Epub Direction Quality of Light: Your Key to Better Portrait Photog…All the same Lynda. Plus, personalized course recommendations tailored just for you. All the same access to your Lynda learning history and certifications. Same instructors. New platform. Join Erin Manning for an in-depth discussion in this video Understanding the direction of light , part of Learning Lighting: Natural Light. The angle of light falling upon your subject is an important concern in photography.
Direction of Light: Your Key to Better Portrait Photography
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Good perceptibility of illuminated bodies and surface structures essentially depends on sufficient shadow effects of the lighting. Modelling expresses the balance between diffuse and directed lighting and is an important aspect of lighting quality for practically any indoor space. The general appearance of an indoor space improves when architectural features, people and objects within it are illuminated in a way that makes shapes and surface structures clearly and comfortably recognisable. This is achieved when the light features a perceivable preferential direction which creates the unambiguous shadows important for good modelling. Lighting which is too diffuse creates a subjectively uncomfortable lack of shadows, dull work surroundings and an unattractive light ambience. However, the lighting should also not be excessively directed, since this creates overly harsh shadows with sharp shadow edges. Lighting from a certain direction can emphasise details of a visual task, improve its visibility and facilitate the execution of the task for particular cases such as tooling, scoring and surface inspection.
In physics , refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium. How much a wave is refracted is determined by the change in wave speed and the initial direction of wave propagation relative to the direction of change in speed. Optical prisms and lenses use refraction to redirect light, as does the human eye.
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