A-Photo Mag

We see shadows all around us, in nature. The shadows are what help us see three dimensionally. To put that another way, the gradation from light to dark on the surfaces of objects helps us to see depth. We’ve covered that in another article with the example of a circle and a sphere, both represented on two dimensional paper. So, in the absence of shadows we see the world in a sort of two-dimensional way. That is not what shadow less lighting is all about by the way….just so you don’t get confused between the two.

By shadow less lighting, we refer to diffused light that does not cast a sharp shadow. Light that is not diffused, for example the flash light from a compact camera, casts a sharp shadow of the subject on the wall behind. That’s light that is NOT diffused. So what really causes this sharp shadow? Try this simple experiment – for this you will need a room with a bulb as well as a tube light. The bulb could well be a lamp light without a lamp shade. Now, switch on ONLY the bulb and hold your hand a few inches away from it. You see a shadow of your hand on the wall opposite. Next, switch off the bulb and switch on the tube light. Hold your hand near the tube light. No shadow! The bulb light is an example of light that is NOT diffused, and the tube light creates diffused light. The basic difference is – the bulb is a point light source (the light emanates from the filament of the bulb, which is pretty much a point source). The tube light on the other hand, is a diffused light source, meaning light does not emanate from any one point within the tube, but from all points on the surface of the tube, with equal intensity.

When you keep this simple idea of a tube and a bulb light in mind, you increase your control and understanding of diffused light, which is so often used in photography, especially in the studio environment. In reality, the tube light also creates a shadow, but a very soft one when compared to the point light source, the bulb. The shadows created by diffused light are much softer and thereby pleasing to the eyes. However, certain shoots call for the hard light of the bulb, the point light source. These may include a photo shoot that mimics the lighting from a spot light on a stage. So, let us not compartmentalize hard and soft lighting into good and bad categories, but rather get a better understanding on when and where each kind is required, and hone a better control over creating each kind of lighting artificially. In nature of course, the sun’s light is usually diffused by the clouds. However, on clear days when the clouds disappear, one can often see sharp shadows of people and objects, especially when the sun is high up at times like noon.