Food Photography for Beginners

Why would shooting in JPEG be better than RAW

Are RAW Files Important in Digital Photography?

Tips to Learning Self-Taught Photography

This Camera Returned, after 3 Years Missing at the Bottom of a Muddy Creek

Star Trails Photography Tips and Tricks

Canon EOS 1100D vs Nikon D3100, Which One Better?

A Beginner’s Guide To Landscape Photography

Photography Business Tips: 7 Tips for Stock Photo Selling

Download Photography Software: HotPixel Adobe Photoshop Plug-in

Understanding GN Value and how it’s Calculated

Posted by oneslidephotogaraphy On August - 10 - 2017

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 in photography at OneSlidePhotography.com

The Superior DSLR Brand: Is There Such a Thing?

Canon vs. Nikon? Olympus or Sony? What about Pentax? I’m not going to boast about one particular brand and compare it to others in this article. I just want to note a few points concerning this: – There are many out there willing to get passionately emotional (like, veins popping out of neck type of […]


The Most Phenomenal Selfie Photos!

Selfies have become quite the phenomenon. Everyone’s doing it these days; from everyday folks, celebrities, presidents, and even astronauts. Here are some selfies that have been featured and plastered all over the internet:


5 Common Rookie Mistakes when Buying a Camera

For those of you new to photography, shopping for a new camera can get quite confusing. Oftentimes beginners or amateurs of photography spend countless hours in the store and still end up buying the wrong product (not what’s right for their needs) because lack of knowledge and information. In order to obtain the right digital […]


How to Find Out the Shutter Count on a Canon Camera

Shutter Count is the threshold of how long a camera can be used (how many times the shutter can be triggered). Each type of camera usually have different shutter count limits. For instance, a pro-series camera an average of 500K shutter counts. Entry levels has an average of 300K.


12 Tips for Candid Photography

There is a term in photography, candid shots, where the subject of the photograph is not in a controlled position or unaware of the camera (photo coverage). The resulting picture looks more natural, spontaneous, and less contrived. The following are tips for successful candid photography: 1. Bring your camera everywhere. Be ready to shoot at […]


9 Easy Steps to Achieve Panning in Photography

One of the most creative ways to show movement is to use a technique called panning. The image featured on this page is an example of panning. Panning is a photography technique that “freezes” a moving subject while adding motion blur to the background, giving the viewer a distinct sense of movement in the image. […]


Common Mistakes in Cleaning a Camera or Lens

A camera is, of course, an essential asset to a photographer. To protect said asset, regular maintenance is necessary. But there are many novice photographers who does the opposite in the name of maintenance. Instead of keeping it at tip top shape, they end up unknowingly damage their valuable camera. What are the do’s and […]