On Sep 13, 2012, at 2:00 PM, P. J. Alling wrote: >> >> >> Is my lens tweaked, or am I just looking too closely at the pixels? >> >> >> http://www.fluidr.com/photos/ellarsee/sets/72157631529224954/ >> >> >> -- >> Larry Colen [email protected] sent from i4est >> > I don't know, if I'm not looking at the original resolution I'm not sure what > to tell you. However it does seem to be softer, less focused on the right > side of the frame, in this image. > http://www.fluidr.com/photos/ellarsee/7983529238/ My FA 28-200 showed > similar softness on the left side of the frame after being banged around a > lot as my carry lens. I think it's s symptom of optical decentering because > a group got knocked a bit out of alignment.
All the ones after 1790 are tight crops, the others are the full image. I suspect that it is out of alignment, I wonder what it would cost to repair? An actual real test with a real focus chart is probably the proper test. Probably using a flash to minimize blur from any camera motion. -- Larry Colen [email protected] sent from i4est -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
