Exposure Photography

Photo Techniques.info EXPOSURE PHOTOGRAPHY WHAT IS EXPOSURE? Exposure is the way one controls the amount of light that falls on a light sensitive device such as: Film or an Image Sensor Measured in EV, Luminance Controls to Know Light Shutter Speed -This controls how long light is let in -Measured in seconds -Ex: 1/1000 (fast) 8' (Very long) Meters Aperture Controls the size of the iris that lets light in -Measured in F-Stops -Ex:F 2.6 (Large opening) F16 (Small Opening) To properly expose an image, photographers use light meters. There are a couple main types: Built in Meters Measures the ideal light for a proper exposure with even highs and lows of brightness/darkness WARNING! This often averages the light for the entire photo, bad for high contrast lighting scenes Handheld light meters -Measures the light in scene -Wheel provides various camera settings to be used What is ISO? ISO measures the sensitivity of the film or image sensor you are using. Higher ISO's are more sensitive to light, making exposure easier in low light settings. Fast ISO's are great for high The Art of Exposure You vafy the exposuire settingsaccording toyourdestred effect. Aperture Basics: If you're into landscape photos or want a shot where every detail is in focus from light scenes or when it is a sunny day. NOTE: Faster IS0's tend to increase the noice in your photos, Raise ISO with caution. foreground to back, be sure to use the smallest aperture possible -this usually means longer exposures -bring a tripod- If you want to have a shallow depth of field, use a larger aperture such as f2.8. Shutter Speed Basics: Use a fast shutter speed to freeze fast moving objects and a slow shutter speed to blur them (you'll need a tripod for slower speeds)! HIGH DYNAMIC RANGES Certain scenes with both very bright and very dark areas that need to be properly exposed present a high dynamic range issue.most cameras aren't that high tech. The solution? Use High Dynamic Range photography, or combining multiple exposures together into one image with a wide range of light exposures. Graduated Filters also can work for High dynamic ranges by blocking out light in ypecific artas, like the sky in landscape photos 0000