Photographers don't realize that hand holding a camera (even if it or the lens has image stabilization), isn't the way to get the maximum possible sharpness.
If the shutter speed is high enough and your hands are steady enough, you may get a critically sharp image, but don't bet on it happening every time. So you have the camera on a tripod, what's next. Well, you have to be sure that the lens is focusing properly. To do that you have to do some focus testing as I described in the article HERE. If you want to go all the way, I'd recommend you look at the Assuming you have a camera and lens in good calibration and you are getting an accurate indication of focus by the AF system, then what?Īt this point you have to decide just how much effort you want to put into measuring the optical characteristics of your lens. It's currently (2013) $299 for the "lite" version and $2200 for the pro version (though a limited free trial edition is available).
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