There is no simple test, configuration or figure of merit to quantify the performance of a camera's AF system. There are to many variables to arrive at a simple set of numbers, let alone a single one. There are reasons why most test reports are of static tests, with a normal lens and only the light level is changed. They give no indication for how the AF works under different conditions, with different lenses, with different subjects. People who have used different systems, for extended periods of time, with various lenses/subjects/lighting have a better idea of what works well and what doesn't.
>You cannot really compare focus speed in this way anyway. What you are comparing is often the gearing of the lens focusing systems. >Manufacturers may use different priorities on different lenses. I believe that comparing the speed on something like a 50/1.4, since most >of them are of very similar constructions, has the potential of giving the most meaningful datas to judge the cameras real relative focus >speed. P�l - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
