DS, DL, K100D instructions too! M.S. Shin posted instructions for these cameras as well.
Here is the link:
self focus adjust for dl,ds,ds2,k100d.: Pentax SLR Talk Forum: Digital Photography Review
And the message, in case it suddenly "evaporates" from DPreview:
Quote: 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.
My note on #2: after pressing the "Menu" button go first to the "Set-up" menu. This is not quite clear, it looks like the right menu appears right away. Once in the "Set-up" menu three new options are added after the last option ("Reset" on *istDS) as follows:
CAPTURE TEST
SYSTEM TEST
AF TEST
Inside the AF TEST menu there are two options:
- AF Area Test [values 0 to 3]
- Focus Corr. [range -120 to 120 um]
So go down to "Focus Corr." and use left/right keys to adjust value, "OK" to accept, "Menu" to exit.
Also: some diagnostics information appears on the screen all the time. This appears to be normal. After power off then back on while holding Info+AE-L DSP (Digital Signal Processor) and CPU versions appear in yellow text instead of the firmware version. At first it looks like some sort of error indication (why yellow?) but it appears to be perfectly normal - if you do not press Menu-Menu-Info within 5 seconds this information stays visible with other diagnostics information.
Tested on my *istDS with firmware version 2.00.
-= IVAN =-