Does Resolution have a Limit? The Rayleigh Criterion

But is there a fundamental physical limit to resolution? It turns out, there is. The physical resolution of any image is limited by the Rayleigh criterion, which is dependent on the wavelength of the light and the aperture diameter. It is connected to diffraction and is an important factor for telescopes and microscopes. This video also mentions the role of Airy disks 🎥🎞️#photography #optics #physics #science #canon #limit #diffraction #camera #images #imageprocessing #airydisk

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[john-wiggains]

Love the topic. I was hoping you might get to talking about a certain pixel density being a physical resolution limit (like 250 ppi vs 500 ppi) etc. but I guess distance of view would matter.

Or for cameras that a Fullframe with perfect glass couldn’t do xyz or gets diminishing returns after a certain point.

[TimmmmCam]

Note that this is only true for linear scattering. In other words it assumes that none of the light from one of the sources scatters off the other source. So *technically* it's not really an absolute limit. Though in practice imaging past the Rayleigh limit is pretty much impossible because it becomes really ill-conditioned.

[ThunderBassistJay]

Vertical videos are a waste of available resolution. 😁

[Planarwalk]

I hate how I only know this because flat earthers misuse the rayleigh criterion to try and say things disappear bottom first due to diffraction.

Good explanation tho 👍