This is fine for me and noting that if it breaks I'll likely have to send it to a friend in Japan (and hope customs doesn't intervene) and have them send it in for a warranty repair.
If I was to sell this lens at US (or even slightly cheaper than US prices) to someone in the US and they tried sending it to the US warranty repair they would be in for a rude awaking.
This most often shows up with camera equipment and B&H has a page on Grey Market ( https://www.bhphotovideo.com/c/find/HelpCenter/USGrey.jsp ) and you'll note that B&H offers the warranty repair on the gear (rather than the official licensed import warranty repair company).
You'll also note that a non-US resident buying a grey market item from B&H would face similar problems to what I would have hypothetically faced buying a camera lens in Japan.
> A resident of the USA may wish to make the buying decision based on price since the cost of shipping to a US service center or to B&H should be about equal. A non-USA resident should consider the cost of returning a product to B&H in New York for servicing as opposed to the cost of taking the product to a local warranty service center.
And likewise, for the video... the person has a (I presume) US warranty item that if imported into the UK would EU.
From the video transcript:
> ... for international buyers through eBay international shipping one of the benefits of eBay international shipping is that we may resolve Vero import issues on your behalf the Vero program is designed to protect you and protect rights owners intellectual property ...
As the seller/exporter of the lens, if you are shipping it to the EU without the proper warranty ( https://europa.eu/youreurope/business/dealing-with-customers... ) it is quite possible to find yourself in a bit of trouble if they tried to get a warranty repair on it.
Specifically for Nikon: https://www.nikonimgsupport.com/eu/BV_article?articleNo=0000...
> What are Grey Market products?
> Nikon products that are not imported by Nikon Europe B.V. and sold through it's sales channels are considered Grey Market products. These usually are genuine Nikon products that were intended for other Nikon markets; therefore, they may not meet Nikon’s specifications for European products and they may not perform as expected.
> No Nikon Warranty
> Grey Market products may contain a limited warranty from the seller, but they are not covered by a Nikon Europe warranty.
> Not eligible for warranty repair service
> Not eligible for Nikon Europe Warranty repair service, you will be charged.
And so, the person is exporting to the EU and there is no Nikon warranty on it, and presumably there is no warranty from the person selling it which is in violation of EU warranty laws on products and Nikon doesn't want to get in trouble with the EU either.