XTi

XTi is a model name used by Canon for a mid-range digital single-lens reflex camera in the EOS Rebel line, marketed in the United States as the EOS Digital Rebel XTi and in other markets as the Canon EOS 400D. It was introduced in 2006 as the successor to the Rebel XT and targeted amateur photographers seeking higher resolution and improved performance.

The camera uses a 10.1-megapixel APS-C CMOS sensor and Canon's DIGIC II image processor. It employs the Canon EF-S lens mount and remains compatible with EF lenses as well. The XTi features a nine-point autofocus system and an optical pentaprism viewfinder, with a 2.5-inch LCD on the rear for image review and menu navigation. Storage is via Secure Digital cards, and the body includes built-in flash and standard exposure controls suitable for beginners, along with various scene modes and manual exposure options.

In its reception, the XTi was praised for image quality and value within the entry-level segment, offering a solid feature set for its class. It was later succeeded by newer models in the Rebel lineup, such as the XSi, which introduced updates in autofocus, interface, and additional features.

Overall, XTi represents Canon’s effort to provide an accessible, capable DSLR for enthusiasts and new photographers, balancing image quality, lens flexibility, and cost within the early- to mid-2000s market.