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
Do you delete images in camera? Have you ever discovered a ‘mistake’ shot that turned out to be one of your favorites? Everybody, it seems, uses the delete button on their cameras. Hey, there must be a reason it’s there, right? Heck, I know I’m guilty of abusing this button too. It’s about time though […]
Point of Interest is the gravitating aspect that will draw the viewers to a certain point of the photograph. Ideally, there is one point of interest (POI) in a photograph to ensure its viewers are able to understand the message conveyed by the photograph. There are several techniques to ensure the photograph’s viewers comprehend the […]
This is a fierce battle between two middle class DSLRs for this year. Nikon’s D7000 (D90’s successor) goes against Canon’s EOS 60D (somewhat of 50D’s successor, though in some aspects, the real 50D successor is the 7D). Although for starters I will that they are equally good, of course the features may differ slightly. Read […]
As we first enter the world of DSLR cameras, one of the confusing aspects is trying to translate the meaning in lens labels. In this entry, I would like to explain the various models of lenses and what that entails. For this entry, I will use Canon lenses as the case study. – Canon EF-S […]
If you have a digital SLR camera, you’ll find everything you need in this full-color reference to help you get the best results. Ten self-contained minibooks cover the basics of dSLR photography and address camera models from the five leading dSLR manufacturers. Topics include lenses, exposure, lighting, composition, processing and editing, a guide to manufacturers […]
The following are some common mistakes made by beginner and amateur photographers. The people at Panasonic found these via a survey they conducted, numbered in order of its frequency. 1. Most common mistake made by digital camera users, of up to 35.2% of the people surveyed, is the loss of battery power. Digital cameras, obviously, […]
The 18 megapixel Canon EOS 600D (called the Digital Rebel T3i in North America) is a new DSLR camera that sits above last year’s 550D / T2i at the top of Canon’s entry-level EOS line-up. The 600D / T3i offers a 1,040,000-dot vari-angle LCD screen, a 63-zone metering sensor – identical to the one used […]