orrie smith wrote:
With a lens, should be no problem, as they do not need a lot of repair. With a camera, and especially with Nikon, Nikon USA will not work on them. So, to answer your question, the downside of buying non USA equipment is the manufacturer may not service the equipment in the USA.
I don’t quite agree that lenses do not need a lot of repair. I found myself at one point with a Nikon 300mm f/4 that (I found out later) had a history of focus motor problems. The lens worked, but was very noisy.
It was used, but Nikon repaired the unit (replaced the motor) because it was a US model. It was not cheap, but I ended up with essentially a refurbished product.
The more complex the lens, the greater the risk you take buying non-US models. If buying from overseas, at least make sure you have the option to return defective products.