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6.6
Lens Mounting
Lenses are not included with individual cameras.
Related Knowledge Base Articles
Title
Selecting a lens for your
The lens mount is compatible with C-mount lenses. Correct focus cannot be achieved using a CS-mount lens on a
C-mount camera.
6.6.1
Back Flange Distance
The Back Flange Distance (BFD) is offset due to the presence of both a 1 mm infrared cutoff (IRC) filter and a 0.5
mm sensor package window. These two pieces of glass fit between the lens and the sensor image plane. The IRC
filter is installed on color cameras. In monochrome cameras, it is a transparent piece of glass. The sensor
package window is installed by the sensor manufacturer. Both components cause refraction, which requires
some offset in flange back distance to correct.
The resulting C-mount BFD is 17.99 mm.
For more information about the IRC filter, see
10/27/2017
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Imaging Solutions Inc.
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Article
Knowledge Base Article 10694
camera
Infrared Cut-Off
FLIR Oryx
Filters.
®
Installation Guide
6 Oryx Physical Interface
20
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