Focus On Both Eyes

milster

milster

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Gary
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I'm probably missing something really basic here but, I'm trying to get some portrait shots of the kids, I'm using about 2.8 but if I have them slightly angled from be I can get one eye in perfect focus but the other eye is a bit soft. Is there a way of getting both in focus? Should I focus between the eyes?

I don't really want to change the aperture too much as I trying to shoot indoors in available light.

Thanks for any tips.

p.s. I've been focusing on the eye nearest me. :)
 
Sounds like your depth of field is too shallow. The only thing you can do apart from recomposing the shot is to narrow the aperture.
 
Focusing between the eyes will make the nose sharp and the eyes soft so not ideal, you really need to increase the depth of field to get both eyes in focus - change the aperture setting (f4/5.6) and try that - if the light is a problem, try upping the ISO or moving the kids nearer a window to gain more light.
 
The focus point can only be at a certain distance from any camera, anything not at that precise distance is going to be out of focus to a greater or lesser degree. Stopping down increases the apparent focus outside that point, such that we perceive it as being in focus. If your subject covers a greater distance between the important points than the apparent 'in focus' range can cover it can only be extended by stopping down. The 'in focus' range diminishes the closer you get to the subject and also the longer the focal length of the lens. Using a wide angle lens makes life easier at wide apertures.
 
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