hi,

Here's come How-to-adjust dl, ds, ds2, k100d!!

I can't find exact source of this, because it is wide spreaded.

If your pentax camera scribed above have problem with focus, you can adjust it yourself.

And Of course, You yourself is responsible for doing something scribed below.

STEP
1. Power OFF
While pressing [AE-L]+[INFO], turn the camera on.
Firmware is desplayed on LCD.
Press [MENU]->[MENU]->[INFO] within 5 seconds.
You can see DEBUG mode screen.
By pressing [Right key],Make [DEBUG MODE DIS] to [DEBUG MODE EN].
Then, Press [OK].

2. Press [MENU], you can see setup menu.
By pressing [Up key], select AF TEST.
By pressing [Right key], go into AF TEST menu.
By pressing [Down key], select FOCUS CORR.
now you can adjust shift amount by pressing [right key] or [left key].
(*Don't touch AF Area Test.)
after changing the value, Press [OK] to save.
3. Test your camera that Focus is corrected.
(repeat step 2. till you satisfy the result.)
4. Power OFF
While pressing [AE-L]+[INFO], turn the camera on.
Firmware is desplayed on LCD.
Press [MENU]->[MENU]->[INFO] within 5 seconds.
You can see DEBUG mode screen.
By pressing [Right key],Make [DEBUG MODE EN] to [DEBUG MODE DIS].
Then, Press [OK].
5. Go out and enjoy!!

Again, You YOURSELF is responsible for doing this process.