Archived posting to the Leica Users Group, 1998/04/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]<< An open question regarding M's and lenses with good flatness of field--suppose I'm shooting wide-open with a wide angle lens and my subject is, say, a person who's pretty close, and I want the eyes to be sharp. I focus on the person's eyes in the center of the finder, but that's not what I want in composition, so I move that person close to the edge of the frame. Technically, it seems to me that if the field-plane is truly flat, that will back-focus the eyes of the person when I change the composition. >> If the distance from the lens to the person's eyes remains the same, the person's eyes should remain in focus if you are using a flat field lens (a lens with little or no curvature of field). Tom Shea