Page 36 - Lighting the Unlightable Volume 1 #1
P. 36

 And of course, the windows themselves can be an is-
                        sue. Because light reflects at the compliment of the angle

                        with which it strikes an object, positioned incorrectly, the
                        strobes would be visible in the windows. When you position
                        the camera directly in the path of the angle of reflection,

                        clear glass can become a mirror.
                        Also, when the difference between the volume of light on

                        either side of the window exceeds 2 F-stops, transparent
                        glass becomes mirror-like.


                          The  wood  floors,  also  a  high-gloss  finish,  could  be
                        “blown-out” by light from the windows. So, I had to watch

                        the angle at which the sunlight was striking the floor.


                         Then there’s the red-velvet couch. Velvet can be highly
                        reflective. Too  much light from the strobes, and the couch
                        would discolor and appear to be blown out. Too little, and
                        the red would fade quickly to black.



                         Black can be reflective, too, and I was concerned about
                        her dress. Satin, like velvet, can be very difficult to work
                        with. It can be highly reflective. Black is even worse than
                        other colors.



                         The most serious problem, however, had nothing to do
                        with the room or the physical structure of the room, It was
                        that the structure of the space meant that I couldn’t place
                        my lights where I normally would.

                 Why would the inability to get my lights into the space be a problem?
                 Well, there are many reasons.



                          The “Law of Inverse Square” holds that light diffuses
                        at the inverse of the square of the distance from the ob-
                        ject. So, if I am two feet away, then I have one quarter the
                        amount of light.


                         Remember, our goal is to render the volume of light in

                        a space totally consistent. The farther the object - or per-
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