First, on a desktop, imagine a piece of very thick, perfectly smooth, gray paper.
Next, visualize a piece of metal of the same size as the paper.
We suggest old pewter.Direct reflection does not necessarily imply nikon capture nx2 demo either of these.The brief flash of the flash tube presents minimal heat danger.Because specular reflection has different meanings to different people, we will not use the term in this book.The metal should also be smooth and exactly the same gray as the paper.It is worth cutting a small piece of the polarizing material and deliberately burning it in front of the light to determine a safe distance.Embed (for m hosted blogs) archiveorg width560 height384 frameborder0 webkitallowfullscreentrue mozallowfullscreentrue.Additional resources for Light Science and Magic.The gray should be a medium one, light enough to write on but dark enough that edmodo app for ipad no one would confuse it with white.Polarizing filters used with incandescent lights need to be attached to a bracket or a separate light stand a distance away from the light.An Introduction to Photographic Lighting.An Introduction to Photographic Lighting PDF.Modern usage adds further inconsistency.They turn off the modeling lights before attaching the polarizing filters.However, some photographers also use specular to mean smaller, brighter highlights within a large one; others mean highlights created by a small light source.Advanced embedding details, examples, and help!Finally, put the three mental images together on the same desk and examine the differences you see in the three subjects.
Photographers using strobes often leave the polarizers off the lights until they are ready to shoot.
The exact distance depends on the wattage and the reflector design of the light.