Denis S wrote:
Can you please tell more about ways of measuring ambient lighting using camera? If there is article about this, URL would be very appreciated.
<http://www.google.com/search?q=lux+meter+camera> (and Google will be your friend ;-)
e.g. <http://www.clarkvision.com/imagedetail/digital.photons.and.qe/> I'd prefer to use a gray card (18% reflectance) instead of white paper. Klaus