Neewer Monocular Scope Conversion Adapter Ring for Canon EOS DSLR Camera / such as Digital Rebel XT Xti Xsi XS T1i T2i T3i T4i T5i SL1 T3 EOS 300D 350D 400D 450D 1000D 500D 550D 600D 650D 700D 100D&nbsp;1100D