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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

C MOS resolution

Brian McGraw

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I would like to know a little more regarding shooting and testing resolution with C-MOS sensors.

The question I am posing is...
When shooting a frequency or resolution chart that is only black on white, does the system even utilize beyer/debeyer, as color prediction isn't needed?

If you shot the same resolution chart, but only using 1/2 the frame and fill the other half with a Gamma/Density or MacBeth chart would you get the same results?

With CCD and Film, you would, but I am wondering if this is the case here :beer:
 
Analysis is done across all colours to get as much resolution and detail from the image as possible. The colours contain resolution information even if the object is not of that colour.

Resolution is the same no matter what is in the scene.

An optical low pass filter is used to ensure that minimal aliasing occurs.

Graeme
 
When shooting a frequency or resolution chart that is only black on white, does the system even utilize beyer/debeyer?

Bayer filter cameras always utilize the Bayer filters because they are built into the sensor.

as color prediction isn't needed?

FWIW, some still cameras had bayer filters that could be dissolved with the right mix of corrosive chemicals, making for a nice black and white camera.

If you shot the same resolution chart, but only using 1/2 the frame and fill the other half with a Gamma/Density or MacBeth chart would you get the same results?

Yes.

With CCD and Film, you would, but I am wondering if this is the case here

CMOS and CCD are the same as far as this is concerned. Both can (and most often do) have Bayer color filter arrays.
 
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