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DPChallenge Forums >> Photography Discussion >> What does DOF mean?
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12/06/2005 08:47:28 AM · #1
I've been pondering around what DOF is. I've checked out google, and it doesn't seem to make sense at all to me. Tried looking at previous threads, until about page 23 and I saw nothing along the lines of this question, and just decided to simply ask.
I've tried working on a possible acronym. Dot of Focus? Doofus? I hope you don't mind answering the question of "what does DOF mean".

Thank you in advance.
-Ashley
12/06/2005 08:48:11 AM · #2
Depth of Field - refers to how much of your scene is in focus front to back or how much depth in your photo is focused.

Message edited by author 2005-12-06 08:50:03.
12/06/2005 08:48:59 AM · #3
Depth of field. It's how much of the scene is in focus.e.g from two feet away to six feet away etc.

Edit: Dang, beaten to it.

Message edited by author 2005-12-06 08:49:26.
12/06/2005 08:49:34 AM · #4
Oh, that was simple. Wow, I feel dumb. Thank you very much Alienyst. Mind if I ask another thing? What does it do?
Edit:
Ignore that, thank you AJ as well.

Message edited by author 2005-12-06 08:50:23.
12/06/2005 08:50:47 AM · #5
It determines how much of your scene/subject is in focus.



Using this shot as an example, I focused with a shallow depth of field to keep the bird head in clear focus but the background blurry.

This is best controlled by the size of your aperture opening. A larger aperture of f/2.8 would have a shallower DoF than the same shot taken with an aperture of say f/11. The smaller the aperture opening, the greater the DoF.

Hope this helps. My shot may not be the best example, but I thought it would be obvious.

Message edited by author 2005-12-06 08:55:26.
12/06/2005 08:51:00 AM · #6
Wikipedia has some good definitions and visuals that might help:

Depth of Field
12/06/2005 09:02:55 AM · #7
Every time I see DOF I tend to think "degrees of freedom" instead of "depth of field". I also have trouble with LSD--I think "limited slip differential", while most people assume, well, LSD.
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