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Depth Of Fly


Depth Of Fly
Photo Information
Copyright: Felipe Mateo and Cristina (extramundi) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2048 W: 351 N: 4179] (12774)
Genre: Animals
Medium: Color
Date Taken: 2005-08-29
Categories: Insects
Camera: Canon EOS 350D, Sigma 70-300 4-5.6 APO DG MACRO, Digital ISO 400
Exposure: f/13.0, 1/200 seconds
Details: (Fill) Flash: Yes
Photo Version: Original Version
Date Submitted: 2006-01-28 7:18
Viewed: 1007
Points: 26
[Note Guidelines] Photographer's Note
DEPTH OF FIELD
DOF is a precious commodity in macro work since it's in short supply.

DOF is governed by a set of rules. The first is that it is equal to the square of the subject distance. The second is that it is inversely proportional to the square of the focal length and the third is that the DOF doubles every time the aperture is made one stop smaller. So, since in macro work you're generally not using wide-angle lenses and the subject distance is very short, DOF will be down to millimeters. This makes that stop you lost to your extension tube not such a big deal since you'll want to stop down anyway.

In this case we have an aperture of F13
The focal length was 300 mm.
The distance from the subject 100 Cm. aprox.

With THIS online free DOF calculator I got the following results:

Near limit of acceptable sharpness: 99.8 cm
Far limit of acceptable sharpness: 100.2 cm

Total depth of field: 0.38 cm
Depth of field in front of subject: 0.19 cm (50%)
Depth of field behind subject: 0.19 cm (50%)

Hyperfocal distance: 37330.3 cm

Circle of confusion for selected format: 0.019 mm

I found this info HERE, where you will find a great info about macro photography.

PP: Only crop, levels, USM & frame.

Hope you like!

F13 - 1/200 - Flash - Manual program - Handheld
dew77, Dave, dsidwell, phlr, wishnugaruda, wallhalla15, thistle, Luc, gerhardt, Jannie, TAZ, Circe, fyapici, roconnell has marked this note useful
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Discussions
ThreadThread Starter Messages Updated
To wishnugaruda: Thanks for your comment.extramundi 1 01-28 16:40
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Critiques [Translate]

  • Great 
  • dew77 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 4964 W: 298 N: 4027] (13131)
  • [2006-01-28 9:05]

Hello Felipe!
Excellent close4 up.I liked POV,DOF you managed,
colors,blurred BG,framing and composition a lot.
Enjoy with your new camera and lens.TFS...:-)

Yes, I can see how narrow your depth of field here, Felipe. It works well to really give attention to the insect. Nice work!

  • Great 
  • phlr Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1276 W: 133 N: 874] (2804)
  • [2006-01-28 10:46]

WOW Felipe!
Perfect control of DOF!
Excellent on details!
Very GOOD job!
Very good POV too!
TFS!
Keep on going!

Hi Cristina and Felipe,
this post is lovely. First I had to laugh when I read the headline - very good idea ;-)
And the shot is wonderful, blurred - sharp - blurred. An excellent demonstration of DOF - even when it has an other sound here - Depth of Fly - so cool!
Thanks and have a pretty weekend, bye
Sabine - wishnugaruda

Great macro Felipe. Colorfull with very good sharpness and very good details. Very good job. WEll done. Thank you.

  • Great 
  • chiliu Gold Star Critiquer/Gold Note Writer [C: 1552 W: 0 N: 1170] (6452)
  • [2006-01-28 15:07]

Hi Felipe,
Excellent capture!
The depth of field works very well,
and the subject is sharp and detaled.
Thanks for sharing!

Very interesting shot!
Great idea for the picture and the note.
Fly is very sharp and the ring of the focus area looks great.
I like it.
VERY WELL DONE

Nice note Felipe. Some tecnical stuff. This photo shows the DOF ring very clearly. I like the effect. The dteails are sharp. Very well done.

Very well illustrated and very useful.

Great job and thanx for sharing

  • Great 
  • TAZ Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2385 W: 50 N: 3170] (10926)
  • [2006-02-02 1:41]

A interesting macro well completed with an instructive complementary note about DOF... Congratulations Felipe and thanks for sharing.

  • Great 
  • Circe Gold Star Critiquer/Silver Note Writer [C: 54 W: 4 N: 22] (86)
  • [2006-02-21 7:10]

Muy bueno el título y muy buena también la demostración de profundidad de campo, habeis utilizado una fotografía muy original y como siempre de excelente calidad.
Gracias por las interesantes notas y links que nos ayudan a comprender un poco mas la técnica y la naturaleza de las cosas.

This is a cool shot the capture the fly right in the focal zone with nothing else in focus. Great capture Felipe. :)

Hello Felipe.
Excellent. Superb! I applaud you. Congratulations.
Regards
Fevzi

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