24 Primary and Secondary colours

This exercise required a dominate primary or secondary colour to dominate the image. And to produce images that matched the six primary and secondary colours closely;  red, blue, yellow (primary) green, violet, orange (secondary). Varying the exposure by 2/3 of a stop either side of the metered exposure to alter the brightness of the colour.

Equipment used Nikon DSLR, 105mm lens, tripod and a macro light (some shots). Limited (no exposure or colour) post processing in NX2 and DXO.

Many photographs and prints later I have my final images for the six primary and secondary colours. I have marked which exposure I believe most accurately represents the colour for the printed image this a small x.

Primary colours (pigment)

Red

+2/3 exposure

DSC_4792_DxO

Metered exposure

DSC_4790_DxOX

-2/3 exposure

DSC_4791_DxO

Blue

+2/3 exposure

DSC_4779_DxO

Metered exposure

DSC_4777_DxO

-2/3 exposure

DSC_4778_DxOX

Yellow

+2/3 exposure

DSC_4769_DxOX

Metered exposure

DSC_4768_DxO

-2/3 exposure

DSC_4767_DxO

Secondary colours (pigment)

Green

+2/3 exposure

DSC_4811_DxO

Metered exposure

DSC_4809_DxOX

-2/3 exposure

DSC_4810_DxO

Violet

+2/3 exposure

DSC_4783_DxO

Metered exposure

DSC_4781_DxOX

-2/3 exposure

DSC_4782_DxO

Orange

+2/3 exposure

DSCF7148_DxO

Metered exposure

DSCF7149_DxOX

-2/3 exposure

DSCF7150_DxO

For me this exercise opens a whole can of worms for accurate colour reproduction. Colour temperature of the light source & accurate white balance, the errors in uncalibrated monitors and printers, colour temperature of the viewing light (prints). Combined with how well the eye adapts to lighting variations and light temperature better than any camera. But that’s all probably going a little to far for this exercise.

 

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