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Quiz 2 for Lighting

Fill flash-Ring flash

Fill flash is using your flash to fill‐in darker parts of a picture already lit by other light.
Slow sync camera shoots with a longer shutter speed and fires the flash
Rear curtain sync tells your camera to fire the flash at the end of the exposure
Front curtain sync tells your camera to fire the flash at the start of the exposure
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.
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.
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.
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
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.
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.
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.
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.
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.
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.
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.
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.
Created by: 1223047000