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Specular reflection

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Specular Reflection
Direct reflection, i.e. the glinting reflections from white and shiny objects which cause bleaching of the highlights in a photograph. Using a diffuse light source, i.e.

 


Specular reflection is measured with a specular glossmeter. Unpolarised white light is concentrated by a condenser lens onto a field aperture, which is located in the focal plane of the source lens.

Kicks, Hot Spots, Specular Reflections
Small, bright, light reflections that add sparkle (and, with a Star Filter, radiating lines of light). However, if too bright, they are likely to add Flare. See: Glare Angle for control.

Very bright highlights, such as light bulbs at night or small specular reflections of sunlight, ...

Typically, if I was photographing a wine bottle I'd use a narrow rectangular (striplight) softbox to produce the shape of specular reflection (reflection of the light source) that suits the subject, ...

Occurs when rays of light strike a surface and bounce back again. Specular reflection occurs on even, polished surfaces; diffuse reflection occurs on uneven surfaces, when light scatters.
Reflex lens:
An alternative term for mirror lens.

This system is essentially similar to E-TTL (pre-flash metering) except the algorithm has been tweaked to ignore very bright specular reflections and to also take into account distance information from the lens (if available) to produce a more ...

Reflections
Are rays of light which strikes a surface and bounce back again. Specular reflection occurs on even, polished surfaces; diffuse reflection occurs on uneven surfaces, when light scatters.

Some clipping is usually ok in regions such as specular reflections on water or metal, when the sun is included in the frame or when other bright sources of light are present.

Polarizing filter
A colourless gray filter made from stressed glass. Polarizing filters are used over light sources or camera lenses to reduce or remove specular reflection from certain types of surfaces.
Search SWPP and BPPA ...

Look for points of light in the background. Perfect subjects for this are distant points of light at night or sometimes light shining through leaves or specular reflections in daylight.

coating mottle
a small variation in gloss that can be detected on a coated, calendered sheet by viewing the sheet at an angle to check for specular reflection from the surface.

When you are making the background exposure, be certain there are no specular reflections bouncing off the background onto the subject, and use only the background lights. When making the subject exposure, use only the subject lights. 9.

See also: Light, Reflection, Camera, Photograph, Image

Photography Specular highlightSpeed

 
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