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 measure flash power at OneSlidePhotography.com
For Dummies | English | 2009-02-12 | ISBN: 0470457724 | 336 pages | PDF | 14,2 MB Your Nikon D90 digital camera offers professional-quality features like 11-point autofocus, Live View, and the ability to shoot HD video. The first DSLR capable of shooting HD movies (720p at 24fps), the D90 was Nikon’s core enthusiast-level offering […]
If you wish to make money, photography consumers are easy to find and there are millions of them. What they don’t want to pay in high prices, they make up for in volume. This means that aquantity mindset (in terms of exposure) is key. The best success formula is exposing your work to more people, […]
An English photographer named Andrew Whyte has dedicated himself into documenting the adventure of a brave LEGO figurine on his quest around the whole of England in the photo series titled “The Legographer.” Andrew Whyte is actually better known for his expertise in using darkness as the background for his photos. By several medias, he’s […]
Here are a few tips and tricks for birding photography enthusiasts, whether it be for photographing pets or wild birds. 1. What you’ll need: – 300mm or 400mm telephoto lens – Teleconverters. – Monopod or Tripod – Camoflauge clothing; such as jacket, pants, and hats. – Beanbag – Camera Bag – Mosquito-repellent lotion.
There is a friend of mine who once told me a story “yesterday, I went to an old house which is said to be haunted. Did you know what happened when I was taking a picture in an empty room? There were some mysterious circular lights and I am quite sure that at the moment, […]
These photos interest you? And are you curious as to how they were taken? Like what camera was used, what filters, shutter speed settings, ISO? Or maybe you’re curious as to how it was edited in photoshop and what techniques were used to get these results? I will explain to you in detail and answer […]
Lomography is a part of analog photography that uses a specialized camera known as the LOMO camera. LOMO stands for “LeningradskoyeOptiko-MechanichesckoyeObyedinenie” (Leningrad Optical Mechanical Merger). The name comes from the name of the lens factory in St. Petersburg, Russia. The factory manufactures lenses for medical equipment (such as microscope lenses), tools of weaponry, and camera […]