Item features:
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<br />Allows a Olympus OM Mount lens to be used with a Canon EOS camera with EF mount 
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<br />Supports electronic communication between camera and lens to enable manual control, manual focus, on-camera manual aperture control, manual exposure , AV and M Mode, program and infinity focus.
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<br />Maintain EOS optical system , ideal for metering of exposure control
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<br />Premium brass with chrome finish body for weight reduction preventing wear-and-tear
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<br />Integrated switch opens f/1.4 aperture diaphragm on compatible electronic lenses to help ensure focus accuracy
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<br />Locking mechanism for secure attachment of lens
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<br />Smart adapter focus indicator of green light and voice prompt
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<br />Item specification:
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<br />Brand: Selens the-third-generation Canon smart focus adapter
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<br />Model: OM-EOS
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<br />Color: silver 
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<br />Material: brass with chrome finish
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<br />Net weight:40g
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<br />Mode supports: M AV Mode
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<br />Compatibility: Olympus OM lens to be used with a Canon EOS DSLR camera with EF mount  like 100D, 1100D, 1000D, 300D, 350D, 400D, 450D, 500D, 550D, 600D, 650D, 700D, 10D, 20D, 30D, 40D, 50D, 60D, 70D, 5D, 5DII, 5D III, 6D, 7D, 7DII series 
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<br />Iten included:
<br />1x Lens adapter ring