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- sifeziwe
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good day everyone, new to the forum, still a novice. i would like to know how the concept of the circle of confusion work, thank you for your response
It exists but not something most photographers even consider when taking photographs. It’s a term used widely to sell you apps that are generally not required.
It's a rather confusing topic.
The circle of confusion is related to how far apart two points have to be before the average person can tell there are two and not just one that combines both. It is dependant on the final print size, viewing distance & the degree of magnification. IIRC It is usual to assume the final output is a 10x8" print viewed at arms length.
If you imagine a long straight road at night, when a car is coming the other way it's lights will start off just looking like a single point, as you get closer your eyes will at some point be able to tell there are two headlights. this is a similar factor.
In the same way magnifying the image would make points you can't tell apart big enough you can tell them apart.that makes total sense, when two points are further away from each other, will have a single point until they approach your direction
In the same way magnifying the image would make points you can't tell apart big enough you can tell them apart.
From the point of depth of field an image looks acceptably sharp as long as the blur is less than the size you can tell apart (circle of confusion). In reality a lens will only focus items at a specific distance, while for a range of distances either side it's focus well enough the human eye can't spot the blur. Determining how blurred an image can be yet look sharp is what the circle of confusion is all about.
good day everyone, new to the forum, still a novice. i would like to know how the concept of the circle of confusion work, thank you for your response