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Depth of Field Calculator & Hyperfocal Distance Calculator
Achieve high fidelity photography with automatic formulae calculation.
Everything, but everything, including depth of field, hyperfocal distance,
angle of view and other optical calculations for the amateur or professional.
Whether you use a Palm, Pocket PC, Windows or Mac, we've a solution for you
- and they all run in French, Italian, German and Spanish. No wonder the
Douglas Photo Calculator is fast becoming the industry standard.
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Depth of Field Calculator
Depth of field is the distance between the nearest and furthest parts of the subject
that are all in acceptable focus at the same time and its control is a vital tool for
photographers..
There are a number of criteria that affect depth of field but the circle of confusion
is probably the most misunderstood. No need to worry about the circle of confusion any
more - just select the resolution you want from a list and, hey presto, the software
works it out for you!
Hyperfocal Distance Calculator
The Hyperfocal distance is the distance from the lens to the nearest part of the subject
that is in acceptable focus when the lens is focused upon infinity. The Douglas Photo
Calculator will calculate your correct Hyperfocal distance with just a few clicks.
Angle of View Calculator
In still photography this is defined as "the angle subtended at the lens by the diagonal
of the film format."
The focal length of a lens also determines the angle of view of the lens as used in
conjunction with a given film format size.
This helps find equivalent lenses when comparing film formats.
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The Douglas Depth of Field and Hyperfocal Distance Calculator is available for a range of platforms including
Palm 5.1+, Pocket PC 3/4, Windows Mobile 5/6, Windows 95, 98, ME and XP and Apple Macintosh OSX 10.2+.
To see screen shots for each of these operating systems please see here.
The Douglas Depth of Field and Hyperfocal Distance Calculator contains data for many different brands of camera.
For a full list of all the models supported click here.
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Download and Try the Douglas Depth of Field and Hyperfocal Distance Calculator
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This download (409KB) is a demo version for Palm 5.1+ where the aperture is fixed at f8.
To install the Douglas Depth of Field and Hyperfocal Distance Calculator on your Palm download cam_palm.zip from the Download link below
to your desktop and extract the file camera.prc. Then double click on camera.prc which allows
Quick Install to install the software on your Palm. To unlock the full version of the Douglas Depth of Field and Hyperfocal Distance Calculator after you have
installed the trial version, get the user name that appears in the "User" window, then go to
our online shop and select the "Unlock Palm 5.1+ Now"
link. You will then be asked for the user name and will receive a 6 digit serial code via email.
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This download (75KB) is a demo version for Pocket PC 2002/3 and Windows Mobile 5/6 where the aperture is fixed at f8.
To the Douglas Depth of Field and Hyperfocal Distance Calculator on your Pocket PC device download cam_ppc.zip from the Download link below on to your desktop.
The file contains one installation file, Setup.exe, which will work for Pocket PC 2002/3 and Windows Mobile 5/6.
Extract the file and then double click on it to install the software to your handheld with the help of
ActiveSync. If your handheld is not connected at the time ActiveSync will, or should, save it for installation at a later date.
Click here for information regarding Pocket PC installation issues. To unlock the full version of the Douglas Depth of Field and Hyperfocal Distance Calculator after you have installed the trial
version get the user name from the "User" window, then go to our online shop and select the "Unlock Pocket PC 2002/3 or
Windows Mobile 5/6 Now" link. You will then be asked for the user name and will receive a 6 digit serial code via email.
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This download (2.05MB) is a demo version for Mac OSX 10.2+ where the aperture is fixed at f8.
To install the Douglas Depth of Field and Hyperfocal Distance Calculator on your Mac download cam_mac.zip from the Download link below, double-click
it and drag the resulting cam_mac folder to your applications folder. To unlock the full version of the Douglas Depth of Field and Hyperfocal Distance Calculator after you
have installed the trial version get the 8 digit serial number from the "Serial No" window, then go to our
online shop and select the "Unlock Apple Macintosh OSX 10.2+
Now" link. You will then be asked to enter the 8 digit serial number and will receive a 6 digit serial code via email.
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This download (3.30MB) is a demo version for Windows 95, 98, ME, XP, Vista or Windows 7 where the aperture is fixed at f8.
To install the Douglas Depth of Field and Hyperfocal Distance Calculator on your PC download cam_win.zip from the Download link below on to your desktop. The file Setup.exe
should be extracted and then run to install the software. To unlock the full version of the Douglas Depth of Field and Hyperfocal Distance Calculator after you have installed the trial version get
the 8 digit serial number from the "Serial No" window, then go to our online shop and select the "Unlock Windows 95, 98, ME, XP,
Vista or Windows 7 Now" link. You will then be asked to enter the 8 digit serial number and will receive a 6 digit serial code via email.
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Buy and Unlock the Douglas Depth of Field and Hyperfocal Distance Calculator
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You have downloaded the Douglas Depth of Field and Hyperfocal Distance Calculator for Palm 5.1+ and
you want to unlock its full features. You have got the user name from the "User" window in the program.
OK. You are ready to purchase an "unlock key". Go ahead and click the "Unlock Palm 5.1+ Now" link below,
enter the user name that you obtained from the "User" window, your contact and payment details and click
the "Place Secure Order" button. You will then receive an unlock code via email. You should enter this 6
digit number in the "Key" window and click on "Register" to complete this process. Thanks for buying our software.
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You have downloaded the Douglas Depth of Field and Hyperfocal Distance Calculator for Pocket PC 2002/3 or
Windows Mobile 5/6 and you want to unlock its full features. You have got your user name from the "User"
window in the program. OK. You are ready to purchase an "unlock key". Go ahead and click the "Unlock Pocket
PC 2002/3 and Windows Mobile 5/6 Now" link below, enter the user name that you obtained from the "User"
window, your contact and payment details and click the "Place Secure Order" button. You will then receive an
unlock code via email. You should enter this 6 digit number in the "Key" window and click on "Register" to
complete this process. Thanks for buying our software.
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You have downloaded the Douglas Depth of Field and Hyperfocal Distance Calculator for Mac OSX 10.2+ and
you want to unlock its full features. You have got your 8 digit serial code from the "Serial No" window in the
program. OK. You are ready to purchase an "unlock key". Go ahead and click the "Unlock Mac OSX 10.2+ Now"
link below, enter your 8 digit serial number that you obtained from the "Serial No" window, enter your contact
and payment details and click the "Place Secure Order" button. You will then receive an unlock code via email.
You should enter this 6 digit number in the "Key" window and click on "Register" to complete this process.
Thanks for buying our software.
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You have downloaded the Douglas Depth of Field and Hyperfocal Distance Calculator for Windows 95, 98, ME, XP, Vista
and Windows 7 and you want to unlock its full features. You have got your 8 digit serial code from the "Serial No" window
in the program. OK. You are ready to purchase an "unlock key". Go ahead and click the "Unlock Windows 95, 98, ME or XP Now"
link below, enter your 8 digit serial number that you obtained from the "Serial No" window, enter your contact and payment details
and click the "Place Secure Order" button. You will then receive an unlock code via email. You should enter this 6 digit number in the "Key"
window and click on "Register" to complete this process. Thanks for buying our software.
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