The Most Iconic Photographs in History

Posing Techniques for Photographing Model Portfolios

[Demo] Sound-Activated Camera Trigger v.3 for High Speed Photography

Fixed Lens vs Zoom Lens, Which One is Better?

CCD vs CMOS-DSLR Camera, Wich One is Better?

Tips on Photojournalistic: Shooting During Difficult Moments

5 Habits that Improve Your Skills In Photography

Thanko Mame Cam Cute Micro Camera

Facts About Amateur and Professional Cameras

Forever Alone Photograper!

Understanding GN Value and how it’s Calculated

Posted by oneslidephotogaraphy On March - 9 - 2022

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 how to calculate guide number at OneSlidePhotography.com

Basic Camera (DSLR) Settings that must be understood

Believe it or not, there are still many owners of digital cameras that still do not understand the basic settings of their cameras. In result, they only rely on the Auto mode when shooting and accept what they come up with as adequate. Yet we know that the camera has a lot of settings and […]


Drown For Two Years Long, This Memory Card Survived!

If a camera digital which is not designed to be water-resistant fell into the sea, what could possibly happen? The hugest possibility is the images saved inside the camera would be damaged. Maybe that’s exactly what Paul Burgoyne thought when his camera (Panasonic Lumix) was drowning to the sea, together with the ship he was […]


Li Wei Photography – Work Scene

Li Wei is a well-known photographer. His imagination knows no limits and his works of art are truly amazing, some even disturbing, but none of the less spectacular and different. Only by looking at Li Wei’s photos you get sucked in a world of fantasy and unlimited possibilities.The contemporary artist Li Wei defies gravity by […]


CCD vs CMOS-DSLR Camera, Wich One is Better?

An image sensor is a device that converts an optical image to an electric signal. It is used mostly in digital cameras and other imaging devices. Early sensors were video camera tubes but a modern one is typically a charge-coupled device (CCD) or a complementary metal–oxide–semiconductor (CMOS) active pixel sensor. Today, most digital still cameras […]


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 […]


Camera War: Nikon D3 vs Canon EOS 1D mark III

NO BRAND WAR…it just a Camera war..=)..just for fun.. Hope you enjoy it..


How to Clean Your DSLR Sensor

Sensors allow DSLR cameras to capture light and produce the digital image. It is, in short, the heart of a DSLR camera. Because they are charged, they have a strong tendency to attract dust particles. Properly keeping the lens cap on when the camera is not in use would usually be enough to protect the […]