This manual covers the Canon EOS 400D, also known as the EOS Rebel XTi, released in 2006. This digital SLR camera features a 10.1 MP APS-C CMOS sensor and the DIGIC III image processor, delivering high-quality images. It offers a versatile ISO sensitivity range from 100-1600, expandable to 3200, and a 9-point autofocus system for precise focusing. The camera includes an EOS Integrated Cleaning System for dust removal and supports continuous shooting at 3 frames per second. Its robust engineering ensures reliability for photographers seeking advanced capabilities.

This English-language Instruction/Owners Manual provides comprehensive guidance for operating and maintaining your Canon EOS 400D / EOS Rebel XTi. It details essential functions, including getting started, shooting techniques, playback options, and in-depth menu settings. The manual also covers custom functions and includes an appendix for further reference. By following the procedures outlined, owners and technicians can ensure optimal performance and longevity of the camera, covering aspects from basic operation to advanced configurations.