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Results tagged with depth-of-focus
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user 70370
The distance that the sensor can be moved along the optic axis while the image remains in acceptably sharp focus. Not to be confused with depth of field.
2
votes
Accepted
Why is depth of field not always symmetrical about the object, yet depth of focus is practic...
It's because depth of field is based on human perception.
At short focal distances DOF is symmetrical, and it is shallow. It is shallow because there is a higher degree of magnification...i.e. details …
- 19.4k
10
votes
What causes images to have flat depth?
It is typically called "lens compression," where things farther away appear nearer to the subject/closer together. And the opposite of this is typically called "lens distortion," where something close …
- 19.4k
0
votes
Does shift based perspective correction have any effect on focus?
Possibly. That is because when the lens is shifted it is using the periphery of the objective lens and not the center. The actual result would depend on the focus field curvature of the lens. It is ty …
- 19.4k
2
votes
Is this diagram I've drawn in regards to Depth of field correct?
i1-i and i2-i should not be the same. What makes them symmetrical w/in the depth of focus is that their resulting blur radiuses are the same size at the image plane... i.e. o1 and o2 record equally ou …
- 19.4k