gribse
ecdfa2f7c4
git-subtree-dir: temp-repo git-subtree-split: 6688605ad41f49d1eccead8d29421c658cad0100
27 lines
1 KiB
Markdown
Executable file
27 lines
1 KiB
Markdown
Executable file
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https://www.dpreview.com/forums/thread/4452729
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Some older AF lenses have aperture rings just like totally manual lenses
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lenses without this are designed to be controlled by the body.
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If you are adapting these then it's down to the adapter.
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Some are 'smart' adapters which translate the aperture signals from body to lens (with varying degrees of success), there are others that have a control ring that operates lens linkages (not found on EF), a few have an iris built into the adapter and the remainder do nothing to the aperture.
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There is a trick I've heard reported for EF lenses - set the desired aperture on an EF body with the lens mounted, press & hold the DOF preview & dismount the lens. Apparently this leaves the dismounted lens at the set aperture. I've not been able to check as I don't have an EF body.
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example :
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https://youtu.be/y1ZuK_dDweg
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https://youtu.be/YlVEOyW7NKI
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so id need to make an adapter that has a lever to push on the aperture co trop inside the lens :
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