Archived posting to the Leica Users Group, 1998/09/29[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
There are several steps. First, measure the height in millimeters of your paper easel. Unlock the column and crank it up to that height using the scale on the front of the column. (If your easel is 25mm thick, then set it at 25mm!). Relock the column. Next, insert a negative and douse the house lights. Turn on the enlarger. Open the lens to its maximum aperture, f/2.8 for the 40mm Focotar. Turn the lens tube to focus the image on the easel. There is a detent in the focusing ring on the lens tube. This should have that screw set into it, but you'll probably be out of the detent by the time the image on the easel is in focus. Figure out how far off you are. Loosen the next ring above the lens tube, and then you can turn the lens tube so that the screw slides back into the detent. Tighten that ring. Please note that, with all of this twaddling about, the aperture scale is now shifted to one side or the other. Finally, loosen the topmost ring and rotate the entire lens tube assembly to bring the aperture scale front and center, where it belongs. When you switch from one emulsion to another, especially when going from today's thin-base b&w films to some of the thicker colour emulsions, you might have to adjust the focus a bit. It takes but a second once you've done it a few times. Marc email@example.com FAX: +540/343-7315 Cha robh bas fir gun ghras fir!