Dorr Red GO System Filter For BW Images

LENS - An optical element which converges or diverges light

Black - A colour which does not emit any colour of the spectrum. Black absorbs all frequencies of the spectrum.

White - A colour combining all colours

Filter - A device used to separate mixtures

Filter - An optical device to remove or enhance particular wavelengths of light.

Red - One of the three primary colours

Skin - The largest organ on a human. Its main purpose is to keep liquids inside the body.

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