Well.. Exposure is how long the camera takes to take a picture. A long exposure time gets a better and higher quality image when the camera is still. A short exposure is when the camera may move or something in the picture may move. So to keep it from blurring the camera captures an image for a fraction of a second. Auto exposure does this automatically analysing whats happening in the picture to create the best of both worlds basically.
The exposure is controlled by the camera's light meter
This answer depends on the location of the camera taking the picture. If the camera is on the ground, then the exposure would come out clearer if the camera was not mounted on a system that could automatically move the lens. If the camera was in LEO (Low Earth Orbit) it wouldn't matter if the earth was rotating.
In order to light paint, one must have a camera that has a setting to set exposure time. Then a light source must be used on a long exposure picture.
Whenever taking a photo try to put the sun directly behind you so that it is lighting up the target. Also your camera may have a setting that will change the exposure time for the picture, limit the exposure time to remove excess light.
it means "Exposure Value".
The "exposure triangle" in photography applies to the balancing of three controls available to the camera user : aperture, exposure, and film speed. Aperture setting governs the light received, exposure the total light over time, and film speed the resultant image recorded from that light.
to allow you to check the exposure.
József Mihályi in 1938.
ammount of light?
Automatic exposure time electronic exposure time mechanical exposure time
For basic light painting experimentation, you need to basically have three things:A camera where you can control the exposure time.A light source which is not very bright (a laser pointer for example, or an LED).A dark space.Follow these steps:Setup the camera so that it has a longer exposure time (such as 5 seconds).Place the camera in a way so that it looks at a flat surface (such as a wall).Turn off the light.Click the camera to start the exposure.Now project your light on the wall, and have fun making shapes with it.Once the exposure is completed, you should see what you projected on the wall in the shot.