Auto Exposure Bracketing, or AEB, is a camera feature that allows photographers to capture multiple images at different exposure levels. This technique is especially helpful in situations with challenging lighting conditions, where achieving the perfect exposure in a single shot is difficult. By taking multiple shots at varied exposure levels, you increase your chances of capturing a well-balanced image or can merge exposures for a high dynamic range (HDR) effect.
What is AEB and Why Use It?
AEB takes three or more consecutive images with slight adjustments in exposure for each shot. Typically, one image will be underexposed, one will be correctly exposed, and one will be overexposed. This technique is useful in high-contrast scenes, such as landscapes with bright skies and darker foregrounds, where a single exposure may fail to capture all details.
How to Use AEB
Most DSLRs and mirrorless cameras come with an AEB setting. To use it effectively, follow these steps:
- Access your camera’s bracketing menu, typically found under exposure settings.
- Select the number of shots you want to take (usually 3, 5, or 7).
- Set the exposure increment (e.g., 1 or 2 stops) between each shot.
- Compose your shot and press the shutter once to capture all bracketed shots in succession.
When to Use AEB
AEB is particularly valuable in the following situations:
- High-Contrast Landscapes: Capture bright skies and shadowed landscapes in a single frame.
- Sunrise and Sunset Scenes: Balance the light from the sun with darker foregrounds for better detail.
- Architectural Photography: Ensure well-exposed interiors and bright outdoor light simultaneously.
Combining AEB with HDR
AEB is often used to create HDR images by merging the bracketed exposures in post-processing software like Adobe Lightroom or Photoshop. This method produces a single image with a rich dynamic range, capturing details in both highlights and shadows.
Tips for Using AEB Successfully
- Use a Tripod: For consistent framing, especially if combining exposures later.
- Experiment with Exposure Increments: Test different increments (1 or 2 stops) based on the scene’s contrast.
- Try AEB in Low-Light: Capture shadow and highlight details in scenes with minimal light.
Auto Exposure Bracketing is a powerful tool that can help capture balanced, detailed images in complex lighting conditions. By mastering AEB, you can bring out depth and detail in any high-contrast scene.