Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
06-12-2013, 03:51 PM   #1
Forum Member

Join Date: Apr 2010
Location: Cairo
Posts: 77
what is the secret of this hack ??

How could he turn the K lens to work as A lens ??

06-12-2013, 04:08 PM   #2
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 50,021
You have to add A-style electrical contacts to the lens mount. The problem with this, however, is that the aperture lever operates differently on A lenses than on K lenses, so the exposure will be off when stopped down.

Adam Webmaster (Site Usage Guide | Site Help | My Photography) server and development costs are user-supported. You can help cover these costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

06-13-2013, 03:31 AM   #3
Veteran Member
p38arover's Avatar

Join Date: Mar 2012
Location: Western Sydney, Australia
Photos: Gallery | Albums
Posts: 3,084
Like this?
06-13-2013, 04:43 AM   #4
aurele's Avatar

Join Date: Jan 2011
Location: Paris, France
Photos: Albums
Posts: 3,215
during the video you can see he turn the dial on the K-01 and the aperture on the screen show f1.0.

So he just added a pin for the A, and no other.

Another thing often point out in this kind of conversion is that the more you go far from min and max aperture, the more the metering is off, and need a lot of compensation.


  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
camera, dslr, lens, pentax, photography
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
What kind of mount is this? iNicole Troubleshooting and Beginner Help 8 09-15-2012 01:07 PM
This my friends is the problem but what is the answer? seacapt General Talk 76 09-08-2012 02:47 AM
What kind of mount is this? Vasyl Troubleshooting and Beginner Help 29 06-02-2012 10:04 AM
what kind of mount is this? Kx-Rick Troubleshooting and Beginner Help 6 08-12-2011 09:42 AM
What is wrong with the camera stores of this place? deudeu Photographic Technique 5 07-05-2008 07:07 PM

All times are GMT -7. The time now is 07:58 PM. | See also:, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]