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
Nowadays, a camera phone is something of a daily staple in our lives. The quality of images these camera phones can also be compared to dedicated compact pocket cameras. But not many knows of the history of how the camera phone came to be. Officially, the first camera phone recorded was a prototype developed in […]
Marriage is a sacred event. It not only involves religious ceremonies of the wedding couple, but in many cultures, the wedding party upholds certain customs and traditions. Many different contingents are involved in the joyful day. Service providers (vendors) work hard in achieving a certain theme and atmosphere the wedding party wishes for. Among them, […]
Do you own an SLR or DLSR camera? Try and pay attention to the top part of the camera. Find the Greek letter Phi a circle divided in half by a long line mark that’s usually placed not far from the view finder. Maybe this feature is familiar to those who’ve been into photography for […]
In photography and videography, a filter is a camera accessory consisting of an optical filter that can be inserted in the optical path. The filter can be a square or oblong shape mounted in a holder accessory, or, more commonly, a glass or plastic disk with a metal or plastic ring frame, which can be […]
Yuri Arcurs is one of the most sought after stock photographers in the world. There is a gripping story about him and his crazy idea on proving his ability to freeze a fighter jet that flies up to 750 km/ hour using flash lamp in super high power. Yuri succeeded to prove that his idea […]
A sweet spot is a condition where the camera lens produces its sharpest images. There are three factors that are needed to be understood to obtain sharp images: 1. Aperture that results in sharp images. 2. Focal length (in zoom). 3. Focused areas within the frame.
To be a photographer journalistic is not an easy job. Any difficult situation should be faced and their duty is to take good photos from there. It must be not easy to take photos in such crowded and uncontrollable chaos. There are some tips on photojournalistic to shoot during chaos as well as normal moments […]