Alley in Pisa, Italy

by Lars Kotthoff

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6
votes
3answers
290 views

How can I avoid or correct the “inverse Ageratum effect” in digital photography?

I was used to the ageratum effect with film cameras: as the red pigment on film is much more sensitive to IR than the humman eye, some flowers (such as the ageratum) appear pink in a photograph while ...
26
votes
3answers
3k views

Why is the blue channel the noisiest?

It is widely observed that the blue channel in digital cameras is the noisiest. I've certainly noticed that with my camera. Why is this? Is it an artifact of some particular technology (e.g. Bayer ...