Distance to the target (too close)
There is no feedback in the flash system, which means that the light output is constant in every situation.
This causes the images to overexposure, when shot from close distance. The flash LED is designed to work
optimally between distances of 70 cm – 1.2 m.
This is normal behaviour; do not change the flash module.
Figure 80 overexposed image
Distance to the target (too far away):
The power of the white LED flash is still very modest compared to xenon flash technology. Even with full
power, the maximum distance for an acceptable image quality is roughly 1.2 m. If the distance is greater
than 1.2 m, the images will appear dark and the noise level increases.
This is normal behaviour; do not change the flash module.
RM-180
Camera Module Troubleshooting Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 8 –19
Copyright © 2006 Nokia. All rights reserved.
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