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Questions tagged [depth-of-focus]

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.

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222 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 ...
3
votes
2answers
118 views

Does shift based perspective correction have any effect on focus?

Consider a photographer with an SLR camera and a PC lens attached in its default, unshifted position, standing on the ground at the base of a columned building whose height is X times that of the ...
2
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1answer
371 views

Is there a way to add depth map metadata to a jpg?

I want to make Facebook 3d photos directly from the computer. I understand how depth maps work and also how to extract them, but what about embedding them so you can make your own custom photos and ...
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2answers
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How does aperture affect focus area? [duplicate]

How does the aperture affect the focus area? Here are some examples: With an 35mm(50mm)/f1.8 prime lens What f-value will bring a group of people standing in five rows into focus? What f-value will ...
10
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1answer
7k views

What is the difference between depth of field and depth of focus?

Reading this answer I realized that I didn't know the difference between the two depths (of field and focus). Browsing related questions didn't reduce the blur (!) between the two... Wikipedia ...
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4answers
89k views

What is back-focusing?

What is back-focusing? Is it something I need to be worried about, or can I just live with it? How can I tell if my camera/lens is sufferring from it?