| auto bracketing, if your camera has the feature, allows you to take 3 images (sometimes 5) at different exposures - underexposed, correctly exposed, and over exposed. often, if it's available to you, it gives you the option of how much you want the under and over exposed pictures to be, whether it's one stop or 2, or something in between. doing this allows you to choose which exposure you prefer between the several images generated of that one scene.
you can also do this manually, as you did with the two images, only you may have benefited from taking a third shot with the settings in between the first two.
concerning the terms, hdr is a method of combining several differently exposed images of the same scene to create an overall properly exposed image.
aperture and shutter speed (time) all contribute to your exposure. aperture and shutter speed are what you can control, and the exposure is the result. each controls a different element of the image, and the combination of the two affect how the image looks. |