Exposure is an software that uses a digital camera or webcam to create long exposure photos. A video can also be made into a long exposure photo if so desired.Exposure is useful just for fun, but there are also educational uses for it - i.e. in various science experiments.
The final image is saved in the same directory as Exposure.exe. By default this will be C:/Program Files/Exposure/result.jpg. (Windows Vista users have reported finding the image in /AppData/Local/VirtualStore/Program Files/Exposure.) The size depends on the resolution of the webcam, or if choosing to create a photo from a movie, this depends on the size of the frames in the movie. A standard webcam resolution is 320x240 pixels and the typical filesize of such a photo would be of the order of 20KB.

The license of this software is Free Trial Software, the price is $5, you can free download and get a free trial before you buy. If you want to get a full or nolimited version of Exposure, you can buy this webcam tool software software.