Depth of Field (DoF) Calculator

crgunn · 09:46 PM

I made a Depth of Field Calculator which can help photographers to figure out how much of their picture will be in focus.

To use the calculator, select the type of camera you are using, the focal length of the lens, the aperture, and enter the subject distance. The program will recalculate as you change any parameters.

I attached a screen shot of the application.

TODO:

~~save selections on exit and reload on startup~~ added in 0.9.02
~~add a button to copy the hyperfocal distance to the subject distance~~ added in 1.0.0

Use the palm-install program from the SDK to install.

The 1.0.0 version works best with webOS 1.1

If you're still using webOS 1.0.4 then the new HyperFocal button will update the focus distance, but the value won't show up in the field until you click the field.

Also when using webOS 1.1, the focus will be returned to the distance field after tapping the hyperfocal button, so you can change the value without having to click the field.

Edit:
The 1.0.1 version has just been added to the repository.

storino03 · 07/20/2009, 11:05 PM

neat app!

Obscura · 07/21/2009, 12:29 AM

Installed and it's Nifty! Thanks. :-)

Colonel Kernel · 07/21/2009, 01:35 PM

Even though I won't be installing it, THANX. I don't know enough about my camera or use it enough to make use of it.

Riebs · 07/21/2009, 02:21 PM

Thanks! Will be using it this week end.

TheMarco · 07/21/2009, 02:58 PM

AWESOME! I'm an avid photographer and I'll definitely be using this!

jcooke426 · 07/21/2009, 03:00 PM

really cool app! thanks!

oaponte · 07/21/2009, 04:19 PM

This will go handy with my D300!!

sushi · 07/21/2009, 05:04 PM

Great! How about a second scene that does a Moon Exposure calc?

gchance · 07/21/2009, 05:35 PM

Woo, now there's an f/calc replacement for Pre!

Greg

808rides · 07/22/2009, 08:02 AM

Thanks a lot, just got into photography and this is perfect!

whitesmoke33 · 07/22/2009, 09:35 AM

this app made me jump ship and start downloading homebrew aps. thanks!

jaystory9 · 07/22/2009, 09:37 AM

My wife loves photography and she insisted I download this app...keep it up

crgunn · 07/22/2009, 11:38 AM

Quote:

Originally Posted by sushi

Great! How about a second scene that does a Moon Exposure calc?

I'll look into it. I hadn't even heard of a moon exposure calculator before.

crgunn · 07/22/2009, 11:40 AM

Quote:

Originally Posted by whitesmoke33

this app made me jump ship and start downloading homebrew aps. thanks!

I'm glad I could help you decided to jump ship. There are lots of great homebrew apps here.

sushi · 07/22/2009, 12:10 PM

Here's an example crgunn:

Moon exposure calculator | All Day I Dream About Photography

Shawalli · 07/22/2009, 03:49 PM

we should roll all these calc apps into one super app! :P

acculver · 07/24/2009, 11:28 PM

i agree

jallen3.14 · 07/25/2009, 09:18 AM

Excellent!

Thanks,
Joe

sweet greggo · 07/25/2009, 10:00 AM

Pretty cool app!

Anyway to use the light sensor on the Pre as a light meter?

rays:

07/20/2009, 11:05 PM	#2 (permalink)
storino03 Member Join Date: Feb 2008 Location: Wisconsin Posts: 552 Likes Received: 0 Thanks: 49 Thanked 53 Times in 22 Posts	neat app!
	Liked by

07/21/2009, 12:29 AM	#3 (permalink)
Obscura Member Join Date: Jan 2004 Location: Houston Posts: 148 Likes Received: 0 Thanks: 32 Thanked 11 Times in 7 Posts	Installed and it's Nifty! Thanks. :-) __________________ Obscura
	Liked by

07/21/2009, 01:35 PM	#4 (permalink)
Colonel Kernel Member Join Date: Apr 2009 Location: Boston, MA Posts: 773 Likes Received: 0 Thanks: 191 Thanked 101 Times in 58 Posts	Even though I won't be installing it, THANX. I don't know enough about my camera or use it enough to make use of it.
	Liked by

07/21/2009, 02:21 PM	#5 (permalink)
Riebs Member Join Date: Dec 2007 Location: Monkeytown Posts: 150 Likes Received: 0 Thanks: 13 Thanked 19 Times in 10 Posts	Thanks! Will be using it this week end. __________________ My Evolution Palm Pilot Palm V Clie N760C Treo 650 Centro Pre
	Liked by

07/21/2009, 02:58 PM	#6 (permalink)
TheMarco Member Join Date: Jun 2009 Location: Sunnyvale CA Posts: 699 Likes Received: 6 Thanks: 19 Thanked 160 Times in 72 Posts	AWESOME! I'm an avid photographer and I'll definitely be using this! __________________ My shiny new TouchPad apps: Scientific RPN Calculator HD - Screamager HD
	Liked by

07/21/2009, 03:00 PM	#7 (permalink)
jcooke426 Member Join Date: Jun 2009 Posts: 20 Likes Received: 0 Thanks: 2 Thanked 0 Times in 0 Posts	really cool app! thanks!
	Liked by

07/21/2009, 04:19 PM	#8 (permalink)
oaponte Member Join Date: Jul 2009 Posts: 22 Likes Received: 0 Thanks: 3 Thanked 1 Time in 1 Post	This will go handy with my D300!!
	Liked by

07/21/2009, 05:04 PM	#9 (permalink)
sushi Member Join Date: Jul 2009 Posts: 159 Likes Received: 0 Thanks: 15 Thanked 15 Times in 10 Posts	Great! How about a second scene that does a Moon Exposure calc?
	Liked by

07/21/2009, 05:35 PM	#10 (permalink)
gchance Member Join Date: Jun 2009 Posts: 19 Likes Received: 0 Thanks: 0 Thanked 2 Times in 2 Posts	Woo, now there's an f/calc replacement for Pre! Greg
	Liked by

07/22/2009, 08:02 AM	#11 (permalink)
808rides Member Join Date: Jun 2009 Posts: 22 Likes Received: 0 Thanks: 6 Thanked 5 Times in 3 Posts	Thanks a lot, just got into photography and this is perfect!
	Liked by

07/22/2009, 09:35 AM	#12 (permalink)
whitesmoke33 Member Join Date: Jun 2009 Posts: 66 Likes Received: 0 Thanks: 4 Thanked 24 Times in 9 Posts	this app made me jump ship and start downloading homebrew aps. thanks!
	Liked by

07/22/2009, 09:37 AM	#13 (permalink)
jaystory9 Member Join Date: Jun 2009 Posts: 17 Likes Received: 0 Thanks: 2 Thanked 0 Times in 0 Posts	My wife loves photography and she insisted I download this app...keep it up
	Liked by

07/22/2009, 12:10 PM	#16 (permalink)
sushi Member Join Date: Jul 2009 Posts: 159 Likes Received: 0 Thanks: 15 Thanked 15 Times in 10 Posts	Here's an example crgunn: Moon exposure calculator \| All Day I Dream About Photography
	Liked by

07/22/2009, 03:49 PM	#17 (permalink)
Shawalli Homebrew Developer Join Date: Jul 2009 Posts: 85 Likes Received: 0 Thanks: 8 Thanked 12 Times in 7 Posts	we should roll all these calc apps into one super app! :P
	Liked by

07/24/2009, 11:28 PM	#18 (permalink)
acculver Member Join Date: May 2009 Posts: 64 Likes Received: 0 Thanks: 54 Thanked 3 Times in 3 Posts	i agree
	Liked by

07/25/2009, 09:18 AM	#19 (permalink)
jallen3.14 Member Join Date: Jun 2009 Posts: 48 Likes Received: 0 Thanks: 13 Thanked 26 Times in 8 Posts	Excellent! Thanks, Joe
	Liked by

07/25/2009, 10:00 AM	#20 (permalink)
sweet greggo Member Join Date: Jun 2009 Posts: 118 Likes Received: 6 Thanks: 10 Thanked 11 Times in 9 Posts	Pretty cool app! Anyway to use the light sensor on the Pre as a light meter? rays:
	Liked by

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