Canon's entry-level DSLR from 2008 — the Rebel XSi (450D/Kiss X2) with live view.
The Canon EOS Rebel XSi, known internationally as the EOS 450D, was launched in January 2008 as Canon's mid-range APS-C DSLR. It introduced the 3-inch LCD screen to the Rebel line — the first Canon DSLR to carry this screen size — and added Live View mode, enabling composition via the rear LCD for static subjects. The 12.2MP APS-C CMOS sensor was the highest resolution in Canon's APS-C consumer range at the time. In the UK and Australian markets it was sold as the EOS 450D; the Japanese version was the EOS Kiss X2.
The 12.2MP APS-C CMOS sensor pairs with the DIGIC III processor. The 9-point AF system provides one central cross-type point; the peripheral eight points are line-sensitive. At 3.5fps the burst rate suits portrait and sequential shooting. No video recording — the 450D was released before Canon introduced DSLR video with the 500D and 5D Mark II later in 2008. ISO 100-1600 native, expandable to 3200. The 3-inch 230,000-dot LCD was large for its class at launch. Live View enables contrast-detect AF on a static subject via the rear screen. At approximately 475g with battery and card. Single SD/SDHC slot.
The Rebel XSi's primary distinction from the 400D was the 3-inch screen, Live View mode, and 12.2MP resolution (up from 10.1MP). The live view mode used contrast-detect AF and was slow for moving subjects — it was primarily useful for tripod-mounted static shooting. Canon's colour rendering and in-camera JPEG processing were strong for the class, and the 12.2MP output is sufficient for A4 and modest large-format printing. The Rebel XSi established the 3-inch LCD as a standard expectation for subsequent Canon entry DSLRs.
On the used market the Rebel XSi is very affordable and primarily suitable as an introduction to Canon EF/EF-S optics. The DIGIC III processor limits high-ISO performance by modern standards; output above ISO 800 shows visible noise. Shutter life is rated at 100,000 actuations — check via EXIF. Verify the Live View contrast AF operates on the rear screen. The 500D (2009) adds HD video; the 550D (2010) adds 1080p and improved sensor — either is preferable for photography that includes video. Compatible with all Canon EF and EF-S lenses.