5d images not pin sharp?
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02-10-11, 05:14 PM
Join Date: Jul 2009
Try shooting at f/8. F/8 through to F/11. These are the sweetspot apertures for f/4 lenses. Shooting any lens wide open will give you problems with narrow depth of field thus making the focus point extremely vulnerable to the slightest movement, throwing the focus point out. Shooting at apertures beyond f/11 will bring diffraction into play. Take care on processing too as the full frame sensor will show up all the problems of cheaper lenses. You need to consider L series lenses to get the best out of your 5d if you are not already using them.
Your 2.8 lens will be best set at f/5.6 to f/8.
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Last edited by KeithT; 02-10-11 at
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