Samsung NX20 User Manual Ver.1.0 (English) - Page 24

DOF depends on focal length, DOF depends on the distance between the subject and, the camera

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Concepts in Photography DOF depends on focal length The longer the focal length is, the lower the DOF gets. A telescope lens with a longer focal length than a telescope lens with a short focal length is better to capture a photo of a low DOF. DOF depends on the distance between the subject and the camera The shorter the distance between the subject and the camera is, the lower the DOF gets. Therefore, taking a photo close to a subject can result in a photo of low DOF. A photo captured with a 100 mm telescope lens A photo captured with a 18 mm telescope lens A photo captured with a 100 mm telescope lens A photo captured close to the subject 23

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23
Concepts in Photography
DOF depends on focal length
The longer the focal length is, the lower the DOF gets. A telescope lens
with a longer focal length than a telescope lens with a short focal length
is better to capture a photo of a low DOF.
A photo captured with a 18 mm
telescope lens
A photo captured with a 100 mm
telescope lens
DOF depends on the distance between the subject and
the camera
The shorter the distance between the subject and the camera is, the
lower the DOF gets. Therefore, taking a photo close to a subject can
result in a photo of low DOF.
A photo captured with a 100 mm telescope lens
A photo captured close to the subject