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 value at OneSlidePhotography.com
Since the rising of Canon 40mm f/2.8 STM, there are so many DSLR Canon camera users who get slightly confused to choose fix lens in small size and affordable price. For the size, Canon 40mm f/2.8 STM is the smallest lens of canon today. The length is just about 2.28 cm and its filter diameter […]
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There are perhaps still many of us that still don’t know the basic difference between the three types of cameras. But much of the masses usually choose the simple point-and-shoot pocket cameras over the rest, and it’s usually the right choice. Just point then shoot, it can’t get any simpler than that! So when do […]
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