DOF--Again
May 18, 2012 09:12:40 #
photopop44
Loc: Roun Drock, Texas
There are many discussions about DOF some with much math involved, why not set and lock the Aperture and Focus, then press the preview button and look around? See what's in focus and what isn't.
One other thing, if we ever loose the name Ugly Hedgehog I would suggest Circle Of Confusion as a replacement.
One other thing, if we ever loose the name Ugly Hedgehog I would suggest Circle Of Confusion as a replacement.
May 18, 2012 09:35:55 #
I never use the math- I use the depth of field preview button, if I need to check it at all.
Some people like to take things to the extreme here and it does get interesting at times.
Good alternative name, btw
Some people like to take things to the extreme here and it does get interesting at times.
Good alternative name, btw
May 19, 2012 08:44:50 #
I just keep general rules in mind and they mostly work - wide open (f2.8+/-) object in focus, if I'm far enough away, whats in front also. F8- in focus front to back. Closed down, f22+/- - object and what's behind it in focus.
May 19, 2012 09:20:01 #
photopop44 wrote:
There are many discussions about DOF some with much math involved, why not set and lock the Aperture and Focus, then press the preview button and look around? See what's in focus and what isn't.
Many cameras have a DOF preview button for this reason.
Jim D
May 19, 2012 13:59:59 #
photopop44 wrote:
Check out Photog11's post on MWACs thread {middle of Pg 9}. Then go back to Pg 1 {please ignore the Trolls} and review the other examples and discussions regarding DOF. Hopefully your circle of confusion will be reduced ? ;-)There are many discussions about DOF some with much math involved, why not set and lock the Aperture and Focus, then press the preview button and look around? I would suggest Circle Of Confusion as a replacement.
http://www.uglyhedgehog.com/t-41242-9.html
PS: Many cameras do not have a preview mode - so having an idea of what your camera will do for a given lens is always a good idea.
Also - I have found the Preview button gives a darkened view in which it is difficult to fully appreciate Bokeh.
May 19, 2012 14:48:38 #
Bokeh and depth of field are two different things. Bokeh has to do with the quality of the out of focus areas, particularly the highlights. Depth of field is how deep the acceptable area of focus is.
May 19, 2012 15:04:50 #
GoofyNewfie wrote:
Yep - - understand that and did say what I meant. I cannot fully appreciate the out of focus areas when pressing the preview button because of the darkened view provided.Bokeh and depth of field are two different things. Bokeh has to do with the quality of the out of focus areas, particularly the highlights. Depth of field is how deep the acceptable area of focus is.
But - Goofy - - as a Pro - how often do you really use the preview button as compared to knowing what you're gonna get for any particular lens setting ?
May 19, 2012 16:09:09 #
Hardly ever and I don't have time to look up any chart. When I shot 4x5, I could check dof but that was under a hood.
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