"Volker Hetzer" wrote in message
...
Hi!
I'd like to measure the dynamic range of my digicam.
How would I go about it?
Are there special targets for this?

The T4110 is ideal for the purpose:
http://www.stouffer.net/TransPage.htm#transmission%20step

For evaluation you can either device your own tool for free, e.g. by
using ImageJ:
http://rsb.info.nih.gov/ij/
or use a much easier setup like Imatest;
http://www.imatest.com/docs/tour_q13.html
but it may be a bit expensive if you need it for more than the free
number of evaluations and only want to check DR on a single camera.

The Imatest site has a lot of useful info and links, so I suggest to
absorb as much as possible, and then choose the approach you seem fit.
Whatever avenue you choose, the T4110 is a must if you want to get
anywhere with a single exposure DR analysis.

If you want to try multiple exposure shots of a uniform
(structure+lighting) surface, or just want to absorb even more
relevant data, you can read about Roger Clark's findings:
http://www.clarkvision.com/imagedetail/digital.signal.to.noise/ .

--
Bart