Exposure calculators

The are several on-line exposure and DOF calculators.

With the $20 scientific calculators on the market, I find it inconceivable that we don't have a similar one or am I mistaken?

For exposure calculation, I can't think of anything I would need beyond a good light meter and possibly a pad of paper for a little common arithmetic (for ratio settings of multiple studio lights). I doubt that anybody would find enough of a market to produce a specialized calculator.

What you could do would be to use a PDA such as a PocketPC unit with a version of Excel in it and write a spreadsheet to do whatever fancy functions you might think of.

While fancy depth of field calculators like the web-based ones we often refer newbies to are handy for teaching, I never once have found a real need for calculating depth of field when actually making photographs. The depth of field preview buttons on my various cameras do everything I have ever needed towards that end.

Chauncey, give me a day or so. I've been working on some basic stuff. If nobody already has them I will post. Probably Tuesday.

Thanks Eric, that pencil and paper thing doesn't cut it with this old mind.

There are several DOF and exposure programs for PDAs. Here are some free ones:
http://dl-c.com/content/view/42/​64/

has anyone seen any for a computer ie a laptop?

Here's another one, including a version for handhelds and Windows and an online version:

http://www.dofmaster.c​om/dofjs.html

Here is a basic DOF chart. All information was taken from Depth of Field Master. Use the chart with the closest distance to your subject. Line up the focal length on the left with the aperture on top. The distance in the chart is the near/far limit and is in feet.

Converting this to pdf caused some of the formating to go stupid. If you want the word document just email or pm me.

In the link above your post.

If you have a mac... you can download a free DOF calculater widget. It is awesome.

Exposure calculator? What would it be needed for exactly?

DOF calculators could be useful, but this is my exposure calculator for most situations:
Need an exposure crutch?

I didn't see where he included subjects like meteor trails or propeller blur, but we have people here who can answer those special applications.