A:AnswerYes, it comes with a one-year USA limited warranty + Nikon's 4 years USA extended service coverage for a total of five years of protection. (This is straight from the warranty information I got when I purchased the lens.)
A:AnswerYes and yes! I also have a Nikon d3500 and I just purchased this lens to take photos of flowers and various nature. I’m brand new to photography but I’m certain this is a great starter lens for Micro photography
A:AnswerYes, according to the Amazon fitting information, this lens will fit the Nikon D60.
https://www.amazon.com/Nikon-AF-S-Micro-NIKKOR-40mm-2-8G/dp/B005C50H2Y/ref=sr_1_1?dchild=1&keywords=Nikon+-+AF-S+DX+Micro-NIKKOR+40mm+f%2F2.8G+Macro+Lens+-+Black&qid=1601213657&sr=8-1
A:AnswerWell, it’s depends what “fast” really means to you. I think that for video is fast enough because its macro capabilities, the only think I noticed is that is really noisy.