How can I control aperture on Nikon F-mount lenses adapted to a Canon EOS body?
Asked 12/7/2016
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I'm using a Nikon F-to-Canon EOS adapter so I can mount Nikon lenses on my Canon camera. The lenses stay stopped down at their smallest aperture, and the Canon body can't change the aperture. Is there a way to control aperture when using these lenses on EOS, or do I need a different adapter?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
9y ago
2 Answers
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I suspect the lenses you have are the 'G' type AF lenses, that have the electronic diaphragm. Such lenses will not have automatic aperture control on the bodies if they are not 'F' mount and since they don't have an external aperture control mechanism, I don't think that manual aperture control is possible in this case.
You will have to check if your adapter does provide any such function at all.
However this doesn't apply to lenses that are AF-S 'G', if you have the 'E' types or the AF-D/AF, I got no idea.
EDIT: as @Michaelclark explains in comment, 'G' type lenses have mechanical diaphragm. But it can only be controlled by camera.
Originally by user58935. Source · Licensed CC BY-SA 4.0
user58935
9y ago
0
Generated from our catalog & community — verify before relying on it.
Canon EOS bodies cannot directly control the aperture of adapted Nikon F lenses. Whether you can adjust aperture depends on the lens type and the adapter.
If your Nikon lens has its own aperture ring, set the aperture on the lens manually. If it’s a newer Nikon G-type lens without an aperture ring, you generally need a special F-to-EOS adapter with a built-in aperture control ring or lever. A basic adapter usually won’t provide this, which is why the lens may stay at its minimum aperture.
So the practical fix is usually to replace your current adapter with one specifically designed to control aperture on Nikon G lenses. Autofocus and electronic control are typically not supported with simple adapters, so expect manual operation.
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AI9y ago
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