Pentax doesn't focus fast enough for a dog playing Frisbee
So the only way to catch that would be to focus on a spot and have someone throw the Frisbee to it
ok
The KX has a few features you can use for focus. There's an AF button on the upper right side on the back and the shutter button performs the same function.
In the menu, select the center focus point (it comes up on the LCD) and then lets say you want to focus on a person's eye's. The center cicle in the viewfinder is where this focus point is, right in the middle. So focus on the eye's by pushing the AF button in or a half press on the shutter button (and hold it). Then compose the image as you like by moveing the camera.
You can look through the view finder to see what is in focus or not... spend more time on composition vs lining up little green dots.
Just one more point the Kx will beep when it is in focus realy handy for night shots and when or if you go to a manual lens.
This is easy and normal stuff so why is lacking the dots considered a negative for the camera? I have done this with my super zoom and even walked out of a not bright room got focus, go back in the room and get the correct distance from the target then take the shot. What is the advatage of having focus dots? Plus the beep would be great.