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Forum: Pentax SLR Lens Discussion 01-05-2018, 12:09 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
You need the lens mention 😉
Forum: Pentax SLR Lens Discussion 11-19-2017, 03:41 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
jep - *ist D is not working for that because you cant store/restore lensrom with it
Forum: Pentax SLR Lens Discussion 10-08-2017, 10:40 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
read that HowTo in the dropbox folder.
You have to choose one of the xxx.mod folder and rename it to develop.mod.
On KS2 it'a a bit different - each .mod opens another debug menu.
Forum: Pentax SLR Lens Discussion 05-07-2017, 08:43 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
I did that with my 50-135 because it had backfocus.
I've got 4 different lensroms for the 50-135 and tested all of them - and luckily there was one that fitted perfect for my lens and body.

Otherwise the camera do a backup automatically when uploading a rom (my camera did it).
Forum: Pentax SLR Lens Discussion 05-07-2017, 02:27 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
Lensroms are mostly the same (for one type of lens). There're only differences if there was focus adjustment directly by pentax.
So you can try load other lensrom to your lens (if it's the same lens).

Do you have newest firmeware on your K-S2?
The storage-card door was open and you pushed the menu button while turning the camera on?
Forum: Pentax SLR Lens Discussion 05-04-2017, 06:45 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
@ Botters, here you can find the files you need to get into the debug menu of K-S2:
Enable Debug Menu

Let me know if it works..
Forum: Pentax SLR Lens Discussion 04-20-2017, 02:20 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
i'm in Germany if somebody need help with the conversion ;)
Forum: Pentax SLR Lens Discussion 11-20-2016, 11:41 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
No, it is just a software hack
Forum: Pentax SLR Lens Discussion 01-15-2016, 11:14 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
ok, good. What was the problem?
Forum: Pentax SLR Lens Discussion 01-15-2016, 10:54 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
that is strange - i've never got that problems.
If the screen stays black, your camera didn't read those two files.

Did you just copy those files to your storage card? How much Bytes does your 00077430.505 have?
Should be 17 Bytes...
Forum: Pentax SLR Lens Discussion 01-15-2016, 09:01 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
I found the issue - both files on your sd card end with *.txt, did you change that?
The name of these files should be "00077430.505" and "DEVELOP.MOD" without .txt

I don't know why it is now a .txt file on your sd card - maybe your mac convert to this?
Try if you can rename it without .txt
Forum: Pentax SLR Lens Discussion 01-15-2016, 08:10 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
if you have these two files in the root of your sd card and the card is in the camera..after turning on the camera a "development menu" should be shown in the screen.
Do you have the right files?
Forum: Pentax SLR Lens Discussion 01-15-2016, 05:48 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
ok, i'm sorry. Forgot, that there are problems with lensrom on K3, but K5 /II/s is working! :)
Forum: Pentax SLR Lens Discussion 01-14-2016, 12:43 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
yes, you can open full debug menu without pk tether. So reading and writing of lensrom is possible on K5, K3, etc.
With pk tether you can open debug menu too, but not the full one with reading/writing lensroms

If you wanna read:
https://www.pentaxforums.com/forums/6-pentax-dslr-discussion/250555-resurrect...ml#post2710109
Forum: Pentax SLR Lens Discussion 01-14-2016, 12:23 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
You don't need PK Tether to get into debug mode (and it will not work).
Just have a look in my link - did writing/reading lensrom with K5 and K5IIs without any problems - so you don't need to buy an old Pentax Camera!
Forum: Pentax SLR Lens Discussion 01-14-2016, 08:57 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
Hello Sue,

have a look in this Link: https://www.dropbox.com/sh/k464hmts3b9yk98/AAB-TIg_f-HfSowrT7096_YMa/enable%20Debug%20Menu?dl=0

there you'll find a How-To, it's written what you should do.
Forum: Pentax SLR Lens Discussion 01-10-2016, 10:51 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
Sure... Just send me your lensrom files, I'll convert it to screwdrive.
Forum: Pentax SLR Lens Discussion 10-12-2015, 07:07 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
i don't know...search the forum, maybe you'll find something about it.
Sorry!
Forum: Pentax SLR Lens Discussion 10-07-2015, 09:04 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
you can use your K3 to enter debug menu and modify lensrom.
Just have a look at my signature "Lensrom Database" ;)
Forum: Pentax SLR Lens Discussion 09-13-2015, 08:42 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
yes, that's true.
In that lensrom is a config for focussing, etc.

But not each is different, very often the lensrom is the same.
Look at the link in my signature, i startet a database for lensroms.
Or this Thread: https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/251464-coll...-lensroms.html

Does your 50-135 have any missfocus with your k5?
Forum: Pentax SLR Lens Discussion 08-06-2015, 10:57 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
you should update your firmware to the newest release, because the camera will work better with the newest update.

And yes, MODSET.474 is correct, but you have to written in that file: [OPEN_DEBUG_MENU]

Have a look here: First disassembly results

It is not necessary, that the sd card is blank!



regards,
Stefan
Forum: Pentax SLR Lens Discussion 08-25-2014, 06:01 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
Forum: Pentax SLR Lens Discussion 02-22-2014, 09:40 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
with pkthether you don't get the full debug menu
Forum: Pentax SLR Lens Discussion 02-19-2014, 10:47 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
have a look in my database,
there are a few 16-50 roms now ;)

https://www.pentaxforums.com/forums/6-pentax-dslr-discussion/251464-collectio...ml#post2705178
Forum: Pentax SLR Lens Discussion 02-17-2014, 01:40 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By Duc-Driver
Replies: 870
Views: 275,919
a guy "extract" a lensrom and has described what is responsible for what.
Here is a link, but it is in german: DSLR-Forum - Einzelnen Beitrag anzeigen - K20D - Autofokus Verst

i noticed that the lensrom is every time a bit diffrent if i store it. And if i want to load it to the lens it gives me an error...that's why i think i can't
read/load sigma lenses with powerzoom contacts on the old k100d
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