GN, short for Guide Number, Is the amount of power the light transmitted by a flash device is. It’s the result from multiplying distance (in meter or feet) and aperture.
The power of the flash is measured with the GN which describes the flash’s capacity in illuminating objects within a certain distance (in meters). Modern flashes supports TLL technology that allows it to set its power according to the distance the object is to the camera, so the risk of it being too bright or too dark can be eliminated. Read the rest of this entry » .
Related Photography Ideas for GN in photography at OneSlidePhotography.com
A Camera bag is one of the necessities when owning a DSLR camera. And of course the camera bag design significantly differs from ordinary bags. First, a camera bag is usually equipped with several compartments lined with thick foam (the type varies) to protect the contents from tremor and shocks. Models and brands also vary, […]
One of the advantages of a DSLR is that the user can interchange different lenses on the camera body to achieve a variety of photographic effects. DSLR cameras have a release mechanism to change lenses quickly and easily so you don’t miss that perfect photo. Here are some technique to change DSLR lenses. The advantage […]
Vignette in photography is loved and is also hated by photographers. By its existence, vignette can beautify the view of a photo and sometimes can also make it look indecent. Vignette appears because we purposefully add it using special filter or digital imaging software. Apart from that, usually lens camera makers try to create ones […]
Photography is essentially a visual art form. Converting visualizations of what may seem to be meaningless scenes into something interesting (making something out of nothing). Interesting photographs are sometimes a result of implementing unorthodox angles, unorthodox in the sense that these angles may not be how the human eye views the world and their surroundings. […]
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Fill flash is a photographic technique used to brighten deep shadow areas, typically outdoors on sunny days, though the technique is useful any time the background is significantly brighter than the subject of the photograph, particularly in backlit subjects. To use fill flash, the aperture and shutter speed are adjusted to correctly expose the background, […]