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What is "Foveon Blue"?

Started May 26, 2014 | Discussions thread
Priscilla Turner
Priscilla Turner Senior Member • Posts: 1,957
Re: What is "Foveon Blue"?

xpatUSA wrote:

Take a colour temperature meter (I still have my old Weston) and face it carefully upwards to your sky. Make a note of the result.

I don't own a color temperature meter, but what would I have done with the result - apart from making a note?

Perhaps you missed my response to your earlier post?

No, I haven't missed anything.

You want to know what is the true colour of your sky or other light source. (The sky is a giant reflector, but that's another point, relevant to the colour of shadows in clear sunlight.) A colour temperature meter will tell you precisely in degrees Kelvin what the colour of your light source is. Note its reading. Adjust that part of your image using those data. Everything else, including items with other colours, will then fall into place.

My own sense is that in the middle of the day in most places the true colour of the sky varies from true blue to cyan (classical Greek for sky-blue) with no admixture of magenta. Earlier or later there's more red in the blue, as we can all see.

(Deciduous foliage is notoriously yellower in the Spring, darker green in late summer.)

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