Nikon Speed Booster?

I've heard of the Metabones speed booster, which allows full frame lenses to be used on APC-S bodies. I was wondering if there is one which allows a Nikon FF lens to be used on a Nikon crop body. E.g. 50mm f1.4 ff lens -> 35mm f1/0 equiv. Are there any alternatives to the metabones speedbooster?

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Which 2 lenses do i buy with nikon d5500?

i was thinking of buying 35mm prime for indoor photography, buy i am not sure which zoom lens to buy.
i am interested in both wildlife and portraiture. My budget is around 25,000 INR or roughly 500$.
i am also open to suggestions if you have any with respect to both lenses

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What is the difference between AF Nikkor 50mm f/1.4D & AF-S NIKKOR 50mm f/1.4G?

What is the difference between the D & G?

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