Continuous Light Sources
The continuous light sources include both tungsten lamps that the quartz halogen lamps, without forgetting the energy savings (including LED) that lately are making their entrance in the world of photography. Their main advantage is that they allow to predict exactly how the final image will appear. In the case of tungsten lamps and halogen lamps, the latter generating a lot of heat, are unsuitable for the delicate living subjects, place always very carefully.
We know how a camera is able to capture all the colors that the human eye can see (see the article on the installation latitude). The photo of a sunny day could have a brightness range of well over eight stops below the reality akusaraprosound. A typical digital camera is able to successfully record a range of about five stop (a bit ‘more obviously in the presence of a good SLR), which means that the details might be lost in the shadows is that in the lights. There are several ways to solve the problem, brightening the dark areas in particular, through the use of diffusers, reflectors or via the fill flash technique. Always remember, before leaving for a shipment of macro photography to define the exposure latitude of your device to avoid disappointments in post-production.
A diffuser has the purpose to reduce and diffuse the light emitted by the light source, as well as to attenuate it. It works like a cloud passing before the sun, just to give you an idea. There are several speakers on the market (refer again to Article on accessories for photography), but if you have an urgent need to build one, even a paper sheet before the light can be functional. Obviously the temperatures eye if the light to be spread is warm, a traditional paper may catch fire.
The main purpose of a reflector is to reflect light in the shadow areas of a scene thus reducing the overall contrast. Are several reflective surfaces that can be used to reflect light in the shadows (see the article about accessories for photography), with a white cloth to a silver foil or a mirror. Each surface has its own characteristics depending on the material and the size. Some reflectors are made to be transported and stored without problems rigid plastic disks that can be requested on themselves and become much smaller (usually boil down to ¼ of the actual size), and therefore easy to transport. The spotlight, especially in macro photography, are fundamental and should always be part of the photographer’s kit.