Archived posting to the Leica Users Group, 2003/12/28
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Lee wrote: > > Hi, > > One interesting thing occurred to me is the "reversed" > thinking of DoF. Instead of a set of parameters like > a given lens, aperture and distance (and then to > figure out the DoF), it seems to me that DoF and the > "size" of image commands the aperture to use for a > given lens. Probably portraits are the most popular > and sensitive case for DoF usage. In this case, for > regular adult portraits of head and shoulder shots, we > typically want to have a DoF about 4" for facial > contour before taking a picture. Therefore, you may ><Snip> 4"? I recall an ideal being you need to get from the tip of the nose to the back of the ear. I think that's more like 6 or 8 inches which is a lot to try to get in shot with a higher magnification. Neck up. Or even "head an shoulders". It all gets so much easier if we just pull back more and shoot them from the waist up or knees up for that matter. Then we don't get criticized for how sharp our lenses are. Just remember that tune "Far Far Away" :) Mark Rabiner Portland, Oregon USA http://www.rabinergroup.com/Catagorypages/PersonalWork.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html