Ephotozine Review: Z 100-400/4.5-5.6 S VR

Started Jan 25, 2022 | Discussions thread
JimKasson
JimKasson Forum Pro • Posts: 44,273
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2

JimKasson wrote:

Leonard Shepherd wrote:

kenw wrote:

As a simple thought experiment you might test a lens on 12MP sensor and because the sensor simply can't resolve the very finest detail the MTF results would show the center, edges and corners perform nearly the same.

Sorry - you seem to repeat a fairly common internet myth.

No lens out resolves any sensor, and no sensor out resolves any lens.

If a lens lays down significant detail at sufficiently high spatial frequency that the sensor cannot correctly interpret those frequencies, the lens is outresolving the sensor.

Here is an example of a lens outresolving a sensor, with a Nikon 180-400/4 wide open, set to 180mm, on a Z7, with crops from the center, the edges, and the corners.

The lens outresolves the sensor in all 9 locations.

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