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Post by olroy2044 on May 30, 2010 13:38:52 GMT -5
Interesting discussion. I use the DOF button on my SRT's quite frequently, usually when shooting at large openings. I use them when "pre-focusing on a spot where I anticipate an event to occur.
For example, when shooting at air shows, I will focus on a spot on the taxiway, check the DOF preview, then watch for the aircraft to enter the frame, and be reasonably assured of acceptable focus. In this example, the subject is usually too close to rely on hyperfocus. Roy
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keith
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Post by keith on Jun 10, 2011 0:29:56 GMT -5
What the Depth of Field button does is stop the aperure down to what will be used for the exposure so the image in the viewfinder will be darker - not so much light available! You will find DOF tables at this URL if that's of any help www.dofmaster.com/doftable.html
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mickeyobe
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Post by mickeyobe on Jun 10, 2011 11:01:06 GMT -5
Never found them any use. They always seemed rather optimistic (as to what was in and out of focus) to me. Dave, I think "Depth of Field" should be called "Acceptable Depth of Field" as what is acceptable to one photographer may not be to another depending upon one's vision and/or standards. Mickey
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daveh
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Post by daveh on Jun 10, 2011 16:47:49 GMT -5
Mickey, dead right. I took some photos today and (annoyingly) I have the focus set to "servo" rather than single shot for the first dozen or so. While something in the photo (or at least in the ether) will be spot on focus wise. it is not so on the only thing that really matters - when it's of a person 'the eyes'. Now if the enlargement is small, it is just about acceptable. As the enlargement increases so does the unacceptability. A small f-stop would have improved things a bit more, but in truth the photo would still not right - well not to my eyes anyway.
Dave.
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