Online Depth Of Field Calculator

code4code5 · 07-28-2009, 09:46 PM

Originally posted by Duck Dodgers

I just noticed the iphone screenshot. WTH? Focus point in the example is 5ft 26in? Isn't that the same as 7ft 2in? Or 86 inches? What kind of weird, illogical, un-intuitive interface is that?

LOL! I hadn't noticed that. Perhaps some people find it easier to think in terms of 36" rather than 3'. At least that's the only explination I can think of. Thanks for pointing that out!

KjetilH · 07-31-2009, 04:49 AM

I've got a Java app on my Nokia phone (6288, S40v3) that calculates DoF. Works for all cameras, if you know the 'crop factor'. I'll try to check where I got it from, if I forget or you are interested, feel free to remind me via PM.

Opahujo · 12-06-2009, 10:12 AM

About the "Depth of Field Calculator"; this is probably a dumb question but when using the calculator for a 15-55 kit lens, how do I figure out what number to use for the focal lenght?

Pentaxoid · 12-07-2009, 10:09 AM

15 and 55. Remember on APS-C The focal length is not changed there is only a cropping that happens in the image.

Opahujo · 12-07-2009, 12:41 PM

I appreciate your reply. Thank you.
I have a Pentax SMC-M MACRO 1:4 50mm lens and a 1:2.8 28mm lens I bought on e-Bay in the mail to me. So, there is no problem with determining the focal lenght for those lenses. I also have a Canon S3IS with a 6-72mm 1:2.7-3.5 lens. The camera is listed in the table in the "Depth of Field Calculator." Is 75 the number I should use for that lens? (I hope it's OK to ask a question about a Canon camera in this Pentax forum.)

maxmagnum · 12-29-2009, 04:33 PM

There is a downloadable DOF calculator for Win:
Hyperfocal Distance and Depth of Field Calculator - DOFMaster

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07-28-2009, 09:46 PM	#16
code4code5 Veteran Member Join Date: Oct 2007 Location: Denver, CO Photos: Gallery Posts: 438	Originally posted by Duck Dodgers I just noticed the iphone screenshot. WTH? Focus point in the example is 5ft 26in? Isn't that the same as 7ft 2in? Or 86 inches? What kind of weird, illogical, un-intuitive interface is that? LOL! I hadn't noticed that. Perhaps some people find it easier to think in terms of 36" rather than 3'. At least that's the only explination I can think of. Thanks for pointing that out!

07-31-2009, 04:49 AM	#17
KjetilH Veteran Member Join Date: Mar 2008 Location: Oslo Photos: Gallery Posts: 309	I've got a Java app on my Nokia phone (6288, S40v3) that calculates DoF. Works for all cameras, if you know the 'crop factor'. I'll try to check where I got it from, if I forget or you are interested, feel free to remind me via PM.

12-06-2009, 10:12 AM	#18
Opahujo Junior Member Join Date: Nov 2009 Posts: 26	About the "Depth of Field Calculator"; this is probably a dumb question but when using the calculator for a 15-55 kit lens, how do I figure out what number to use for the focal lenght?

12-07-2009, 10:09 AM	#19
Pentaxoid Junior Member Join Date: Nov 2009 Posts: 48	15 and 55. Remember on APS-C The focal length is not changed there is only a cropping that happens in the image.

12-07-2009, 12:41 PM	#20
Opahujo Junior Member Join Date: Nov 2009 Posts: 26	I appreciate your reply. Thank you. I have a Pentax SMC-M MACRO 1:4 50mm lens and a 1:2.8 28mm lens I bought on e-Bay in the mail to me. So, there is no problem with determining the focal lenght for those lenses. I also have a Canon S3IS with a 6-72mm 1:2.7-3.5 lens. The camera is listed in the table in the "Depth of Field Calculator." Is 75 the number I should use for that lens? (I hope it's OK to ask a question about a Canon camera in this Pentax forum.)

12-29-2009, 04:33 PM	#21
maxmagnum Junior Member Join Date: Dec 2009 Location: West of West Posts: 47	There is a downloadable DOF calculator for Win: Hyperfocal Distance and Depth of Field Calculator - DOFMaster