Barrel distortion or blur units in 18-200 mm lens?

Started Apr 25, 2012 | Discussions thread
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nycglobal Junior Member • Posts: 44
Re: Blur = ability to resolve detail

I can tell you with my experience using the 18-200, at 200 you get significant "pincushion" affect (I think) where you'll see darkened corners on your shots. It's enough to get me to shoot at less than 200 and then crop.

Here's a great example:

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