Hello everyone!
After a lot of searching through the forms and help from dflorez, UncleVanya, and whoever made the dropbox link I was able to convert my lens. I had a hard time understanding the process, but I finally figured it out. I decided something this complicated needs a video. In this video I converted the 50-135mm lens, but I understand the process is the same for the 16-50, 60-250, 200, and 300mm lenses. I hope this is helpful to you and Good Luck!
The video is here:
HOW TO: Convert SDM to ScrewDrive - Pentax - YouTube
Below you will see the process I followed. Again, I have the forums here to thank for giving me this information. I hope it helps you.
Too Much for you? Go here:
https://www.pentaxforums.com/forums/24-photographic-equipment-sale/311609-sal...ersions-3.html Wanna give it a try? Keep Going.
NOTE: I am not responsible for any damage that my occur to your equipment. Continue at your own risk. Stuff you need:
Dropbox- Pentax Hack Files:
Dropbox - enable Debug Menu - Simplify your life
Lens Hack Directions:
How to deactivate SDM and allow for screw drive autofocus with DA* 50-135mm f/2.8 - Le site des amateurs de PENTAX
Pktether: Since the site is down due to malware, here is a link to the most recent version on my Google Drive:
https://drive.google.com/open?id=0B2uv9RXId6z4eUE2OTZmVTMybFk
If the site ever gets fixed... you can go here. BUT DON'T right now (05/24/16)
PK_Tether – Tethering Software for Pentax DSLR Cameras
Nopad++ (text editor):
Notepad++ v6.9.2
Pentax Forums Other Links:
https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/208353-how-...-2-8-a-41.html My Steps
1.) Download PKTether (pktether site)
2.) Download Camera Hack files (drop box)
3.) Download Notepad++
4.) Open Pktether
5.) Place SD card into camera, connect camera to computer (USB cable)
6.) Turn on Camera In PKtether activate DEBUG MODE
7.) Copy Hack Files to SD card
8.) Disconnect camera from USB cable
9.) Power Down Camera, Power back on
You are in Development Menu
10.) Scroll down to "Lens Rom Camera=SD" and hit OK. (it should go black, and then you will see the same screen again)
11.) Power off camera, Move SD card to PC and open it
12.) You are looking for the LENSEEP.LNS file. MAKE A BACKUP of this file - THIS IS LENS COPY SPECIFIC - ONLY YOUR FILE WORKS WITH YOUR LENS!
13.) Open LENSEEP.LNS with Notepad++
14.) Replace ALL instances of "C0" in column "03" with "80". DO NOT REPLACE any instances of "C0" outside of column "03".
15.) Move the new LENSEEP.LNS file to your SD card (replacing the orginal, remember to back up the orginal)
16.) Power Camera on
17.) Scroll to "LENS ROM DAT SD= CAMERA" and hit OK ( you will see "Wait..." and then some text)
NOTE: It failed the first time for me, needed to do it twice
18.) When Complete, lens should be in screw Drive
19.) Disable Debug Mode
A.) Use camera settings Menue Button Scroll left until you see "Test Mode" Disable Debug Mode Hit OK
B.) Connect to PKtether, Click Debug Mode Off