User Guide

Figure 68 Geometrical distortion

Amount of light available

In dim conditions camera runs out of sensitivity. Exposure time is long (especially in night mode) and the

risk of getting shaken (= blurred) images grows. Image noise level grows. The maximum exposure time in

night mode is ¼ seconds, so images need to be taken with extreme care and by supporting the phone when

the amount of light reflected from the target is low. Sometimes blurring may even happen at daytime if

image is taken very carelessly. See the figure below for an example. This is normal behavior, do not change

the camera module.

Figure 69 Handshake has caused blurring of this image. Note geometrical barrel distortion in background.

Movement in bright light

If pictures of moving objects are taken or if the device is used in a moving car, object 'skewing' or 'tilting'

will occur. This phenomena is fundamental to most CMOS camera types and normal, and can not be helped.

Movement of camera or object will usually cause blurring in inside or dim lighting conditions due to long

exposure time. This is normal behavior, do not change the camera module.

RM-135

Nokia Customer Care Camera Module Troubleshooting

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