Tuesday, August 26, 2008

DPT 101




I think i shall search for tips about digital photography when i don't have anything to blog about. :p I was always interested in taking good photos but i've been too lazy to read up on how to do it. I've always depended on luck to take good looking photos... :p



1. Warm Up Those Tones

Have you ever noticed that your shots sometimes have a cool, clammy feel to them? If so, you're not alone. The default white balance setting for digital cameras is auto, which is fine for most snapshots, but tends to be a bit on the "cool" side.

When shooting outdoor portraits and sunny landscapes, try changing your white balance setting from auto to cloudy. That's right, cloudy. Why? This adjustment is like putting a mild warming filter on your camera. It increases the reds and yellows resulting in richer, warmer pictures.

Figure 1a is shot outdoors in a mountain environment with the white balance set to auto. Figure 1b shows warmer tones thanks to using the "cloudy" setting and a pair of Costa Del Mar sunglasses over the front lens. (Canon PowerShot S200, Program mode)

Cool version.
Figure 1a.

Warm version
Figure 1b.

If you don't believe me, then do a test. Take a few outdoor shots with the white balance on auto, then take the same picture again with the setting on cloudy. Upload the images to your computer and look at them side by side. My guess is that you'll like the warmer image better.

2. Outdoor Portraits That Shine

One of the great hidden features on digital cameras is the fill flash or flash on mode. By taking control of the flash so it goes on when you want it to, not when the camera deems it appropriate, you've just taken an important step toward capturing great outdoor portraits.

In flash on mode, the camera exposes for the background first, then adds just enough flash to illuminate your portrait subject. The result is a professional looking picture where everything in the composition looks good. Wedding photographers have been using this technique for years.

With fill flash.
Figure 3. By placing the subjects in the open shade beneath a tree and turning on the fill flash, both the boys and the background are properly exposed. (Canon PowerShot G2, 1/250th at f-4, flash on)

After you get the hang of using the flash outdoors, try a couple variations on this theme by positioning the subject so the sun illuminates the hair from the side or the back, often referred to as rim lighting. Another good technique is to put the model in the shade under a tree, then use the flash to illuminate the subject. This keeps the model comfortable and cool with no squinty eyes from the harsh sun, and this often results in a more relaxed looking portrait.

Remember, though, that most built-in camera flashes only have a range of 10 feet (or even less!), so make sure you don't stand too far away when using fill flash outdoors.

3. Horizon Line Mayhem

For some mysterious reason, most human beings have a hard time holding the camera level when using the LCD monitors on their digicams. The result can be cockeyed sunsets, lopsided landscapes, and tilted towers.

Part of the problem is that your camera's optics introduce distortion when rendering broad panoramas on tiny, two-inch screens. Those trees may be standing straight when you look at them with the naked eye, but they seem to be bowing inward on your camera's monitor. No wonder photographers become disoriented when lining up their shots.

Finding horizontal lines.
Figure 5. How do you square up an image in the LCD viewfinder so it appears "level" when you view it later on the computer? Look for nature's horizontal lines and use them as guides. Sometimes you can use the line where the sky meets the ocean, other times you can use a strip of land as your level. In this case I used the shoreline of a mountain lake to help me align this composition. (Canon PowerShot G2, Aperture Priority exposure set to f-8, polarizer filter)

What can you do? Well, there's no silver bullet to solve all of your horizon line problems, but you can make improvements by keeping a few things in mind.

First of all, be aware that it's important to capture your images as level as possible. If you're having difficulty framing the scene to your liking, then take your best shot at a straight picture, reposition the camera slightly, take another picture, and then maybe one more with another adjustment. Chances are very good that one of the images will "feel right" when you review them on the computer. Simply discard the others once you find the perfectly aligned image.

If you practice level framing of your shots, over time the process will become more natural, and your percentage of level horizon lines will increase dramatically.


http://www.macdevcenter.com/pub/a/mac/2002/10/22/digi_photo_tips.html

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