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No image
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Check power of camera and monitor
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Check video cable quality and length
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Check if video specifications of monitor match the specs of the camera
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Check if the iris under exposure settings is set to ‘closed’
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Abnormal image
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Check video cable quality and length
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Check cable connections
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Dithering or flickering image
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Check camera fixation and nearby vibration sources
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Check anti-flickering setting in OSD
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Check Noise Reduction settings in OSD
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Color issues
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Check options in OSD, like exposure, white balance, color temp, Red and Blue
tuning
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Autofocus issues
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Check the autofocus (position, speed etc.) before streaming
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Check Video/Camera Settings in de WebGUI or the OSD menu
(for example: if the image is too bright, too dark, or too noisy, the camera will have
difficulties to focus)
Check environmental conditions and the subject of focussing. The camera will have
difficulties to focus in the following situations:
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Light: Strong light, low light/dark areas and backlight conditions
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Moving subjects
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Small objects before a plain or solid background
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Blurry or unsharp subjects: filming throught wet glass or dirty objects
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Distance: filming two or more different subjects, some near and some far away
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Position in the image: subject positioned in the corners of the picture
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Faces: partly hidden faces, sideways filmed faces, diagonal or up side down
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When the camera itself moves, or when the iris is narrowed down
Note:
When you experience one or more of the above mentioned problems check also our
Appendix D - CMOS characteristics.
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