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D15 Camera Manual: Operating the Camera
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3.4 Image Optimization
3.4.1 Correction of Lens Distortion (L20-L23* and L22-L25* Only)
If you are using a camera with either the
L20-L23 or L22-L25 wide-angle lenses,
the image, particularly around the edges,
may be slightly distorted due to the extreme
angle of view of the lenses.
You can suppress this eect using software
(for example, in the browser) so that a
new and appropriately corrected image
can be displayed live. A side eect of this
correction, however, is that a cushion shape
appears around the edges of the image.
To hide this cushion eect, you simply have
to Zoom In on the image slightly. Although
this reduces the size of the captured area,
the image is almost distortion-free com-
pared to the original.
*For an explanation of
the sensor module desig-
nations (e.g., L20‑L23),
please read
Section 1.2.1,
«D15 Lens Options»
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