Lines Across Pictures


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Jun 18, 2005
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#1
Sometimes, when taking photos using a camera phone under certain fluorescent or other kinds of lighting will produce banding acoss the picture. Why is that so? Has it got anything to do with the frequency of the light?
 

Del_CtrlnoAlt

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Feb 15, 2003
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#3
Sometimes, when taking photos using a camera phone under certain fluorescent or other kinds of lighting will produce banding acoss the picture. Why is that so? Has it got anything to do with the frequency of the light?
P&S & camera phones are very susceptible to such banding, if you take pictures, it will not appear, but on video it will be very prominent. You only see it on your preview or video capture...
 

Jun 18, 2005
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#4
I see it on my SE K750i during preview and the photo itself. So what causes this to happen?
 

arpinkor

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May 13, 2005
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#5
Fluorescent lights are not constant and will flicker at twice the input ac frequency, in SG, it's about 50Hz so it flickers about 100 times per second.
If you also get this banding with incandescent light (meaning like light bulbs, not fluorescent), then it's a different problem.
Does the problem go away with slower shutter speeds (not sure whether HP cam can even set shutter speed) ?
 

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