Ads
related to: electronic flashlight controls for home camera reviews complaints yelpamazon.com has been visited by 1M+ users in the past month
Search results
Results From The WOW.Com Content Network
In order for the light beam to be received by the monitor, the remote control had to be directed towards one of the four photocells. The system responded to full-spectrum light so it could be activated or interfered with by other light sources including indoor light bulbs and the sun. Despite these defects, the Flash-matic remained in high demand.
Electronic controls may be operated by buttons, sliders, magnets, rotating heads, or rotating control rings. Some models of flashlight include an acceleration sensor to allow them to respond to shaking, or to select modes based on what direction the light is held when switched on.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
On some cameras the flash exposure measuring logic fires a pre-flash very quickly before the real flash. In some camera/people combinations this will lead to shut eyes in every picture taken. The blink response time seems to be around 1 ⁄ 10 of a second. If the exposure flash is fired at approximately this interval after the TTL measuring ...
Guide number distances are always measured from the flash device to the subject; if the flash device is detached from the camera, the position of the camera is irrelevant. Furthermore, unless a flash device has an automatic zoom feature that follows the setting of a camera's zoom lens, guide numbers do not vary with the focal length of lenses.
In electronic digital cameras, the mechanism is usually a programmable electronic timing circuit, which may, in some cameras, take input from a mechanical shutter contact. The flash is connected electrically to the camera either by a cable with a standardized coaxial PC (for Prontor/Compur) 3.5 mm (1/8") connector [ 1 ] (as defined in ISO 519 ...