Lighting ratio
The ratio from the brightest (highlight) to darkest part (shadow)of the subject. A ratio of the brightness of light falling on the subject from the main (key) light and other (fill) lights.
Lighting ratio
Techniques Glossary Lighting ratio
The ratio from the brightest (highlight) to darkest part (shadow)of the subject.
Lighting ratio.
The ratio of the brightness of light falling on the subject from the main (key) light and other (fill) lights. A ratio of about 3:1 is normal for colour photography, greater ratios may be used for effect in black-and-white work.
LIGHTING RATIO - The brightness of the main light (key light) compared with the brightness of the fill light(s). A ratio of about 3:1 is normal for photography.
Lighting ratio. The proportional relationship between the amount of light falling on the subject from the main light and other lights.
Lighting Ratio
The ratio of Key Light plus Fill vs. Fill Light only, using an Incident Light Meter. If the first is 200 Foot Candles and the second 50, the ratio is 4:1, or a 2-stop difference.
(NOTE: Lighting ratios are a measure of the difference in intensity between
two light sources directed at a subject. With a main and fill light
of equal intensity, a 2:1 ratio is produced; i.e., the main light ...
Tip: Use lighting ratios! With a two-flash setup, each unit can be set to a different power output to achieve a lighting ratio, which will give better modeling and make the subject look more lifelike.
You can control the lighting ratio to fit this range, or expose to record either highlights or shadows, resulting in loss on the opposite end of the tone scale.
Adjusting lighting ratios by flash-to-subject- distance is another method to control lighting ratios. An easy way to calculate footage for a 3:1 ratio with two lights of equal intensity is to think of the full f/stops (2, 2.8, 4, 5.
You can't automatically adjust lighting ratios between the individual flash units in TTL multiflash mode - all flashes will fire at the same time and shut off at the same time. There are four awkward workarounds for this problem.
The meter is great for computing lighting ratios. You press the measurement button once to take a snapshot reading.
I've said nothing about placement, setting lighting ratios, or any of the other technical considerations every studio photographer must know. Nor have I said anything about basic photography.
I was able to change camera positions and lighting ratios for a whole variety of shots easily creating different moods too numerous to show here. The light modification tools such as the soft box and umbrella are fairly inexpensive, and portable.
-Synchro-sunlight - system of combining daylight and flash to achieve a controlled lighting ratio.
Photo Glossary - T ...
In review, the set up accomplishes two goals: The light source does not bounce back into the camera, so that we are allowed to look directly at the window. The shape, color and lighting ratio of the model is greatly improved because the light is ...
Contrast control is an important element in digital imaging and is affected by: inherent subject contrast; subject lighting ratio; flare factor of lenses and the amount of green added to the image sensor.
For example, it can be placed farther away, a diffuser or scrims can be used, or you can use a less powerful light. On strobes you also adjust lighting ratios to make one light brighter than the other by a specified number of stops.
With a flat receptor, ISO 2720:1974 recommends a range for C of 240 to 400 with illuminance in lux; a value of 250 is commonly used. A flat receptor typically is used for measurement of lighting ratios, for measurement of illuminance, ...
this light overhead to primarily control the overall level of contrast, he knew that he would not need a lot of light output from this light and set the power to half strength. He figured that if he needed to make adjustments to the lighting ratios ...
This light remains on almost constantly and is proportional to the light which will be produced by the flash tube. This allows the photographer to visualize exactly the lighting ratios, shadows, ...
Setting II, is a Proportional mode, which adjusts the modeling lamp to roughly the same output as your flash tube power dial. This setting is ideal when you're using more than one light and you want to get an idea of the lighting ratios before ...
ring light has manual factional power and also allows you to fire either the left or right tube at fractional power settings in both auto flash exposure and manual flash exposure. This allows you to achieve the left/right or up/down lighting ratio ...
 See also: Lighting, Photograph, Subject, Light, Camera
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