I recently shot some family pictures for a friend's family event (thank god I didn't get paid for this job). The location was problematic with the light - very strong late afternoon light and I don't have a good setup with flash to fill in the shadows.
My main frustration looking at my photos was the focus, which seemed very off. I have had very good luck with the sharpness using this lens, but the vast majority of the pictures this time were really off, except for one.
Because of the difficult light I shot using manual exposure (shutter and aperture) but used auto focus. because of the relatively busy background, I used f4 to get a relatively short DOF. Some of the times not all of the faces where on the same plane so some of the faces were in focus.
By far the best picture was
WHich is what I am used to. This was an F4 1/3000 focal length of 50mm
A picture from 12 seconds earlier is: (same settings exactly):
In both cases, I focussed on the mothers face and then repositioned.
Another example is: Where the fence is nicely focussed, but there is no way I remotely focussed on that.
Again, just to prove that I can take good pictures using these F stops and lighting conditions:
In all these example low lighting isn't an issue. I was also using a very high speed, so shake shouldn't be an issue.
Any help is welcome.