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They are experiencing "afterimage." The following site explains the phenomenon and offers a simple experiment to demonstrate it: http://www.psychologie.tu-dresden.de/i1/kaw/diverses%20Material/www.illusionworks.com/html/afterimage.html The instructions are to stare at a picture of a black light bulb on t he computer screen and then to shift your gaze to a clear white section of the screen. In addition to that procedure, you can stare at the image as instructed and then close your eyes. In a few moments you will see the same result as you did when you stared at the white space. If you have a flash that you can fire, darken the room, set off the flash to light a nearby area that you are looking at (look at the area that the flash will light, not at the flash itself!), and then close your eyes. The afterimage phenomenon will entertain and instruct you. [spelvin]
What else can I help you with?
What is the best flash diffuser for Nikon cameras?
The best flash diffuser for Nikon cameras is the MagMod MagSphere. It is highly recommended for its ability to soften and spread light evenly, resulting in more natural-looking photos.
Do red light cameras flash?
Yes. I've seen the red light cameras in Maryland flash.
What are some brands available for flash video cameras?
There are various brands of flash video cameras. Many digital cameras can save in flash format or convert to it. These include Kodak, Polaroid, Canon and Nikon.
What is it a flash head?
A flash head is a removable flash that comes as an accessory to some cameras.
Which are the highest rated Sony Flash cameras?
Some of the higher rated Sony cameras with flash include the Sony HDR CX580, CX230, CX430 and CX260 model cameras. All of these models are high quality flash cameras that also include video capture.
Why are dogs afraid of cameras?
because of the flash.
Are red light cameras use infrared or flash cameras?
Red light cameras are usually high speed video cameras that use ambient light.
What are the negative effect of cameras?
The flash could blind you?
What are the compatible features of the Yongnuo YN685 flash for Nikon cameras?
The Yongnuo YN685 flash is compatible with Nikon cameras and features TTL, HSS, and wireless triggering capabilities.
What is a sentence for flash?
Old cameras used to use flash bulbs. The storm was over in a flash. A flash of lightning scared the children.
Why is xenon used in flash cameras?
Xenon has recently replaced LED lights in flash cameras due to its higher intensity. This intensity creates brighter photographs than the traditional LEDs.
Is the flash of a camera a source of light?
Yes. Most modern cameras use a xenon arc flash lamp.
