BetterPhoto Q&A
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Stephen

DOF Chart

Ok, Can anyone find me a good easy to use DOF chart that is in feet and inches instead of the annoying meters. I use a 28-80mm lens, and 100-300mm.

THANKS

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0 May 26, 2001

John A. Lind


	DOF chart for 35mm focal length lens Distances are in feet; circle of confusion is 0.025mm (applicable to 35mm film format) John A. Lind

Stephen,
DOF is dependent on focus distance, aperture and focal length. With a zoom lens, it's not really possible to create a single chart. However, I am uploading four for 28mm, 35mm, 50mm, and 80mm focal lengths. The aperture is shown on the left. Focus distance is shown across the top. For the aperture and focus distance the "near" and "far" are the boundaries of the DOF. All distances are in feet. The circle of confusion used to create them is 0.025mm, making them applicable to 35mm film format.

-- John

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0 May 26, 2001

John Davis

Stephen,
Try the little program at this address:
http://puma2.cyberport.com/~tangent/photo/fcalc/

It's called f/calc-about 240K in size; covers all the basic photographers calculations. Extensive help file shows all the equations.
JFD

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0 June 01, 2001

Roland Towey

Hi,I tried to print off d.o.f. charts,but they print only half of chart.Is it possible to display charts in portraite so when printed all of chart is visible? Or is there an adjustment I can do to my printer to print as charts are?
Regards Roland.

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0 June 01, 2001