Inverse-square law
In science, an inverse-square law is any scientific law stating that a specified physical quantity is inversely proportional to the square of the distance from the source of that physical quantity.
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This law in photography is very valuable to one’s understanding of the nature of light! How far away is the light source from the subject or how the light source will effect the environment. There is a methodology behind this concept and even some math that is applied to figure out how the light source will effect your settings in camera!
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I understand that this theory can be applied to the appropriate context, why not just light the subject with continuous lighting of multiple sources so you can visualize the cause and effect on the photographed subject? I mean you can see what the cause of the light source will show you from moving your lights to a more flattering position! The fact that continues lighting is so inexpensive and easy to use, I figure I would be able to cut the whole mathematical equations while my work is done in studio!
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This is still valuable knowledge nonetheless because what if you are going for a really specific mood or look that you want to be able to map out your lighting position without physically reposition anything and you would look ten times more professional if you showed up at a location and you had your lighting positions set up in a matter of minutes compared to fully adjusti your lighting positions to find out a look that was desired but in the interim that specific situation would take at least an hour without trial and error!
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There always will be a time in your desired future were something of critical understanding will save your success in your desired position in life or even the knowledge will give you a one up. Sometimes passion can become a very fulfilling opportunity when the time comes for you to shine. On the other hand the knowledge you possess will help you stand out from the crowd like a strawberry on top of cupcake. Knowledge will always give you the key to open up opportunities that were once a chance of luck rather then a chosen path.
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A chosen destiny is not faith!
