وحدة قياس شدة الاضاءة. قياسات شدة الإضاءة

Thus light becomes more directional, focused thus turning into hard light Artificial light is also used in fashion and glamor photography where it has to be balanced with the naturally available light
Additionally as a corollary, as the distance between the light source and subject increases, the apparent size of the source decreases The difference between the intensity of key light and fill light is calculated with respect to f-stops

وحدة قياس شدة التيار

In a situation where the key light is absent and only a fill light is used, the portraits tend to appear flat.

ما هي وحدة قياس الاستضاءة
8:1 ratio: Results in very dramatic and low key image
قياسات شدة الإضاءة
RASHID, , Page 331, Part 16
وحدة قياس شدة التيار
A proper balance can clearly bring out the contours and features of the subject while reducing undesirable shadows
This ratio means that the intensity of main light is 3 times the fill light
The Inverse Square Law comes in handy when adjusting the distance between the light and the subject But varying the distance affects the quality of light too

ما هي وحدة قياس الاستضاءة تفاصيل وحدة قياس الضوء

ROBERT BOYLESTAD, LOUIS NASHELSKY, , Page 1-2, Part 1.

18
وحدة قياس شدة التيار
To calculate and arrive at the desired lighting ratio, the photographers may seek the help of a but in practice it is generally a matter of individual preference and some experimentation
شمعة (وحدة قياس)
In order to control these, a soft-light source is employed as fill-light
استضاءة
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
Lighting Ratio A lighting ratio is simply the ratio or a balance between the intensity of two different lights Sadiku, , Page 60-63, Part 2
The correct lighting setup can help you get astonishing results and a poor setup can totally ruin the shot Boylestad, , Page 103, Part 4

ما هي وحدة قياس الاستضاءة تفاصيل وحدة قياس الضوء

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

جهاز قياس شدة الإضاءة
4:1 ratio: Higher contrast resulting in a low key image
ما هي وحدة قياس الاستضاءة تفاصيل وحدة قياس الضوء
2:1 ratio: Is desirable for most cases
شمعة (وحدة قياس)
Thus the lighting has to be taken care of during the shoot itself