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<blockquote data-quote="WayneF" data-source="post: 326641" data-attributes="member: 12496">
It is not about wide angle.&nbsp; At typical landscape distances (whatever that means), a general rule of thumb is to focus about 1/3 into the scene.&nbsp; But at close distances, its more like 1/2 way.&nbsp;&nbsp; This varies with distance of course, but it won't be far wrong.Because those three factors (aperture, focal length, and focused distance) is simply how DOF works.DOF is of course largely about magnification (when you want to reason it out, it explains how subject distance can balance out focal length when the magnification is the same),&nbsp; but we usually don't tend to think about magnification, not as such.&nbsp;Your diagrams here about aperture, focal length, and focused distance is exactly the practical way to think of it.</blockquote>

[QUOTE="WayneF, post: 326641, member: 12496"] [LEFT][COLOR=#000000] [/COLOR][/LEFT] It is not about wide angle. At typical landscape distances (whatever that means), a general rule of thumb is to focus about 1/3 into the scene. But at close distances, its more like 1/2 way. This varies with distance of course, but it won't be far wrong. Because those three factors (aperture, focal length, and focused distance) is simply how DOF works. DOF is of course largely about magnification (when you want to reason it out, it explains how subject distance can balance out focal length when the magnification is the same), but we usually don't tend to think about magnification, not as such. Your diagrams here about aperture, focal length, and focused distance is exactly the practical way to think of it. [/QUOTE]

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