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In optics, a circle of confusion (CoC) is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source. It is also known as disk of confusion, circle of indistinctness, blur circle, or blur spot.
Jun 20, 2021 · Learn what circle of confusion is and how it affects focus, sharpness and depth of field in photography. See visual explanations, videos and calculators to understand this concept better.
Learn what the Circle of Confusion is and how it affects the sharpness and depth of field of your images. See how different apertures, lenses and focus distances create different effects and compare them with diagrams and photos.
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Jun 7, 2021 · Learn what circle of confusion is and how it affects the sharpness of your photos. Find out how to adjust the aperture, focal length, and sensor size to control the optical blur.
Learn how to calculate the Circle of Confusion, the diameter of a blur spot that is seen as a point in a photo. Use the calculator to adjust the CoC for different sensor sizes, print dimensions, viewing distances and visual acuities.
Jul 5, 2022 · By N-Photo, Lauren Scott. published 5 July 2022. The science of circles: what’s really going on when parts of your scene aren’t quite in focus. (Image credit: Future) Circles of confusion in photography are aptly named, and if you're not sure what the term actually means, you're not alone!
The circle of confusion l = ylabel('Diameter of circle of confusion (um)'); % set(l,'Position',[-0.07 31.6,-1]) Change f-number, but not focal length, and re-calculate optics = opticsSet(optics,'fnumber',4); c = zeros(size(oDist)); for ii=1:length(oDist) c(ii) = opticsCoC(optics,oDist(ii),'um'); end hold on semilogy(oDist,c,'g-'); grid on
