Does The Sigma MC-11 Stop Down The Lens When You Change The Aperture?

Started Dec 2, 2016 | Discussions thread
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PedrB Forum Member • Posts: 52
Does The Sigma MC-11 Stop Down The Lens When You Change The Aperture?

Can anyone tell me if the Sigma MC-11 adapter for Sigma's Canon EF lenses actually stops down the aperture to the selected f-number or does it just simulate the effect and leave the iris stay wide open until you pull the trigger?

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