Linked Questions

0
votes
1answer
372 views

What is the depth of field if the the focus distance is set to infinity?

If the camera format is 35mm, the focal length of the lens is 35mm, the aperture is f/4, the subject distance is 25ft, and the hyperfocal distance is 39'7", then what would be the range of focus when ...
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votes
2answers
189 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 ...
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votes
5answers
115 views

How does background blur and DoF vary with sensor size for a prime lens?

Let's assume I have a prime lens for full frame, with fixed specs (let's say 85mm f/1.8). Changing the lens is not an option, but I have a choice of a full frame camera and a crop sensor camera. The ...

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