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Forum: Pentax SLR Lens Discussion
09-21-2012, 10:22 AM
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Forum: Pentax SLR Lens Discussion
09-21-2012, 08:02 AM
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Macro photos usually require high f-stop settings to achieve adequate depth of field. You can make the most of what little depth of field you have by aligning the subject matter with the plane of sharpest focus. In genuine macro work depth of field is independent of focal length; a 100 mm lens at 0.5X therefore has the same depth of field as a 35 mm lens at 0.5X, as long as they are at the same f-stop. Also, unlike with non-macro photography, the depth of field remains symmetric around the focusing distance (front and rear depth of field are equal).
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