وحدة قياس شدة الاضاءة. استضاءة

The photographer takes the reading of light intensity from each light source and thereafter adjust the intensity of light for each source to effectively put lighting ratios to action Henry Semat,Robert Katz 1958 , , america: University of Nebraska - Lincoln, Page 673
1:1 ratio: The key light and fill light of same intensity result in even lighting, thus producing soft high key image Sadiku, , Page 60-63, Part 2

قياسات شدة الإضاءة

As the distance is doubled, the light spreads farther and a larger area is required to absorb the same quantity of light.

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شمعة (وحدة قياس)
A light ratio of 3:1 is desirable for
وحدة قياس شدة التيار
, technology uk, Retrieved 1-4-2018
وحدة قياس شدة التيار
RASHID, , Page 539-540, Part 23
Knowing the inverse square law and the lighting ratio can greatly help you in creating compelling images The closer the source, the bigger it appears and softer the light
To the contrary, a lighting ratio of 8:1 is considered to be low key Since the size of the subject is fixed, it only absorbs a a part of the light it originally did

ما هي وحدة قياس الضوء

, SI Units explained, Retrieved 1-4-2018.

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ما هي وحدة قياس الضوء
Boylestad, , Page 40-41, Part 2
شمعة (وحدة قياس)
The key to balancing the lighting are the lighting ratios and the inverse square law
وحدة قياس شدة التيار
ROBERT BOYLESTAD, LOUIS NASHELSKY, , Page 1-2, Part 1
You can paint your image with the light of your choice and create a masterpiece The type, quality and quantity of light — all have a visually distinct impact on the results
Additionally as a corollary, as the distance between the light source and subject increases, the apparent size of the source decreases Boylestad, , Page 131, Part 5

شدة الاضاءة ووحدة قياسها

A proper balance can clearly bring out the contours and features of the subject while reducing undesirable shadows.

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قياسات شدة الإضاءة
The Inverse Square Law comes in handy when adjusting the distance between the light and the subject
شدة الاضاءة ووحدة قياسها
جهاز قياس شدة الإضاءة
A combination of a strong key light and a weaker fill light allows more shadows thereby enhancing the contours and the contrast in the portrait