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 calculating GN at OneSlidePhotography.com
Measuring the intensity of a flash so that it optimally illuminates its object isn’t a hard task. By using the GN formula (at ISO 100) = distance x aperture, we’ll be able to calculate the distance or aperture that’s optimal for certain conditions when photographing. But of course that formula won’t be valid when we’re […]
The golden age of analogue cameras has diminished to make way for a newer more high-tech age of the DSLRs. This however, does not mean that analogues have been pushed into a corner. There’s still a minor breed of young photographers still investing their interest in these most vintage mode of photography. These enthusiasts, however, […]
Using lens filters when you take a picture is much more satisfying than spending hours sitting in front of your computer trying to get the effect you want. You can of course still use your software to make image adjustments. So you’re using a filter on your lens, maybe to protect it from dust or […]
What is the first thing to do when you want to find the most recent information? Like looking for price list of a product or inspiration to create unique photo? It is almost infinite that every one of you will look for the answers of those things on internet. Apart from the fact that they […]
When we talk about the feud between giant DSLR brands of the world, the focus of the discussion will surely not far from Canon vs. Nikon as the two top competitors. Both has had a long history in the world of photography and they both have a complete lens collection and DLSR classes of APS-C […]
The best way to become a professional photographer is slowly ease into it. Amateur photographers who want to turn your hobby into a full-time job are better served by a gradual approach. Types of jobs Professional Photography
Essentially, the main idea of photography is playing with light. If we are able play with light and control how it bounces off the subject, it will of course make for a great photograph. If we made mistakes in lighting, it will surely hurt the result. The direction of light against the subject of the […]