http://www.adorama.com/DKPPS.html
You focus, and then expose for 60s with this thing on top of the paper. Develop and you can see what the best exp would be.
You can even use it for split printing, by esposing first for filter 0, then exposing the paper the required time in filter 0 and then using the scale again with filter 5.
Other method is to use something like the Ilford EM-10. http://www.firstcall-photographic.co.uk/pp/Darkroom_Equipment/Processing_Aids_For_B_And_W/Ilford_EM10_Exposure_Monitor_Enlarging_Meter.html
If you are interested I have a curve to calculate exposure and contrast grade for a straight print.
Cheers
At 05:55 AM 3/10/05, you wrote:
this one is based on an earlier reply to a Q of mine regarding B&W printing (see attached message) So the new Q is something like this:
Is there a device that saves you from test printing? like somekind of density filters placed over your paper that let you estimated the density of the covered area and the needed change in the printing time. i just wonder... thansk beforehand, kostas
--- In photoforum@xxxxxxxxxxxxxxx, "R. S. Davidson" <rsdwla@xxxx> wrote: > Reference your #1 ... 18% Gray Card > > Not worth the time and effort to try to make your own. Kodak > sells them at a reasonable cost. > http://www.kodak.com/US/en/motion/products/tools/card.shtml > > While you are at it ... get a Kodak Q-13 Gray Scale and > Color Separation Guide ... they only cost something like > $10, and can save you a whole bunch of time and effort. >
Pablo Coronel Ph.D. Candidate Food Science Department North Carolina State University Room 39 Schaub Hall, Box 7624 Raleigh, NC, 27695
Phone (919) 515-4410 Fax (919) 515-7124 e-Fax (419) 818-7590 e-mail pcorone@xxxxxxxxxxxxxx http://www4.ncsu.edu/~pcorone
