buying new lens from craigslist - any gotchas or caveats to watch out for?

[LordSnailz]

Thinking of picking a new w/ warranty lens from craigslist ... is there anyway to tell whether the item is really authentic and comes with the USA warranty?

How can I tell the difference between a real vs grey market item?

 

[996GT2]

In most cases the manufacturer won't honor your warranty unless you send in a copy of the original receipt along with the USA warranty card. Make sure you get a copy of the receipt from the seller.

 

[jpeyton]

A new lens will come with the appropriate paperwork so you know it's authentic and has a USA warranty. You will need a copy of the seller's original proof of purchase to be able to use any manufacturer's warranty. Also check to see whether the original vendor was a authorized dealer.

 

[Brutus04]

Watch out if they offer you a massage... :Q

 

[AndrewR]

Make sure that you check the aperture blades (for oil) and the condition of the glass (for scratches). Definitely mount the lens and check focus accuracy, aperture, and everything else.