Archived posting to the Leica Users Group, 2001/02/11
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Edmund's Scientific sells a convenient target that does just this and is calibrated in line pairs per mm. It's a bit on the expensive side (compared to a newspaper), but if it would end this thread, it is definitely worth it... http://www.edmundoptics.com/IOD/DisplayProduct.cfm?productid=1485 Bernard > I cheated a bit and taped a page of newsprint just below the 6" mark on the > ruler (my point of focus) such that the page was parallel to the film plane > while the ruler was at an angle. That way I could check both the in-focus > range along the ruler, the flat surface of the newsprint, and also measure > from the page to the film plane to determine actual focus distance. > > Like so: > > (ruler) > / > /---- (page of printed material) > / >