You get you what you pay for with the Canon EF 200-400mm f/4L IS USM Extender 1.4X: superlative performance and flexibility.
The 55-250mm f3.5-5.6 STM fills a big hole for the dual-lens kit devotees of the company's latest Rebel models.
A fine camera, the Canon EOS Rebel T4i's more expensive 18-135mm STM kit (or body with another STM lens) is the only version that merits an unqualified recommendation. You can probably find better alternatives if you just want a sub-$1,000 dSLR for still photography.
The Canon EOS 60D is in many ways a great camera: fast, feature-packed, and with excellent photo and video quality. Some annoying aspects of its control layout dim its shine a little, however, so try before you buy.
The Canon EF 70-200mm f4 IS USM L lens is a professional grade 70-200mm lens without the size and heft, as well as price, as found in f2.8 versions.
A lightweight, compact design coupled with its stabilized 400mm-equivalent focal length zoom and affordable price make the Canon EF-S 55-250mm f4-5.6 IS a versatile lens for entry-level shooters and amateurs on a budget.
The Canon EF-S 18-55mm IS kit lens is a solidly performing medium-zoom lens, with good optics and image stabilization, that will appeal to more than just the entry-level crowd.
The Canon EOS Rebel XTi remains a very good first dSLR, but ultimately a disappointing followup to the XT, which cedes its lead to the Nikon D80.
The Canon EOS Digital Rebel XT is an exceptionally small and lightweight camera designed for amateur digital SLR photographers, but it delivers the responsiveness and image quality you'd expect from a semipro model.
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Though its performance has been surpassed by subsequent models, the Canon EOS 20D remains a top semipro dSLR choice.