Based on the results I obtained, I realized that the Nokia N70 that I
was loaned had a serious problem with its camera module. From the SFR
readings of the three vertical bars, I noticed that the camera seemed
to be focusing to the right of the image not in the center like it is
supposed to be. With the further test and the results obtained from
the chromatic aberration of the center and far right vertical bars I
confirmed that the camera was focusing to the right not the center of
the picture. In a typical optical system you would have seen minimal
effect from chromatic aberration at the center instead in the N70 I
tested it showed signficant effect from the chromatic aberration .
While the vertical bar to the far right displayed the expected
chromatic aberration measurement that you would typically find at the
center vertical bar. I am sure many of you are wondering what could
cause this Nokia N70 to perform worst than a VGA camera phone? There
are two possible reasons that could cause this to happen. In my first
post I talked about the camera phone module assembly
and I divided it into the lens assembly and the CMOS image sensor. One
of the potential reasons that caused this N70 to have such poor results
is that the image sensor could be slightly tilted in the module. The
other cause could be related to the lens assembly and that either it is
tilted or one of the several elements is off. I do emphasize that
these results are only limited to the Nokia N70 that I have recieved
and I am not sure if all of them suffer from these problems.Source: Al-Manazir
Did we really need anyone to tell us how much the CMOS censors in camera phones suck? I’m waiting for the day when I see a Nokia phone with a Canon logo somewhere on it. Someone will have to pinch me! I highly recommend you read this entire article because this man is an expert in the field of optics. What he has to say about image quality is much more relevant and authoritative then probably 99% of the stuff out there on the net. Makes you want to get a Sony Cybershot doesn’t it?