Color > Negative

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Marpel
Posts: 320
Joined: September 13th, 2009, 3:19 pm
What is the make/model of your primary camera?: Nikon D810
Location: Port Coquitlam, British Columbia

Color > Negative

Post by Marpel » December 22nd, 2017, 8:48 pm

Had written up a new post on this topic and somehow it disappeared when I was halfway through, so I apologize if two show up when I submit this latest draft.

Anyway, I have been giving the Color > Negative transform a try and think I have figured out the color relationship when moving each of the Red, Green and Blue sliders.

However, the Manual states that these sliders also let you adjust the overall brightness of the image. Is there a general rule of thumb on how moving each (or a combination of more than one) of the sliders affects the image brightness?

Thanks,

Marv

jsachs
Posts: 1455
Joined: January 22nd, 2009, 11:03 pm

Re: Color > Negative

Post by jsachs » December 22nd, 2017, 10:41 pm

Lower gamma values make the image brighter - if you move all three at once all three channels are lightened or darkened. Moving just one alters the color balance, especially in the midtones.
Jonathan Sachs
Digital Light & Color

Marpel
Posts: 320
Joined: September 13th, 2009, 3:19 pm
What is the make/model of your primary camera?: Nikon D810
Location: Port Coquitlam, British Columbia

Re: Color > Negative

Post by Marpel » December 23rd, 2017, 9:19 pm

Ahhh, thanks very much Jonathan.

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