How to test a new (Ultra Wide) lens - Sigma 8-16mm?

Started Nov 14, 2012 | Discussions thread
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slimandy Forum Pro • Posts: 16,747
Re: How to test a new (Ultra Wide) lens - Sigma 8-16mm?

scrane wrote:

I have had good luck with bookshelves. The correct focus plane can be adjusted so that shelves and rails show no perspective "distortion". I have never seen a camera that can't focus on a book's spine.

This is just a preliminary test to show unbalanced resolution across the field.

But would you know if soft corners were due to field curvature or were actually soft corners? Can you tell how this lens will perform when shooting landscapes? I would be more interested in how it coped with landscapes than bookshelves.

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