Mar 5, 2019
Are you going on a once in a lifetime trip and want to have photos that you can share with friends and family? Then follow this article to learn the steps you need to capture the photos that you want during your travels:
You have your subject, you have your digital camera, and you want to take complete control over your photograph with the correct exposure. Whether you’re shooting portrait or landscape photography, understanding exposure is critical in order to get the best in-camera shot possible. Simply put, exposure is light striking a sensor (or if you’re going old-school, a frame of film). Having good exposure can make or break an image so is critical to get right. You control exposure with three parameters: Aperture, Shutter Speed and ISO.
This is what’s called the Exposure Triangle:By adjusting the exposure settings, we can change our exposure to make the image brighter or darker. It’s important to be in manual mode in order to have more control over these settings and understanding them better. However, adjusting any one of these controls not only makes the image brighter or darker, it changes some other aspects of the image as well.
UNDERSTANDING DETAILS ENTAILED ON THE EXPOSURE TRIANGLE.
1. SHUTTER SPEED.
Shutter speed is the measure of time that a sensor or frame of film is exposed to light. By controlling how long you blast light into your camera, you decide how time is stopped in that final image. The difference between a hundredth of a second and a thousandth of a second can be the difference between getting an epic shot and not getting a usable image at all.Your choice of shutter speed comes down to what you want in your picture. Do you want your subject to be frozen so that you can clearly highlight areas of detail? Or do you want something more abstract, where motion blur reveals movement? Remember, fast shutter speeds mean less time for the light meter to hit the sensor, so the faster the shutter speed the less light available for the image. A slow shutter speed or longer shutter speed will have the opposite effect. If fast is necessary, then aperture and ISO are on your side to help obtain the image you desire.
The opening of the lens, otherwise known as the aperture, is both a technical and artistic tool for you as the photographer. By deciding:
- What lens to shoot with.
- what focal stop(f-stop) you prefer.
- How far you want to be from your subject, you'll be controlling the exposure and depth of field of the photograph.
3. ISO SETTINGS.
If you’re using film, your choice on ISO is limited to what the box of film says, but when you shoot digital photography, the ISO becomes a tool to work within exposure. ISO describes the sensitivity rating of your camera’s sensor. The sensor records the light that enters through the lens, passing through the aperture opening and moves past the shutter unit. The ISO settings can be adjusted to change the sensitivity. With higher ISOs come an increase in noise, or if using film. When you use a higher ISO (say around 1600 or 3200) the camera will capture a photo with less light coming into the camera. The lower light level is then amplified so that the final image is of normal brightness. You can use a faster shutter speed with a higher ISO in a low light scenario, at the cost of a lower image quality (due to the noise).
By understanding the exposure triangle and how shutter speed, aperture settings, and ISO work together, you can go out into the field in a variety of lighting scenarios and know how to adjust the camera settings to meet the needs of the image you want to capture.
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