[troenaas]

this adjustment can be done in software via the debug menu.

What software do you use? PK tether? Or something else?

[ryan63]

I previously used pktether to enable debug menus when I had the K-5.
unfortunately PK tether does not support the K-3
In this case it was necessary to enter debug via a boot file stored on the root of a SD card


FromTjompen1968
Pentaxian

The K-3 Debug Mode

This is how you enter:

Create 2 files in the root of SD card (Make sure your computer shows the file endings, i.e .txt, .PEF, . JPG etc)

00077760.502
DEVELOP.MOD

Open and add the text [OPEN_DEBUG_MENU] to the first file.

Insert the SD card in slot 1 and turn on the camera without closing the card door.

Enable Debug Mode and press OK. You can now remove the files.

In the Menus, before the C1-menu, you now will find a hidden menu
I'll post a photo sequence shortly

[ryan63]

1- create two files in the root directory of a SD card,
first one named 00077760.502
(this is specific to the K-3. other models have different number codes for the name of this file!)
and
second named DEVELOP.MOD

2-Edit 00077760.502 in a text editor to add the line [OPEN_DEBUG_MENU]

3-Insert this card into slot 1. do not close the card slot door. switch on the camera.

4-the development menu will appear.


5-set DEBUG MODE TO EN (Enabled) and hit OK.

6-Turn off the camera and remove the SD card........put in your normal sd card and close the door

7-Turn on the camera. open the menu.... a hidden menu called Test mode now exists between the C and the Wrench menus.

8-enter the test mode menu & scroll down to AF Test. open this menu.

9-Leave AF Area test and AF Area Number Well Alone!

10-scroll down to Focus Corr. dial in a value + or - (the units here do not correspond to the units in the normal Focus adjust menu.
a correction here of +60um changed the required adjust on my lens from a value of more than +10 to only +7)
the correction added here will be added to all the corrections set in the normal way!

11-press ok to accept the change. this will kick you out of the menus.

12-if you return to the menu you will find that the value dialled in previously now appears above the slider (this means it has been stored) and the Focus Corr value shows as 0

13-return to the test mode menu and scroll to the bottom to disable the Debug mode- as you do not want to accidentally change any settings in there.

See picture sequence below.

This procedure has worked for me but proceed at your own risk. there are setting accessible via this method that if set incorrectly could turn your camera into an expensive brick.

[Wingincamera]

I don't need this info yet, but I copied it into a Word document with link. Thank you.

[ryan63]

If you need to use debug Mode on other than a K-3, search the forum for debug and your camera model.
The numbered file with the debug command is specific to different models