te that resolution is stated in effective pixels. This is the total number of pixels excluding the pixels used for colour balancing and the pixels outside the range of the lens. Zoom capability is simply a function of the lens design (optical zoom) or the resolution available (digital zoom depends on reasonably high resolution SO that you can throw most of the picture away and still have acceptable quality). ISO sensitivity is the sensitivity available from the sensor array and is equivalent to the sensitivity rating for 35-mm film. Opinions might differ as to what constitutes a high-end camera SO this has been widely defined above as anything that costs between £600 and £6000! 8.3.5 Digital Camera Performance Benchmark 2011 Six years on £300 buys a midtier camera such as an EOS Canon 1000D with a CMOS sensor providing a resolution of 10.1 Mp and an ISO rating of 1600, a seven-point autofocusing system with spot monitoring, the ability to shoot images at 3 frames per second and a 2 GB memory card. £1000 buys a higher-end version such as the EOS 50D with 15 Mp resolution, an ISO rating of 12800, a nine-point AF (auto focus) system and the ability to shoot images at 6.3 frames per second. The higher ISO ratings allow for fast shutter speeds in low light conditions. An equivalent value Nikon adds in an ability to capture full HD (1920 X 1080) movie clips with sound. Nikon started adding WiFi to some models in 2005 but the market impact of this functionality has been limited. This reinforces the point made earlier that wireless connectivity is apparently not as compelling a proposition as anticipated by some vendors. If you have £10 000 burning a hole in your pocket then you could buy a Pentax 645D with a CCD sensor providing a medium format image with 40 MP resolution and a 77-point sensor. User-Centric Software There are a number of advantages to using an SLR camera. First, what you see is what you get (a hinged mirror behind the lens reflects the image up into the viewfinder), secondly the user can choose from a v