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
Becoming a professional photographer requires a long, grueling process. It requires years of practice full of trials and errors. But for those of you that don’t have the time or drive to commit to learning the craft but still wants to instantly look like a professional photographer, no worries! There’s a way for you to […]
This may be one of the frequently asked questions among photography enthusiasts. A more specific question would be one such as: “With a 70-200 mm, what’s the maximum distance can an object be from the lens?” This is a common question, and it must be clarified that lenses doesn’t have a maximum limit of distance. […]
Concerts are different than other types of musical events due to several of its characteristics. In addition to generally displaying classical music, concerts have aspects that can become constrictive to photograph. The most important thing when it comes to photographing concerts is that the camera can’t be too noisy and the photographer can’t move around […]
The D3100 is built around a 14.2 megapixel CMOS sensor, bringing not only live view but also Full HD video capture to Nikon’s entry-level model for the first time. In fact, this made it the first Nikon DSLR to offer 1920×1080 movie recording. It can only record clips up to about ten minutes long (due […]
If you use digital camera or Smartphone, you must know card memory well. On the previous article, I have covered about some tips on preserving this smart card so it can last long and is always ready to be used anytime. But do you know that there are so many types of memory cards in […]
An image sensor is a device that converts an optical image to an electric signal. It is used mostly in digital cameras and other imaging devices. Early sensors were video camera tubes but a modern one is typically a charge-coupled device (CCD) or a complementary metal–oxide–semiconductor (CMOS) active pixel sensor. Today, most digital still cameras […]
Canon today unveils the new EOS 1100D – the Digital SLR (DSLR) for consumers who want to take the first step on their journey to outstanding still images and HD video. Featuring many technologies developed for more advanced models, and functions which make it even easier to capture fantastic images straight out of the box, […]