In praise of AA filters

Started Oct 23, 2013 | Discussions thread
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Steen Bay Veteran Member • Posts: 6,974
Re: Detail above Nyquist in MTF

rovingtim wrote:

Lee Jay wrote:

Lee Jay wrote:

Using the slanted line method of oversampling. That's s special case and no real detail can be found that way.

That has been my point all along. Software is 'creating' the appearance of detail over Nyquist in digital files.

Wrong.

So, what are those black lines in the image that are beyond Nyquist then?

That's in the resolution test chart shots in the reviews, not in the lens tests. In the lens tests the MTF-50 values are far below the Nyguist frequency.

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