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Warmth


Warmth
Photo Information
Copyright: Vishal Sabharwal (shal) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 174 W: 46 N: 163] (1302)
Genre: Places
Medium: Color
Date Taken: 2006-03-11
Categories: Experimental, Mood
Camera: Nikon D70s, Nikkor 70-300mm f/4-5.6D ED AF, UV Filter
Exposure: f/5.0, 1/640 seconds
More Photo Info: [view]
Photo Version: Original Version
Theme(s): Hands, reflection of a beautiful mind [view contributor(s)]
Date Submitted: 2006-03-12 15:21
Viewed: 482
Points: 14
[Note Guidelines] Photographer's Note
Example of extreame DOF,
To be technically correct, DOF is the zone of acceptable sharpness, the area in front of, and behind, a focused subject that appears in focus.

Circle of Confusion (COC / COF)
Technically, only the subject in focus -- and all other objects at the same distance -- are in focus; everything else in front and behind are out of focus. How much out of focus depends on a term called the "Circle of Confusion (COF, or COC)."

What Affects DOF
What we really want to know as photographers is what affects DOF so we can control DOF in our pictures. For a long, long time, photographers have gone with the following three criteria:
• lens aperture
• distance from subject
• focal length

Since the focus is on the hands, the Sun looks bigger as the same effects.
A-4.5 at 300mm EV -0.7

Even though the subject you focus on is the only thing technically in focus, some objects in front and behind your focused subject also appear to our eyes to be acceptably in focus (thanks to the COF). This zone of acceptable sharpness is the DOF.
We can increase the DOF (or the appearance of it) by using a small aperture, moving away from our subject, or using a wide-angle lens.
We can decrease the DOF (or the appearance of it) by using a large aperture, moving closer to our subject, or using a long focal length.


Cheers,
Vishal Sabharwal
ozoz3000, ScottHale has marked this note useful
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ThreadThread Starter Messages Updated
To mrcrow: Thanks for the articleshal 2 03-13 03:26
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Critiques [Translate]

What Affects DOF??

you forgot to mention circles of confusion

the sun looks bigger because it is not in the depth of field...so it becomes confused..:)

http://www.cs.mtu.edu/~shene/DigiCam/User-Guide/950/depth-of-field.html

Nice colour!
Nice shot!

Belarus
Alexander(Alfonso)

aint it too hot ?!
:))

  •      
  • albyro Gold Star Critiquer/Silver Note Writer [C: 485 W: 0 N: 24] (2483)
  • [2006-03-12 16:10]

Hi Vishal, good idea. Well done.

  • Great 
  • nova Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2819 W: 267 N: 842] (8311)
  • [2006-03-12 17:45]

Great shot,Vishal! Creativer and artistic! Bravo! Michel

Classic exercice to learn or illustrate that fact! I remeber seeing a couple of exemple in book or magasine! I like this one! Colorfull! Great curved presentation art!

OOP for now!

  • Great 
  • wck Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 828 W: 37 N: 443] (3833)
  • [2006-03-24 1:52]

Wonderful shot, Hand holding the sun perfectly warm up the dark... Good content!

Wong

beautiful composition! great colors. and thanks for the explanation. great lesson on DOF :)

ozgur

Vishal,
I like this example. It gives the viewer something to think about.
I like the OOF sun and the silhouetted hands.
Good pose. Nice orange gradient.
Superb work.
Scott

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