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 how to calculate guide number at OneSlidePhotography.com
UV filters are the must-have accessories for a new lens. Physically, this filter resembles an ordinary transparent round piece of glass. And there’s also an extra coating on the pricier branded UV filters like in HOYA, Tiffen, B+W, and others. This extra coating adds extra quality to the filter. The general use of a UV […]
The following are some common mistakes made by beginner and amateur photographers. The people at Panasonic found these via a survey they conducted, numbered in order of its frequency. 1. Most common mistake made by digital camera users, of up to 35.2% of the people surveyed, is the loss of battery power. Digital cameras, obviously, […]
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