View Single Post
Old May 13, 2009, 5:17 PM   #7
TCav
Senior Member
 
TCav's Avatar
 
Join Date: Sep 2005
Location: Washington, DC, Metro Area, Maryland
Posts: 13,572
Default

Quote:
Originally Posted by FaithfulPastor View Post
Help me out.. what is chromatic aberration?
I used a sigma 70-200 2.8 lens.
Chromatic aberration is when all the colors of light don't focus in the same place. It appears as color fringes on edges in areas of an image where there is high contrast. [See http://en.wikipedia.org/wiki/Chromatic_aberration ]

If you look closely at the white pole in the background of #3 & #4, you'll see a purple fringe on the left side and a green fringe on the right. There's also some CA around the white lawnchair, but it's not as noticeable.

Quote:
Originally Posted by FaithfulPastor View Post
I also think that maybe my AF was set to center point focus on all these shots. So if the center focus point was behind the ladies... duh.
If that were true, then the things behind the ladies would be in focus. They're not.
TCav is offline   Reply With Quote