Fundamentals: Autofocus In Digital Cameras
All you wanted to know about using AF that fits on one page
There are two basic types of AF systems in wide use in digital cameras today. All of the D-SLRs use passive phase-detection AF, while most consumer models use passive contrast-based AF. "Passive" means the camera doesn't send a ranging beam out to the subject as do the "active" infrared (or near-infrared) AF systems used in many compact film cameras.
Studio-Quality Lighting Made Easy
Discover creative lighting effects for any budget
At some point in time, many photographers decide to try their hand at portrait or studio work. After disappointing results with their camera's built-in flash, they begin to look into studio lighting solutions.
Although the proper equipment makes it easier to get professional-quality results, you don't need to spend thousands of dollars. In fact, when you're just starting out, simpler is better.
From national parks to foreign lands, travel means new places and new sights for your camera. Here are tips on bringing home your best travel shots ever.
Photographers love to travel and bring back images from the places they visit. This is part of the heritage of traditional photography. We love to see what our world looks like, even if we can't visit every location ourselves.
Display Your Photos Right
Prepare your prints for framing and long life
Though discussions about photography in magazines, classrooms, message boards and camera clubs often focus on the latest photographic equipment or the hottest Photoshop tip, in the end, it really comes down to one simple thing: the print. It's nice to share an image via e-mail or by allowing a friend to look over your shoulder at the camera's LCD, but there's no better way of sharing your unique vision of the world than by reproducing it on paper.
Top Photoshop Techniques
Improve your image-editing skills with these typical adjustments for popular subjects
Photoshop is such a powerful application, with deep menus and a vast array of tools and controls, that even experienced users continually find new ways to use the program for better photography. One of the best ways to improve your skills with Photoshop is to see how other photographers use it for specific results, so we've compiled a few of our favorite techniques for particular subjects.
October 2006 HelpLine
Image Sharpness Revisited
* Image Sharpness Tip
* Card Reader Or Camera For Download?
* Quest For The Perfect Histogram
Color Spaces & Printer Profiles Revealed
Crayon color choices have some important similarities to how color spaces are defined and used When I visited the Crayola Factory in Easton, Pa., with my five-year-old daughter, I had an epiphany about color space. Back when I was in kindergarten, crayons came in boxes of eight colors. Nowadays, 64 colors is average. I knew all that, but what I didn't realize was that Binney & Smith (Crayola) makes hundreds of different colors. The typical set includes all of the hues kids need to make refrigerator-ready artwork. But it's possible to assemble a 64-piece set that includes some colors that aren't found in the standard box. And that's where color space comes in.
Trade Tricks: Sharpening The Right Way
Unsharp mask can work magic—if you just don’t overdo it
Sharpening is an important step in the image-editing process. While it won't make an out-of-focus image (or an image blurred by camera or subject motion) sharp, sharpening will increase the contrast between light and dark pixels at edges in the image, which makes the image appear sharper. Digital imaging provides lots of useful tools, but you still have to focus accurately and hold the camera steady when shooting.
Black & White With A Digital Camera
Concentrate on tonality for the best monochrome results
At its best, black-and-white photography is a true art form, as a glance at the works of its many masters demonstrates. Ansel Adams, Edward Weston, John Sexton, Robert Werling and William Garnett are some of my favorites, but there are many others. Study photo books of the masters' works, or better yet, visit a museum or photo gallery and enjoy their original prints. It's amazing what a talented photographer can do with just black, white and shades of gray.
The Color Of Light
Master white balance for greater quality and control
White balance is one of the new features we've had to learn to make the most of in digital photography. It's often seen as yet another technical hurdle photographers have to leap over in order to get a good image. Learn how to set it "right," and we'll have one less thing to think about while taking pictures.