![]() ![]() I have a question though regarding the last part of this class which is the focal length and positioning of the camera/focal plane in relation to the angle of incidence of the light. Watching this a couple of times truly shed more light on angles of incidence/reflectance concepts, no pun intended. The angle between the incident ray and the normal is known as the angle of incidence. Please post your questions and comments below. The normal line divides the angle between the incident ray and the reflected ray into two equal angles. You may also like to watch How and Why to Polarise Light in Studio Photography, which Karl mentions in the conclusion to this class. ![]() If you enjoyed this class, check out Understanding Light or Harley Davidson Night Rod Photoshoot. The angle of incidence, in geometric optics, is the angle between a ray incident on a surface and the line perpendicular (at 90 degree angle) to the surface. Adjusting focal length to alter reflections.How to use a laser pointer to position studio lights.Using polarising filters in photography.To wrap up the class, he shares a handy technique for removing glaring reflections from a shot – without having to move your lights.īy the end of the video, you’ll have a deeper understanding of how light works and how to harness and manipulate it for stronger images. The angle of reflection and refraction was measured and recorded when the medium was rotated from 0 to 80 degrees, changing this angle of incidence in 10 degree increments. Using graphical examples, mirrors, laser pointers, smoke pellets and even a Harley Davidson motorcycle, Karl demonstrates how to put this key aspect of lighting theory into practice. To achieve the goals of this lab, a He- Ne laser beam was shined through different mediums that is placed at a distance on a circular table with a paper protractor. Understanding how these angles relate to one another is crucial to capturing successful photographs. The purpose of this study is to develop a technique that will provide the maximum sensitivity of the reflection technique for the determination of the. ![]() (In the video, the latter is sometimes referred to as the ‘angle of reflectance’.) Here, Karl breaks down some simple laws of physics to help you get to grips with how reflections work and how you can optimise them in your photography.Īfter describing the four different types of reflection, Karl goes on to explain the angle of incidence and the angle of reflection. If you’ve ever struggled to position a light correctly, or wondered how to avoid glaring reflections in an image, this class will answer all of your questions. ![]()
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