Help with new lens purchase

Started 5 months ago | Discussions thread
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MarshallG
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Help with new lens purchase
5 months ago

No, I'm not begging for money, although it sounds like it...

I found an ad on Craigslist for a brand new 70-200 f/2.8 Canon. It looks very legitimate. It's easy to tell if the box has ever been opened, etc.

I would love any advice at how to quality test this lens. I can set my camera up in a room at my office with lighting and a tripod. I know I can set up a focusing target, but I don't know how to test for centering or other flaws. I would appreciate any advice, as this is a $2,000 purchase and I don't want to make a mistake.

Thanks for any advice in advance.

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Please forgive my typos. I often post from my phone, and it is difficult to edit mistakes after I post.

 MarshallG's gear list:MarshallG's gear list
Canon EOS 7D Canon EF 50mm f/1.4 USM Canon EF-S 10-22mm f/3.5-4.5 USM Canon EF 70-200mm f/2.8L IS II USM +4 more
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