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Questions tagged [circle-of-confusion]

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4
votes
3answers
278 views

How do I specify circle of confusion and depth of focus in practice?

This question is related to this one; I am asking a very similar one because I didn't see in the answers how to arrive to a numeric answer in practice. Suppose I'm going to shoot a portrait and have ...
0
votes
3answers
688 views

What are appropriate Circle of Confusion values for high-megapixel cameras? [duplicate]

Since the film days we have used 0.03 CoC for determining depth of field and similar calculations. In digital terms, does this best match with 6 or 12 or 24 or 36Mpixel full frame sensors? If this ...
3
votes
2answers
172 views

Why do viewing conditions affect Depth of Field?

There's a lot of information here and elsewhere about how things such as aperture, focal length, and subject/focus distance affect Depth of Field (DoF). Most people seem to understand that side of it ...
6
votes
3answers
2k views

How do depth of field and the circle of confusion relate to pixel size on the sensor?

I have been reading about depth-of-field and presume to have a sufficient understanding of what it means and how it is related to lens properties, lens aperture, focal length, sensor format size and ...
5
votes
1answer
430 views

For digital sensors and in terms of imaging medium, is the minimum CoC equal to the size of 1 sensor pixel or 2? And why?

For digital sensors and in terms of imaging medium, is the minimum CoC equal to the size of 1 sensor pixel or 2? And why? For example purposes using a 35mm Full Frame digital sensor where the pixel ...
3
votes
1answer
944 views

Why do some people say to use 0.007 mm (approximate pixel size) for the CoC on a Canon 5DM2?

The 5DM2 pixel size is approximate 0.00645mm in size and so some people talk about using 0.007mm as the CoC. I think canon said once they use 0.035mm for DOF charts, full frame normal is 0.033mm, ...
5
votes
2answers
8k views

How do you determine the acceptable Circle of Confusion for a particular photo?

I've noticed that several online and/or downloadable Depth of Field Calculators use different values for the acceptable CoC (Circle of Confusion) for some of the same camera models/sensor sizes. This, ...