BetterPhoto Q&A
Category: How to Use Camera Lenses and Focus

Photography Question 

Pat Wimpee
 

Focusing: How to Do It and Get It Right


I took pictures of my daughter and her friend yesterday in the park. For some reason, every picture threw one of them out of focus (or sometimes both of them). It would focus on the tree or the leaves. I used shutter priority and the spot focusing was on all points. Can anyone help me with what I'm doing wrong? Should I be using a higher aperture?


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October 14, 2005

 

Jon Close
  The camera's autofocus sensor selector has no intelligence and cannot distinguish between your intended subject and some high-contrast distraction (like a branch) that is closer. To be sure of focusing on your intended subject, manually select and use the autofocus sensor closest to the subject, or simply focus manually.
The exposure program you selected may not necessarily choose a lens aperture small enough to give you enough depth of field to render 2 or more subjects in focus. Use DEP mode (if using Canon EOS) or select a smaller aperture in aperture priority mode.


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October 14, 2005

 

Pat Wimpee
  Thanks for your answer, Jon. I'll try the DEP mode tomorrow. I haven't used that before. I try to stay away from manual focus because my eyesight isn't what it used to be:)


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October 14, 2005

 

BetterPhoto Member
  Don't be scared by the manual focus. I have astigmatism and I will focus with my eyeglasses on and then remove them and compose the frame without them so my eye is closer and I can then see the whole frame. For focusing, you might try zeroing in. Focus your subject and go past until it gets a little fuzzy, then focus back, and back and forth, until you've got it dead on, imaging a pendulum swing back and forth. Focus like this, narrowing your focus swing until you have the crispness of image that you desire.

Walrath Photographic imaging
http://home.comcast.net/~flash19901/wsb/html/view.cgi-home.html-.html


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October 15, 2005

 
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