If there is sufficient light, I usually stop down to somewhere between f2.8 and f5.6 with the 85mm lenses. Wide open the depth of field often is simply too shallow. Also there is light fall-off at open aperture, and some lack of contrast - which on the other hand is nice with kids and especially girls....You can get a nicely blurred backround at f4, too, if you choose a better background than I chose for those 85mm lens comparison test at http://www.arnoldstark.de/pentax.htm or rather http://www.physnet.uni-hamburg.de/hp/stark/pentax85/Portrait/portrait.htm
Arnold
Levente -Levi- Littvay schrieb:
Hmmm. How far do you stop down for portraits? I personally don't like much DOF, and
I don't use a flash so sometimes (if the conditions don't allow me to better) I need
to keep it open... The 1.8 (or 1.4, but there is no way I can get my hand on one, and
the price...) might be better for me afterall?
