Re: Official: Fujifilm GFX 50S Medium Format Announced!
Jman13 wrote: rbf_ wrote: RustyBug wrote:
Guy,
You\'re making the assumption that micron size of the pixels is the determinant factor in the amount of diffraction being projected / captured. It\'s not. It\'s just a factor in whether you are containing the captured diffraction within a single given pixel or capturing it across multiple pixels. Slicing the sensor into 1,000,000,000 MP doesn\'t change the amount of diffraction ... it only changes how many pixels are making up the area of the diffraction (which will still be a constant compared to the projected image size capture by the whole sensor, and subsequent printing size @ magnification)
Certainly using smaller pixels will give the illusion of more diffraction on an individual pixel 100% basis comparison, but diffraction is a product of the optical projection, not how small you slice it.
Particularly if it were a lens optically designed for film with a more generous tolerance for angle of light. I imagine reducing pixel size on a digital sensor would definately cause more pronounced diffraction, possibly even earlier...
No....this has nothing to do with pixel shading....this has to do with diffraction of photons as light rays pass through an opening. It\'s a physical property of light and is well defined by simple equations that very clearly describe the reaction of light to an opening.
But different lenses degrade image quality differently on the same system and sensor and that is what is commonly called diffraction even if technically incorrect by definition....
Sep 20, 2016 at 09:49 PM
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