2012年6月19日星期二

Smart guide for portable camera lighting


Lighting can make or break a photo as underexposed images usually suffer from a lack of detail as well as increase noise and blurriness.Sometimes, natural light isn't enough to illuminate your subjects properly and that's where artificial light such as on-camera flashes and continuous LED lighting comes in.
In this smart guide, we'll give you some insight on some of the more commonly used portable lighting solutions and accessory options along with some useful tips. Do note that this list is by no means exhaustive--you still can find alternative lighting gear and apply them creatively. Unlike the inbuilt flash on your camera, external flash units that attach to the hotshoe have bounce and swivel heads which are useful for creative flash photography. They can sync with your dSLR or interchangeable lens camera (ILC) by balancing the intensity of the flash with ambient light. Besides having more power to illuminate faraway objects, on-camera flashes also come with AF assist illuminators that can help you focus better in low-light conditions. Some come with a modeling light function which fires a burst of flashes repeatedly, allowing users to preview a scene before image capture.
These flashes can even be used off-camera for more creative purposes where users can trigger them via infrared. Also, some flashes can be set to slave mode and will fire when it detects a secondary flash.There are also plenty of third party wireless triggers using radio waves which will allow you to use your flash off-camera, too.GE LED lighting improves safety while reducing energy cost at Marriott headquarters.Conventional flashes are usually blocked by the camera's lens when shooting closeups, causing harsh shadows to appear in the image. These macro and ring lights can be positioned very near to your subject, often on the lens' barrel itself, allowing the user to throw light into hard-to-reach areas.
dSLRs have the option of either using a dedicated ring flash which can sync exposure via the camera's hotshoe or a macro flash which features two or more miniature flash heads which are mounted via an adapter on the camera's lens barrel. Fret not if your camera doesn't have a hotshoe--there are some models that come in the form of LED ring lights that can be attached via a rail on your shooter's tripod mount. One of the most popular types of continuous lighting are Light-emitting diode (LED) lights, due to their lower energy consumption, longer lifetime and smaller size. LED lights are usually favored by videographers as they provide bright, flicker-free illumination, are easy to setup and allow you an instant "preview" how your image looks and make adjustments accordingly. They are also more compact and cheaper than traditional fluorescent or incandescent movie lights. Smaller lights can also be handheld and used with almost any camera out there.

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