Moire...

Started Mar 31, 2013 | Discussions thread
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forpetessake
forpetessake Senior Member • Posts: 4,858
Re: Moire...

In order to see moiré, in addition to weak or no AA filter, one needs to have a lens that would have still high contrast on those high spatial frequencies. Lenses work as low-pass filters, not many providing sufficient contrast for moiré patterns to occur. As a corollary, FF camera with the same MP is more susceptible to moiré than APS-C or smaller sensor.

I frequently notice moiré with Pentax-FA 24-90mm and 28-90mm lenses, even though Sony NEX-5N I'm using those lenses with has a weak AA filter:

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