Lesson 1 Inverse Square Law

The inverse square law states that the intensity of the light from a point source diminishes inversely to the square of the distance.  I=1/d²  Here is a better illustration that what I drew on the white board.

 



 

 

 

 



Here is what the results of your assignment should look like with the middle grey card adjusted in Lightroom and tweaked in photoshop to look the same.  You can see the Front card gets darker in relation to the Middle card as the light is moved further away and the Back card gets lighter as the light is moved further away.  In this example the card were flopped compared to what we were doing in class ie  the left card was closer and the right card was further back.

 



 



 

Here is one of the results of the black, white and grey card assignment.