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2. Macro photography - Wikipedia

   en.wikipedia.org/wiki/Macro_photography

   Macro photography may also be accomplished by mounting a lens in reverse, in front of a normally mounted lens of greater focal length, using a macro coupler which screws into the front filter threads of both lenses. This method allows most cameras to maintain the full function of electronic and mechanical communication with the normally mounted ...

3. Ring flash - Wikipedia

   en.wikipedia.org/wiki/Ring_flash

   Samigon ring flash unit attached to lens of single-lens reflex camera. A macro ring flash typically consists of a power and control unit mounted on a hot shoe, and a circular flash unit mounted on the front of a lens. Power is supplied by batteries in the shoe-mount unit and a cable conveys power and control signals to the circular flash unit ...

4. Diffuser (optics) - Wikipedia

   en.wikipedia.org/wiki/Diffuser_(optics)

   A flash diffuser (also called a speedlight diffuser, or shoot-through diffuser) spreads the light from the flash of a camera. A diffusion filter of this type may also be used in front of a non-flash studio light to soften the light on the scene being shot; such filters are used in still photography, in film lighting , and in stage lighting .

5. Flash (photography) - Wikipedia

   en.wikipedia.org/wiki/Flash_(photography)

   Video demonstration of high-speed flash photography. A flash is a device used in photography that produces a brief burst of light (lasting around 1 ⁄ 200 of a second) at a color temperature of about 5500 K [1] [citation needed] to help illuminate a scene. The main purpose of a flash is to illuminate a dark scene.

6. Bron Elektronik - Wikipedia

   en.wikipedia.org/wiki/Bron_Elektronik

   Bron Elektronik is a manufacturer of flash equipment for photography and videography. It is located in Allschwil in Switzerland . Bron manufactures the broncolor lines of strobes, which include studio lighting systems with separate power packs and heads, as well as monolights .

7. Through-the-lens metering - Wikipedia

   en.wikipedia.org/wiki/Through-the-lens_metering

   When using rear-curtain flash (when the flash fires at the end of the exposure) and a slow shutter speed, the distinction between the main flash and the preflashes is more obvious. [5] Some cameras and flash units take more information into account when calculating the necessary flash output, including the distance of the subject to the lens.