I thought about the focal plane of focus, and tried shooting with more and less DOF to see what resulted. Also used faster/slower shutter speeds. Didn't think about trying the matrix metering. However, that doesn't work on all lenses, iirc. Only the auto focus lenses, right? What about regular A lenses .... the M and K and other manual lenses can't use that at all.
Shel "You meet the nicest people with a Pentax" > [Original Message] > From: Doug Franklin > > [...] wondering if a car could be caught with [trap focus]. It > > seems that it can. > > It surely can. I've used a number of lenses that way with my ZX-5 and > MZ-S. I haven't tried it with the *ist D yet. The thing to beware of > is that the point of focus often isn't what you want it to be due, I > think, to the "lock time" (the time between the camera realizing > something has come into focus and the actual tripping of the shutter). > Often, I find that the main plane of focus will be a little "behind" > where the car came into focus, measured in the direction of the car's > travel. With the MZ-S and *ist D there are enough focal points in the > AF system that you should be able to select one that will get the > actual plane of focus about where you want it. > > TTYL, DougF KG4LMZ >
