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Reflected light

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Reflected Light
Figure 1: Reflected Light
Reflected light is created when light from a light source, such as the sun, reflects off an object before it strikes the subject to be photographed.

 


Reflected light reading
A measurement by a light meter of the amount of reflected light being bounced of the subject. The light meter is pointed towards the subject.
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Reflected light reading
An exposure reading that measure from the camera position with the metering sensor pointing towards the subject.

Reflected Light Reading
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REFLECTED LIGHT METER READING VARIATIONS There are variations of light meter readings used to provide accurate light meter readings of different types of scenes.

Reflected light reading
Techniques Glossary Reflected light reading ...

Reflected Light
Reflected Light is the light that is being reflected off of an object, and represents a softer and different level of intensity than the light that is hitting a subject.
Reflected Light Meter ...

REFLECTED LIGHT RAYS - Those which are thrown off from an object.
REFLECTED LIGHT READING - An exposure meter reading of light reflected by a subject. The exposure meters in most cameras are reflected light meters.

Reflected Light: A well-known fact about light is that light colors reflect light, and dark colors absorb light. A great illustration of this fact is a soaring bald eagle in a beach environment.

Reflected Light
Various surfaces in a scene reflect between 1% and 95% of the Incident Light. Specular surfaces will reflect it narrowly. Diffuse (rough, irregular, or Matte) surfaces Scatter it.

Reflected light metering
Method of exposure metering by which the amount of light reflected from the subject is measured.

Reflected light and the time of day
The amount of light that penetrates the surface depends on surface conditions, the weather, and the time of day. Choppy waters reflect more light than calm waters.

Reflected light meters are calibrated to give an accurate exposure when pointed at subject with reflectivity somewhere near 18%; the exact value varies and the details are complex.

Reflected light is often polarized at the angle of the surface it is reflected off of. If it is the surface of the lake, the light will be polarized horizontally. If a vertical wall is the reflector, the light will be polarized vertically.

Reflected light - light bounced off a subject, not falling on it.
Reflected light reading - measurement by a light meter of the amount of reflected light being bounced of the subject. The light meter is pointed towards the subject.

The reflected light from lens elements that appears as a non-uniform haze or as bright spots on the film. This usually happens when a bright light directly enters the lens.
flash card: ...

The reflected light from this preflash is analyzed by the same evaluative metering system that the camera uses for metering ambient light levels. The appropriate power output (ie: flash duration) of the flash is determined and stored in memory.

Because the reflected light varies slightly as you rotate an object, automatic exposure may vary causing the background to flicker when you animate the series. To prevent this from happening, use manual exposure mode or exposure lock.

When using a reflected light meter, the most important source of error is that the subject's reflectance may not match the meter's assumption about the subject's reflectance. Suppose that you're taking individual portraits of Alex and Mia (at right).

Fill-in flash: Direct or reflected light used to illuminate shadow cast on the main subject.
Filter: A material such as glass or gelatin, which alter the color or light passing through it.

The other optical system utilizes reflected light and/or diffraction light. To capture the reflection image, this method illuminates a wafer on a tilted wafer chuck in order to make the incident light angle and the reflection light angle equal.

So, as your camera uses reflected light readings, how does it attempt to get the most accurate reading? Basically all camera lightmeters is set to assume everything they ever see reflects exactly 18% of the light that hits it.

Metering Opations: Reflected Light Readings
A typical handheld exposure meter actually provides you with two ways to meter. First, there’s reflected-light, or reflectance, measurement.

A photograph usually contains both ambient and reflected light, but one will usually dominate the other. Think of reflected light as defining an object and ambient light as a feeling. Absolutely defining such aesthetic truths is impossible.

When used outdoors, they can dramatically improve images by reducing reflected light. On sunny days, skies will be a much deeper blue. This is most noticeable roughly 90 degrees to the angle of the sun.

For the example image, there are several spots behind the subject which reflected light offering a distraction. During this shot, the client actually liked the stop sign being lit in the background, so it was left in.

The Fill Light could be a light fixture as well as reflected light from the key light or the sun outdoors. You can buy a photo reflector or simply use a large white art board.

As such, this stray reflected light is coming at you and your lens from everything you're not photographing that is anywhere in front of you.

The opposite of additive color mixing, subtractive color mixing describes how the light absorbing properties of paints mix to make colors in reflected light.

As the brain tries to decode reflected light based on what it sees, extreme ranges of illumination may hinder rather than help perception.

Despite the quick-fixes noted in "a" and "b" above, there is a third and more standard approach to solve the problems posed by varied intensities of reflected light within one frame.

The exception is if you have access to a professional portrait studio where lighting is carefully staged, angled and often supplemented with reflected light.

(1) the absence of all reflected light; the color that is produced when an object absorbs all wavelengths from the light source; (2) in four-color printing process black is required in the printing process because equal amounts of cyan, magenta, ...

When pointed at subject, reflected light meters, whether in-camera or handheld, are calibrated to give an accurate exposure with reflectivity somewhere around 18%; the exact value varies and the details are complex, ...

Red and blue are not primary colours (of reflected light). Red is a secondary colour that is made from magenta and yellow, and blue is a secondary colour that is made from cyan and magenta.

A reflected light sensor on the back of the meter measures the light in the direction the meter is pointed. The incident light sensor is on the front behind a white dome, and it measures the light falling on the meter.

He controlled reflected light and added subtractive fill with (D) two black cards placed beside the glassware. (E) A sheet of glass under the subject created the tabletop reflection.

A method of linking the camera exposure settings to the ambient or reflected light level. Automatic exposure relies on assumptions about the reflectivity of the subject, and it cannot anticipate the photographer's artistic intentions! ...

-Dichroic - displaying two colors - one by transmitted and one by reflected light.
-Dichroic filters - produced by metallic surface coatings on glass to form colors by interference of light. Used in high quality color enlarger heads.

Spot meter
Narrow-angle exposure meter used to take accurate reflected light readings from a small area of a subject; can also be used from some distance away.
(see Exposure meter) ...

The TTL Multi Sensor ins de the camera body reads the amount of reflected light, then the camera's microcomputer determines the area of the TTL sensor to be used for flash output control and adjusts the flash output level.

Bounce Light Refers to a flash unit aimed at a reflecting surface, such as a wall or ceiling, to illuminate the subject with reflected light.

Use a circular polarising filter to reduce or eliminate this reflected light and be prepared to lose up to two stops in the process. On a still day, select a longer shutter speed rather than a higher ISO or wider aperture.

The bottom line is digital cameras will perform better under soft reflected light conditions. Take advantage of this golden light, it doesn't last long.
Use a Tripod ...

Note that the cones in our eyes see this reflected light in RGB mode. An object appears Red because Green and Blue have been absorbed. Since the combination of Green and Blue is Cyan, Cyan is absorbed when you add Red.

A colour system based on reflected light. Colour CMYK printing is based on the subtractive colour system.
surrogate image ...

The term is also used to describe the light-sensitivity range of film and the range of reflected light of a print. A photograph produced by a camera with high dynamic range, for example, will retain image detail in both the shadows and highlights.

Remember that the light from a flash will reflect off shiny surfaces such as water or glass. When shooting through a window, try shooting the subject from an angle to reduce the amount of direct reflected light.

It is not always possible to manipulate lighting, but understanding how light reflects and changes throughout the day helps us predict good light. We can choose to return to a scene later, waiting for reflected light from a rock face, ...

If you shoot pictures on the beach or the snow, the bright and reflective surfaces will confuse the camera. The Beach & Snow Modes serve to compensate for the abundant ambient and reflected light by slightly overexposing based on the meter ...

Exposure meters measure the overall amount of reflected light from the subject. This level of light is then rendered as 18% gray in the picture. It will give a perfectly exposed image for scenes that contain mainly average gray tones.

In that the source of light hits the front of the reflector, simply aim the reflected light onto the subject to allow detail to be revealed. A white reflector bounces soft light onto the subject. A silver one creates a harsher and brighter source.

The reflector kicked back just enough light onto the subject's face to make it the brightest part of the image. Without the reflected light, she wouldn't stand out as prominently, ...

Built in automatic exposure systems may tend to overexpose white copy material since these meters "average" the reflected light from a wide area of the screen. Reflected readings from a grey card will be more accurate.

activated, usually by turning the camera on or by light pressure on the shutter release, the light meter measures the light reflected back through the camera lens from the scene in front of it. This type of lightmeter is known as a Reflected Light ...

I don’t need to mess around with focusing when I am trying to concentrate on what is available in front of me; and secondly, it often throws the focus out ever so slightly, which helps smooth out the million pinpricks of reflected light from ...

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