Knowing how to use your camera's shutter button can effect the quality of your photos. On most, if not all of today's cameras, the shutter button is an important multi-function tool. Knowing how it works and using it properly can help improve your images.
Pressing the shutter button halfway or part way down usually activates the camera's light meter and focus mechanism. Holding the button in that position will lock the focus and exposure settings in place. You can then move or recompose your image in your frame based on those camera readings to improve your images. I will explain more about this in later posts as this is a very important tool for point and shoot cameras where you may not be able to manually set your exposure settings.
Once you have allowed your camera to calculate it's focus and exposure settings, and you have composed the shot you wish to take, you can press the shutter button the rest of the way down to activate the shutter and capture your image. How you do this can affect your pictures too.
If you press the button too hard or jerk the button, it will move the camera as you shoot and cause the images to be fuzzy. In some instances you may want to do this to create a certain effect but in normal photography any movement of the camera is to be avoided. You need to press the button down gently and smoothly to get the best image possible.
One of the most common errors everyone makes, including professionals from time to time, is to just press the shutter all the way down without hesitating an instant at halfway point to allow the camera to focus. Most of the time it takes less than a second for the camera to focus and set the exposure for the shot. But the common result is a blurry image that you can't use.
You should read your camera manual about all the functions your cameras shutter button does then practice using it to see how these functions work. You will be amazed how how much better your images can be if you know how your shutter button really works.
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