Scanners/Tablets/Cameras

A scanner is a machine that can take an image and scan it, and then put it on a computer to be saved or edited. The average cost of a  drum scanner is about £250-£5000 depending on the size and quality of the scanner you want. The cost of a flatbed scanner is about £40-£100.

A graphics tablet is a thing you can plug into your computer and use, in programmes such as Photoshop, to draw. It comes with a pad and pen, it can draw very detailed pictures and most tablets have a pressure sensitive surface, this means that the harder you press on the pad the thicker and darker the line on the screen. They come in many different sizes from A6 to A2. Prices range from £50-£1500. The difference in quality of graphics tablets it the sensitivity, on a more expensive tablet the sensitivity is a lot higher. Some of the more expensive tablets have screens on them so you can see where you are drawing easier.

Cameras are used to take pictures, most cameras are portable and take quick and easy photos. Some of the cheaper cameras have lower quality and use what is known as digital zoom, this is when the image isn’t actually zoomed in it is just enlarged making the image quality lower. More expensive cameras, like the ones paparazzi use, have optical zoom, this uses glass to  properly zoom in on the thing you are looking at. Digital zoom cameras are about £50-£250, whereas optical zoom cameras are around £500-£2000. The three types of cameras are DSLR, point and shoot, and camera phones. The resolution of a camera is measured in mega pixels. one mega pixel has one million pixels in it.