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
As one of the pioneer camera manufacturer, Kodak has become a name deeply embedded in minds of photographers, especially those that went through the heyday of the celluloid film era. As for Kodak’s trail, there are surely many interesting things that can be picked from their over a century old establishment.
It can be quite frustrating when the lighting conditions are insufficient when shooting, which makes it difficult to shutter speeds fast enough to freeze a photo’s object. When encountered with such a predicament, a flash (whether it be the internal camera’s flash or an external flash unit) can be used to remedy the situation. A […]
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Here’s a brief history of Canon Cameras. Released by Canon themselves, this video explain the evolution of their monolog SLR to their Digital SLR. This video showcases Canon’s revolution in technology and how they’ve applied it in various products. It explains their breakthroughs in technology and how it bettered enriched and further ease the photography […]
Travelling won’t feel complete without including your trusty camera in your packing. However, the value (both in the price tag and sentimental value) you carry along when you bring your camera means you’ll need to an extra dose of vigilance when bringing them along. Don’t let your guards down just because you’re too absorbed with […]
Landscape photography are usually accomplished using a wide angle lens. But what if all you have is a telephoto lens but you want to capture a wide landscape shot? No worries, this tutorial will show you how to create a landscape photo using Adobe Photoshop CS6. The main point is to compile a number of […]
Here comes the time when I am going to talk about wide-angle lens. This lens is my favorite. I cannot say exactly why, but I can give you a few points that I like most in the lens. And those points are: stretching the perspective, making the object that closer to the lens look much […]