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The D3100 lacks a built-in focus motor. In order to obtain autofocus with a NIKKOR lens, you would need to purchase a lens that has a focus motor. Nikon denotes this by the AF-S notation on the lens. The AF-S notation on the lens means that it contains Nikon's Silent Wave Autofocus Motor in the lens. Both of the lenses in this Macro Two Lens kit are AF-S type lenses. They are 100% compatible.
Sorry, there was a problem. Please try again later.Yes, this lens is compatible with that camera.
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