Contact Image Sensors (CIS) offer an interesting alternative approach to conventional linescan cameras for industrial web applications such as the inspection of paper, textiles, glass or plastics. The technology offers significant advantages in terms of space requirements, ease of alignment, and resolution. With line rates up to 100 kHz, scanning widths up to 4 metres, very high resolutions and integral light sources, the CIS can be a very cost-effective choice in certain applications.