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File:Canon EOS 500N.JPG - Wikipedia
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Canon EOS 550D (Rebel T2i / Kiss X4 Digital) In-depth review: Digital Photography Review
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Canon EOS Rebel T2i / 550D Repair - iFixit
Canon EOS 550D review: Canon EOS 550D - CNET
Canon EOS 600D - Wikidata
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Canon EOS 40D - Camera-wiki.org - The free camera encyclopedia
