Tips: Photographing at the Beach

Tips and Tricks: Birding Photography for Beginner

Download Photography PDF: Nikon D7000 User’s Guide

Superzoom Prosumer Cameras, How Good are They?

Photography ideas:  Out-Of-Focus Photography

5 More Famous Figures’ Last Photographs Before They Died

What is Vignette in The World of Photography?

Shooting Extraordinary Photograph Using Wide Angle Lens

Tips for Photographing Full Figured Models

Nikon D5100 vs Nikon D90

Understanding GN Value and how it’s Calculated

Posted by oneslidephotogaraphy On November - 1 - 2018

How to calculate GN value

How to calculate GN value



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

20 Quick Tips for Beginner Photographers

Here are 20 quick tips to get you started as a beginner photographer. Maybe you’ve known some of these, but hopefully you’ll learn something new. 1. To practice your panning skills, photograph objects moving at normal speeds (a person riding on a motorcycle, for instance). Use the shutter priority mode and set your shutter speed […]


Fill In Flash Photography Tips

Fill flash is a photographic technique used to brighten deep shadow areas, typically outdoors on sunny days, though the technique is useful any time the background is significantly brighter than the subject of the photograph, particularly in backlit subjects. To use fill flash, the aperture and shutter speed are adjusted to correctly expose the background, […]


Tips: Photographing Fish in Aquariums

Photographing a subject that’s inside an aquarium, such as fish, can be difficult. Limited lighting and the ever-moving fish are challenges you’d have to face when trying to photograph. The following are a few tips for producing a successful photograph: 1. Determine the correct exposure and white balance Our cameras usually choose an exposure that’s […]


Auto-Focusing Tips for Your DSLRs

Focusing accurately is important in getting sharp photos. Photos with an offed focus is difficult or almost beyond repair.Back in the day, there was only manual focus. Manual focus are rather difficult for DSLR cameras because the viewfinder is smaller and less bright. Fortunately, there’s now auto focus in modern DSLR cameras.Even so, we must […]


Ten Things You Should Know about Auto Focus

The Auto Focus (AF) System in a camera found in the 1980’s is an important discovery in the world of photography and has had a major impact in bringing convenience to photographers. Without the Auto Focus, we would have to manually adjust the focus on the lens to really precisely focus on the objects we […]


Street Photography Tips for Dummies

Candid street photography, or candid portraits, can be some of the most interesting photos captured in everyday places. Heading out into the crowd with a camera is exhilarating and intimidating at the same time. Great photographic scenes play out on the streets right before your very eyes, but people are quick to recognize the camera […]


5 More Famous Figures’ Last Photographs Before They Died

1. Lady Diana The above photo was the last photo ever before the crash happened. Many press/paparazi raced to print it as the last photo of the princess. As seen, only her golden hair is visible in this photograph. The photo was taken on the car ride from Hotel Ritz in Paris at around 12:20 […]