Very, very nicely done! I much appreciate all of the effort that you have expended on our behalf. As I examine the parameters that you record, and the data that you acquire and use, I am motivated to tell you that you might not be aware that the ExpoDev program ( of the late and much lamented Phil Davis ) has much of the information built into the program. ExpodDev can be easily used on a Handspring PDA ( which are incredibly inexpensive now on Ebay ) in the field. Once one supplies the EV readings, the program will automatically provide the exposure information which has been automatically adjusted for the bellows factor, filter factor, and reciprocity. The information is then saved on your computer to be printed out as needed. Of course, one needs to do one film test to define your materials, and from then on the program supplies everything that one needs. There is even a built in timer for long exposures. One can contact Fred Newman at The View Camera Store for more information. Disclaimer: I have no financial interest of any kind in ExpoDev or any product that the VCS sells or provides! However, I have been using the ExpoDev program for a few years now. Please believe me when I tell you that if you want to concentrate on the artistic aspects, and not be "bogged down" with some of the technical aspects, that one should inform oneself about the ExpoDev program.
I noted your reference to some of the BTZS terminology, and if you are already familiar with ExpoDev then I apologize!
Last edited by Mahler_one; 06-23-2011 at 08:12 PM. Click to view previous post history.
Reason: I added some links fo the convenience of others!