Fill flash-Ring flash
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Fill flash | is using your flash to fill‐in darker parts of a picture already lit by other light.
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| Slow sync | camera shoots with a longer shutter speed and fires the flash
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| Rear curtain sync | tells your camera to fire the flash at the end of the exposure
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| Front curtain sync | tells your camera to fire the flash at the start of the exposure
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| Built in camera flash | • common and straightforward
• but these built- in flash units don't have much range and you can't position the flash away from the camera to eliminate red eye.
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| Built in camera flash con't | • pictures taken with these units also have a characteristic flat shadow less lighting that minimizes surface textures and volumes.
• they can't be rotated to bounce flash off a wall or ceiling to soften the lighting.
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| Sync speed | • Sync speed is the fastest shutter speed you can use with flash
• You cannot use a faster shutter speed than the sync speed with flash.
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| Sync speed con't | If so you'll get a partial blackout of the image, and modern cameras override you electronically when the guide number = fstop x flash to subject distance
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| Sync speed con't | • More powerful flash units with higher guide numbers have a greater range, have faster recycle times, and make bounce flash more effective.
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| Sync speed con't | • i.e. one camera's built‐in flash has a guide number of 43 (in feet, with ISO set to100).Its optional accessory flash has a guide number of 180.
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| Sync speed con't | • When using an aperture setting of f/3.5, the range of the built in flash is about 12 feet and that of the external flash is over 50 feet.
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| Hot shoe flash unit | • hot shoe secures a flash on top of the camera and provides electrical connections between the flash and camera and also holds the flash in place.
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| Hot shoe flash unit con't | just slip the flash into the shoe and tighten a wheel to lock it in place.
• there are also hot shoe cords that let you mount or hold the flash away from the lens for more dramatic side lighting and to eliminate red‐eye.
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| Stroboscopic flash | • flash fires the flash a number of times at high speed to capture multiple images of the same subject in the same photograph.
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| Stroboscopic flash con't | • used in sports photography where it can be used to demonstrate or analyze a swing of a bat or club. This feature is usually set on the flash, not on the camera.
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| Ring flash | •These units fit around the lens and fire a circle of light on the subject.
•They are ideal for a close‐up photography such as that used in medical, dental, and nature photography.
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