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Are their "good" and "bad" copies of lenses?

Started Jan 6, 2015 | Polls thread
bronxbombers4 Veteran Member • Posts: 3,387
Re: Are their "good" and "bad" copies of lenses?

Graham Meale wrote:

I've never returned a lens, and have always been happy. This means either ...

  1. I've been lucky
  2. I'm not fussy enough
  3. The variation between lenses is not enough to lose sleep over.

Not sure which.

#1 with a little bit of #2 (and of course some #3 on average)

but believe me you would've returned the first 17-40L I got!

And I've seen differences between copies of this and that that are enough to reasonable be able to tell the copies apart.

Mostly it's not too bad, but some designs have higher tolerance requirements than others and just in general if you get one of the lesser copies and one of the very better, you can definitely see the difference.

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