Aperture setting should have no variable in the photo being blurred, a wide open aperture takes in more light, so if anything it should be less blurry since you need a slower shutter speed. Rule of thumb is.. Whatever the mm you're shooting at should be your minimum shutter speed. So if you're shooting at 50mm your minimum shutter speed for a non blurry photo should be AT LEAST 1/50 and so on.(I usually end up doubling if I can)
In those photos I was using a center focusing point, when you're shooting at a higher F stop the sharpness starts at the middle and progressively gets sharper towards the edges as the f stop increases, so really the whole picture should be sharp with the center shot being the sharpest.
Placement in the photo I'd also would say has to do with your general composition that you're looking for the photo overall. Rule of thirds, etc.
Do you own an external flash for your camera?
Last edited by Nick911sc; 08-02-2011 at 10:52 AM.
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