First introduced in May 2008 , Canon EOS 450D is a 12.0MP Entry-Level DSLR camera with a APS-C (22.2 x 14.8 mm ) sized CMOS sensor. 450D is also sold as EOS Rebel XSi / EOS Kiss X2 in some of the countries. Canon replaced the older Canon 400D with this model and later 450D was replaced with Canon 500D.
Pre-PMA 2008: Canon has today announced a new compact digital SLR, the twelve megapixel EOS 450D (Digital Rebel XSi). On the surface a very similar camera to the EOS 400D, however there are a range of significant improvements; twelve megapixel CMOS sensor, 3.0" LCD monitor, Live View with both AF modes (contrast-detect and passive), 14-bit processing and RAW, spot metering, improved AF, 3.5 fps continuous shooting, a larger viewfinder, SD/SDHC storage and a new higher capacity battery. All in all a fairly impressive range of usage oriented improvements and refinements.