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The Piranha XL XDR Camera
Good
Focus
Good
Focus
Good
Focus
Worse
Focus
Worse
Focus
Worse
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Worse
Focus
Figure 23 Effects of Camera Tilt In the Long Sensor Axis
A mechanical means to adjust this angle may need to be incorporated into the camera mount. This
becomes a finer, more precise adjustment as the magnification increases, especially above 1x, as
the depth of field becomes progressively smaller. The two examples below demonstrate this
characteristic.
Assume the use of a 120 mm lens set at f5.6 and Circle of Confusion = 2 pixels.
Example A: Magnification of 0.5X
Depth of Field = 1.34mm
Field of View = 16352 x 10um = 163.52mm
Requires the camera optical axis to be /-0.94
°
from perpendicular
Example B: Magnification of 2X
Depth of Field = 0.042mm
Field of View = 16352 x 2.5um = 40.88mm
Requires the camera optical axis to be /-0.12
°
from perpendicular
Содержание Piranha XL PX-HM-16K12B-00-R
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