Advanced Tips for Flash Photography

The Superior DSLR Brand: Is There Such a Thing?

5 Famous Figures’ Last Photographs Before They Died (part #1)

Wedding Photography Tips

Understanding DSLR Lens Sweet Spots and How to Get Them

Widjita Raya Muljadi Photography : Bokehlicious!

How to Take Spectacular Lightning Pictures

These Lenses were destroyed by an Angry Girlfriend

“Lux Nikon Kit”, The 24K Gold Plated Nikon Df Camera

Photography Ideas: Levitation Photography by Natsumi Hayashi

Understanding GN Value and how it’s Calculated

Posted by oneslidephotogaraphy On March - 15 - 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 what is guide number at OneSlidePhotography.com

5 Possible Reasons Your Camera’s Auto Focus isn’t Functioning Well

Even though autofocus is a default feature in digital cameras, there are still times when you feel like it’s quite a challenge to get the accurate focus point or your lens takes quite a while to lock onto a focus point. Don’t worry just yet, this is quite the normal and not always due to […]


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.


How to Change the Lens Safely

One of the advantages of a DSLR is that the user can interchange different lenses on the camera body to achieve a variety of photographic effects. DSLR cameras have a release mechanism to change lenses quickly and easily so you don’t miss that perfect photo. Here are some technique to change DSLR lenses. The advantage […]


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 […]


Creating the Zooming Effect using “Radial Blur” In Photoshop

Before, I’ve covered tips and tricks of zooming techniques in photography. Maybe there are those out there that have difficulty making it work. The biggest difficulty is synchronizing the zooming of the lens position with the pushing of the shutter button. Or another difficulty maybe the result turns out too shaky because the shutter speed […]


How to Create a Blurry Background in Your Photograph

Many beginners often ask: “How do I make the background of my photograph look blurry?” It is actually quite easy to achieve and it can be done in three easy steps. First of all, you will need a DSLR type camera because DSLRs have large sensors and the lenses are interchangeable. You can, however, try […]


Tips and Ethics to Abide By when Photographing Weddings

Marriage is a sacred event. It not only involves religious ceremonies of the wedding couple, but in many cultures, the wedding party upholds certain customs and traditions. Many different contingents are involved in the joyful day. Service providers (vendors) work hard in achieving a certain theme and atmosphere the wedding party wishes for. Among them, […]