Understanding GN Value and how it’s Calculated
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...
Professional Cameras and Amateur cameras, what’s the difference?
Recently, someone commented on the photography blog about how a friend chose a used Canon 1D Mark IIn (2005) over a Canon 7D (2009). Their friend’s reason behind this decision is quite simple; because the Canon 1D Mark IIn is classified as a professional camera. So, what really differentiate a pro camera from a non-pro? In my opinion,...
What are Good Camera Lenses Like?
The following are important factors in assessing the optical quality of a lens: -A good lens has the same sharpness in the center as it does at the edges (bad-quality lenses have a corner softness). -Good lenses can also capture with sharpness at any focal length and at any aperture setting (except when it exceed the diffraction limit or at a...
Nikon D5100 Tips and Tricks
The Nikon D5100 is Nikon's newest camera. It offers the same technical image quality of the unbeaten Nikon D7000 in a smaller, lighter, less expensive package.The D5100 has a very similar 16.2MP CMOS sensor to the excellent one seen in the D7000 but, understandably, loses out on that camera's high-end build and feature-set. So there's no wireless flash control,...
Which is Best? Mirrorless Cameras vs. DSLR Cameras
Lately, there’s been a boom of a new type of camera system, the mirrorless camera. So what’s the difference between this and a DSLR? Which is best? Of course they both have their advantages and disadvantages. Let’s discuss them one by one. As the name suggests, a mirrorless camera is a camera that’s not equipped with a mirror....
