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Mastering exposure is key to capturing stunning photographs. This guide delves into the integral components of exposure: ISO sensitivity, aperture (f-stops), and shutter speed. ISO determines the sensor's sensitivity—lower numbers for brighter settings and higher numbers for darker situations, affecting grain and noise. Aperture controls light through the lens and influences depth of field, while shutter speed determines motion capture, whether freezing action or showcasing movement. Combine these elements for perfect exposure in any situation.
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Basic Exposure Controls SHUTTER SPEEDS APERTURE / F-STOPS ISO SENSITIVITY
ISO Setting - Controls the sensitivityof the sensor ISO Sensitivity -Lower number for brighter situations (100, 200iso) -Use a higher number for darker situations (400, 800, 1600iso) Higher number = more sensitivity = grain and noise in digital files
Higher the number, more grain and artifacts ISO Sensitivity
Aperture – controls the amount of light coming thru the lens • Little opening, “Big Honking Hole”! • Designated in “f-stops” f2.8, f4.0, f5.6, f8, f11, 16, f22 • -Smaller opening for brighter situations • (f8, f11, f16, f22) • -Wider opening for darker situations • (f2.8, f4. f5.6) Aperture orf-stops
Aperture orf-stops -Smaller opening for brighter situations (f8, f11, f16, f22) -Wider opening for darker situations (f2.8, f4. f5.6)
Aperture also determines the depth of field Or, what’s in focus from front to back Aperture orf-stops
Shutter Speedscontrols how fast the shutter opens and closes Designated by shutter speed dial or menu; 60th, 125th, 250th, 500th -Faster shutter speed freezes action (500th, 1000th, 2000th, etc) -Slower shutter speed for highlighting motion (30th, 60th, etc)
Shutter Speedscontrol how fast the shutter opens and closes @ f 16 Designated by shutter speed dial, menu: 60th, 125th, 250th, 500th Shutter speed also freezes or blurs the action!
Shutter SpeedsFast Shutter Speeds Freeze the Action1/250th, 1/500th, 1/2000th
Shutter SpeedsSlow Shutter Speeds Exaggerate the Action 1/30th or less
ISO + Shutter Speed + Aperturebalanced togetherdetermine proper exposure “Sunny 16 Rule?”
How will I know I have reached exposure Nirvana? What’s Proper Exposure?
But I’m using the GREEN setting… Scene Modes
Scene Modes Let your camera make the decisions! Lady = Portraits Mountains = Landscapes Flower = Macro Photos Runner = Action Photos Star – Night time Photos Others: “Food”, “Candlelight”, “Fireworks, “Snow”, “NightShot”, “Performance”, etc…
Scene Modes M = Manual Mode AV = Aperture Priority TV = Shutter Priority (Canon) S = Shutter Priority (Nikon) P – Evil, evil Program Mode
Scene Modes Aperture Priority – You set the Aperture and the camera selects the ISO Sensitivity and Shutter Speeds for proper exposure Shutter Priority – You set the Shutter Speed and the camera selects the ISO Sensitivity and Aperturefor proper exposure