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  2. Photographic lighting - Wikipedia

    en.wikipedia.org/wiki/Photographic_lighting

    Butterfly lighting, named for the butterfly-shaped shadow under the nose, the butterfly lighting pattern is created when the light is above and in line with the camera. Split lighting, where the main light is placed off to the side of the subject at about 90 degrees and positioned at face height or slightly above. The subject looks straight on ...

  3. Butterfly (lighting) - Wikipedia

    en.wikipedia.org/wiki/Butterfly_(lighting)

    In cinematography, butterflies (also known as overheads) are structures on which materials are mounted so as to control lighting in a scene or photograph.Materials commonly used on butterflies include: flags (black, opaque materials), nets (layers of neutral-colored bobinette), and diffusions (translucent white materials of different densities) for the purposes of blocking, dimming, and ...

  4. Rembrandt lighting - Wikipedia

    en.wikipedia.org/wiki/Rembrandt_lighting

    A studio portrait, showing the characteristic illuminated triangle on the darker side of the face. Rembrandt lighting is a standard lighting technique that is used in studio portrait photography and cinematography; it is also used in contrast with butterfly lighting [1] It can be achieved using one light and a reflector, [2] or two lights, and is popular because it is capable of producing ...

  5. Structural coloration - Wikipedia

    en.wikipedia.org/wiki/Structural_coloration

    The brilliant iridescent colors of the peacock's tail feathers are created by structural coloration, as first noted by Isaac Newton and Robert Hooke.. Structural coloration in animals, and a few plants, is the production of colour by microscopically structured surfaces fine enough to interfere with visible light instead of pigments, although some structural coloration occurs in combination ...

  6. External morphology of Lepidoptera - Wikipedia

    en.wikipedia.org/wiki/External_morphology_of...

    The scales on butterfly wings are pigmented with melanins that can produce the colours black and brown. The white colour in the butterfly family Pieridae is a derivative of uric acid, an excretory product. [13] [40]: 84 Bright blues, greens, reds, and iridescence are usually created not by pigments but through the microstructure of the scales.

  7. Kjell Bloch Sandved - Wikipedia

    en.wikipedia.org/wiki/Kjell_Bloch_Sandved

    Kjell Bloch Sandved (October 20, 1922 – December 20, 2015) [1] was a Norwegian born publisher, [1] author, lecturer and nature photographer, most known for his Butterfly Alphabet which contains pictures of Butterfly Wings resembling all the 26 letters in the latin alphabet and the arabic numerals 0 to 9. [citation needed]

  8. Ultraviolet communication in butterflies - Wikipedia

    en.wikipedia.org/wiki/Ultraviolet_communication...

    The butterfly eye is similar to the average insect eye in that it is composed of numerous ommatidia. Each butterfly ommatidium contains nine photoreceptor cells with generally each cell using a single opsin. [6] With a UV sensitive opsin the butterfly can see UV light and respond maximally to ultraviolet light at approximately 350 nm. [6]

  9. Boloria eunomia - Wikipedia

    en.wikipedia.org/wiki/Boloria_eunomia

    The butterfly Proclossiana eunomia wants to pass on as many genes as it can in its short lifespan and thus males do not discriminate, trying to court all females they encounter. On the other hand, females are a bit more selective and have been observed to refuse incoming males either by displaying a mate-refusal posture or by simply fleeing away.