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Your D3300's sensor is a smaller sensor than the one in the D810. Nikon denotes lenses made specifically for the smaller sensor DSLR's as DX. If your lenses have a DX on them, they will work in the D810. However, you will see a crop in your viewfinder as the lenses will have a smaller image circle. Here is some information on the DX NIKKOR lenses: http://www.nikonusa.com/en/learn-and-explore/article/ftlzi4xz/dx-nikkor-lenses.html.
Sorry, there was a problem. Please try again later.Yes most all of Nikon lenses will work with any of their FX or DX lines. DX is a cropped or about 2/3 of an FX (full size) style. A great advantage if you already have other lenses.
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