Why bother changing base ISO?

Started Jul 18, 2007 | Discussions thread
Julia Borg Veteran Member • Posts: 7,280
Re: Why bother changing base ISO?

the thing I've never understood
about using filters with digital like this is that the blue filter
cuts down the transmission of other (i.e., red) wavelengths,

look at it from a different perspective. shooting under incandescent light you often have attenuation of red channel to achieve the white balance. so using cyan filter which affects only red channel and allows for better exposure of green and blue channels makes certain sense.

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Julia

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