100% compatible for Canon EOS 1000D EOS 100D EOS 40D EOS 450D EOS 500D EOS 50D EOS 5D EOS 5D Mark II EOS 60D EOS 6D EOS 77D. Canon EOS 6D, EOS 5D, EOS 77D, EOS 40D. They also play an important role inpreventing any stray light from entering the viewfinder whilst you’re looking down it.
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