•
Place the camera on a tripod or a stable surface and center
it on the middle of the test image.
•
Make sure that the test image is evenly and sufficiently
illuminated.
•
Set the aperture as wide as possible, preferably to full stop.
•
Set the distance between the test image and the
camera
sensor
Focal length
Distance test image –
camera sensor [mm]
Distance test image –
camera sensor [ft]
depending
on
the
2.8/8 2/12
2/18
308
425
616
1' 0.1" 1' 4.7" 2' 0.3" 2' 8.9" 3' 9.5" 5' 3.6"
focal
length.
2/25
2/35
2/50
836
1156 1616
US
23
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