Jumat, 28 September 2012

How to Photograph a Scene When Contrasts Are Too Great for Your Camera

One of the biggest struggles with photography is taking photos of scenes which have a great deal of brightness in one area of the image, and too much darkness in other parts of it.

Because our eyes are much more complex and advanced than cameras, we can make the adjustments easily. For cameras, it is more complex, and one of the most effective ways around this is to take several images at differing exposures and merge them altogether.

This is a technique known as HDR (High Dynamic Range). DSLRs such as Canons are the best equipment for doing this, because they allow you to easily set differing brackets (or exposures) and take image after image very quickly. Be sure to take with you a spare battery with you, so you don't run out of power at the wrong time.

I personally find HDR a great technique if used right. When you first try it, it's likely that you will want to play with the extremes and come up with some very interesting results. Ultimately though, these results can look crass, because it's what everybody does, and so the best results are those where HDR is used, but only lightly applied.

How to get an HDR image.

1. Go into your camera's menu system and set the AEB for +1 and -1. This sets your camera up to take your image at the proper exposure, increased exposure and decreased exposure. It's also best to set your camera up on a tripod to ensure stability and take the shots as quickly as possible.

2. You will need to press the shutter release three times to get the set of three shots. The theory is, for the increased exposure, you are boosting the dark areas of the composition, the decreased exposure, you are bringing back the bright areas, and the other shot is a balance between the two.

3. Import the three images to your computer and open up an HDR program such as Photmatix or Photoshop.

4. Select the three images and import them into the program. They will be merged as one image, but they will contain lots of information which will enable you to adjust the image accordingly.

5. Play around with the settings, unfortunately it's impossible to say what to set each component to, because every image will be different, but there are plenty of sliders which will enable you to boost dark shadows, lessen the bright areas, and generally bring your image together.

6. The real trick is to ensure you have a great balance in terms of your entire picture, while at the same time making it look as real as you can. These are the best HDR images because they have a cross between real life and surreal. When you explore this great technique, you will see exactly what I mean by this. But when you go out on your HDR shoots, always take a tripod with you because this ensures that the three images you take are in exactly the same position.

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