Types of Flashes

Have you ever thought how those cameras produced the “flash of light” effect when somebody is taking a shot? I was surprised to know that it can be a separate unit and is actually called flash. A flash is used as a main source of light when there is no sufficient close light for a desired shutter speed. Well if you want to know about it and how it evolved over the past decades, below are some of its major types:

• Flash Bulb – believed to be the pioneer in flash technology. It contains magnesium filaments that were electrically fired up by a contact in the camera shutter. Flash bulbs usually take more time to accomplish full brightness compare to electronic flashes. One of the most commonly used flash bulbs during the height of its popularity is the so-called “number 25”.

• Flashcube – consists of 4 electrically fired flashbulbs that have a central reflector arranged in a cube-shaped pattern that permits taking 4 images in a row. It automatically rotates 90 degrees to a new bulb upon advancing the film to the subsequent exposure. Flashcube is Kodak’s replacement to the flashbulb technology.

• Magicube – also uses the 4-bulb design but each bulb was set out using a plastic pin inside the cube mount. This type of flash does not require a battery since a cocked spring strikes a primer tube that contains a fulminating substance.

• Flipflash – was called as such because when half the flashes had been expended, the unit had to be flipped and put it again to use the remaining. It utilizes about 10 bulbs in a single unit.

• Electronic xenon flash lamps – today’s widely used flash models. These types have a tube packed with xenon gas where a high current of electricity is released to create an electrical arc that discharges a short flash or light. The normal duration of the flash impulse is 1/1000 second.

• Microflash – is another modern flash technology designed to emit an extremely quick light flash that has sub-microsecond duration. Scientists and engineers typically explore this kind of flash for observing remarkably quick moving objects or effects.

Article Source: ArticlesMaker.com

About the Author: A Website www.instructionsmanuals.com where you can find and download instructions manuals for Flash, Microflash. 

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