In the United Kingdom, so-called speed camera vans feature four cameras mounted on the front, back and sides which can capture a speeding motorist at a distance of a half a mile. The front camera captures the license plate as the vehicle drives away while the side cameras capture vehicles passing by and a police officer uses a laser gun to determine the speed.
Older speed capture vans featured only a single camera and often did not capture the license plate of the car in question. The four-camera version can capture a vehicle that approaches from either direction, taking pictures from the front, sides and back as it passes by.Learn More
ISO on a camera stands for International Standards Organization, which is the governing body that sets sensitivity standards for sensors in digital cameras. ISO settings determine how sensitive the camera’s sensor is to light, while taking various types of photos.Full Answer >
A DSLR (digital single lens reflex) camera is a more advanced type of digital camera that uses mirrors to reflect the image into a viewfinder. When the shutter release button is pushed, the shutter opens and the mirror moves out of the way to allow light to pass through the lens.Full Answer >
The first camera, the pinhole camera or camera obscura, was invented by Alhazen, a prominent figure in the field of optics in the Middle Ages. Alhazen lived around the year 1000, but the exact year when he developed the pinhole camera is uncertain.Full Answer >
Video graphics array cameras are low-end cameras typically found on budget cell phones, but they can also be used as security cameras. Their photos are 0.3 megapixel, with video at the same quality as standard-definition television.Full Answer >