what is the secret of this hack ??

photoshoper · 06-12-2013, 03:51 PM

You Tube

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

Adam · 06-12-2013, 04:08 PM

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.

p38arover · 06-13-2013, 03:31 AM

Like this?

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/63878-how-conv...s-ka-lens.html

aurele · 06-13-2013, 04:43 AM

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.

06-12-2013, 04:08 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	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 PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. 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:

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

06-13-2013, 03:31 AM	#3
p38arover Veteran Member Join Date: Mar 2012 Location: Western Sydney, Australia Photos: Gallery \| Albums Posts: 3,084	Like this? https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/63878-how-conv...s-ka-lens.html

06-13-2013, 04:43 AM	#4
aurele Veteran Member Join Date: Jan 2011 Location: Paris, France Photos: Albums Posts: 3,217	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.