K/AR to K mount adapter

Stupot1 · 05-12-2012, 10:31 AM

I'm looking for an adapter to enable a K/AR mount lens to be used on a Pentax digital SLR body. Does such a gadget exist?

Adam · 05-12-2012, 10:39 AM

Check for the "RIcoh pin". If it's not there, then you can probably use the lens without an adapter.

**interested_observer** · 05-12-2012, 10:40 AM

The mounts are the same, however do not mount the lens, since the Ricoh lens has an additional pin that will get stuck in the screw drive of the camera, there by making the lens nearly impossible to remove - use a feeler gauge. Here is the fix....

vonBaloney · 05-12-2012, 10:42 AM

Konica K/AR mount or just a Pentax-Ricoh KA/R mount? If Konica mount, then I believe the Konica mount has a shorter registration distance, making such a gadget impossible. So any possibility of using it on a Pentax would involving hacking the lens itself somehow. For a Pentax KA/R mount, you don't need an adapter...

Stupot1 · 05-12-2012, 11:00 AM

It is Konica K/AR so I guess the answer is no. Thanks to all for the input.

RioRico · 05-12-2012, 11:34 AM

Originally posted by Stupot1

It is Konica K/AR so I guess the answer is no.

Correct. Konica mounts can be used on m4/3, NX, NEX, N1, Q etc, but not readily on APS dSLRs.

Eulogy · 05-12-2012, 11:42 AM

Might I correct this - They *can* be used on DSLR, but they'll either lose infinity focus, or they'll require optical correction. You can order pro grade adapters through camera shops, though unless you have 5+ Konica lenses, I wouldn't waste the 150+USD

**Douglas_of_Sweden** · 05-13-2012, 02:41 AM

So far I haven't seen such an adapter, so please point us to it with a link. Optical adapters for Nikon F/Minolta/Canon FD to K mount yes, but no Konica AR.

Typically AR lenses mount upside down on K cameras, but do not lock, and o course no infinity. I've made my own non-optical non-infinity adapter that I use for my AR macro lenses and bellows. That is worth the effort, and then infinity doesn't matter.

RioRico · 05-13-2012, 11:49 AM

Originally posted by Douglas_of_Sweden

I've made my own non-optical non-infinity adapter that I use for my AR macro lenses and bellows. That is worth the effort, and then infinity doesn't matter.

Ah yes: Yet Another Macro Lens (YAML).

Q: How can I use XYZ on Pentax?
A: YAML, of course.

Q: What am I going to do with this thing?!?!?
A: YAML, of course.

Q: Why am I overflowing with lenses?
A: YAML, of course.

There is no end to this.

**Douglas_of_Sweden** · 05-13-2012, 06:31 PM

Originally posted by RioRico

Ah yes: Yet Another Macro Lens (YAML).

Q: How can I use XYZ on Pentax?
A: YAML, of course.

Q: What am I going to do with this thing?!?!?
A: YAML, of course.

Q: Why am I overflowing with lenses?
A: YAML, of course.

There is no end to this.

Well, my main reason to own most Konica lenses between 21 and 200mm is to use them on Konica film bodies. The macro apps on Pentax DLRS's is just a bonus...and my Konica bellows is fancier than any of my Pentax bellows.

05-12-2012, 10:31 AM	#1
Stupot1 New Member Join Date: May 2012 Location: Aberdeenshire, Scotland Posts: 13	K/AR to K mount adapter I'm looking for an adapter to enable a K/AR mount lens to be used on a Pentax digital SLR body. Does such a gadget exist?

05-12-2012, 10:39 AM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,594	Check for the "RIcoh pin". If it's not there, then you can probably use the lens without an adapter. 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:

05-12-2012, 10:40 AM	#3
interested_observer Loyal Site Supporter Join Date: Jun 2009 Location: Tumbleweed, Arizona Photos: Gallery \| Albums Posts: 5,707	The mounts are the same, however do not mount the lens, since the Ricoh lens has an additional pin that will get stuck in the screw drive of the camera, there by making the lens nearly impossible to remove - use a feeler gauge. Here is the fix.... Hin's Tech Corner: Ricoh Pin and Ricoh R/K mount theatre of noise: Ricoh Lenses On Pentax Cameras -- The Ricoh Pin Fix

05-12-2012, 11:34 AM	#6
RioRico Veteran Member Join Date: Jun 2008 Location: Limbo, California Posts: 11,263	Originally posted by Stupot1 It is Konica K/AR so I guess the answer is no. Correct. Konica mounts can be used on m4/3, NX, NEX, N1, Q etc, but not readily on APS dSLRs. Last edited by RioRico; 05-12-2012 at 01:27 PM.

05-13-2012, 11:49 AM	#9
RioRico Veteran Member Join Date: Jun 2008 Location: Limbo, California Posts: 11,263	* yaml * Originally posted by Douglas_of_Sweden I've made my own non-optical non-infinity adapter that I use for my AR macro lenses and bellows. That is worth the effort, and then infinity doesn't matter. Ah yes: Yet Another Macro Lens (YAML). Q: How can I use XYZ on Pentax? A: YAML, of course. Q: What am I going to do with this thing?!?!? A: YAML, of course. Q: Why am I overflowing with lenses? A: YAML, of course. There is no end to this.

05-12-2012, 10:42 AM	#4
vonBaloney Pentaxian Join Date: Oct 2011 Location: Albuquerque, NM Posts: 6,029	Konica K/AR mount or just a Pentax-Ricoh KA/R mount? If Konica mount, then I believe the Konica mount has a shorter registration distance, making such a gadget impossible. So any possibility of using it on a Pentax would involving hacking the lens itself somehow. For a Pentax KA/R mount, you don't need an adapter...

05-12-2012, 11:00 AM	#5
Stupot1 New Member Join Date: May 2012 Location: Aberdeenshire, Scotland Posts: 13 Original Poster	It is Konica K/AR so I guess the answer is no. Thanks to all for the input.

05-12-2012, 11:42 AM	#7
Eulogy Veteran Member Join Date: Feb 2012 Location: Fredericton, New Brunswick Photos: Gallery Posts: 632	Might I correct this - They can be used on DSLR, but they'll either lose infinity focus, or they'll require optical correction. You can order pro grade adapters through camera shops, though unless you have 5+ Konica lenses, I wouldn't waste the 150+USD

05-13-2012, 02:41 AM	#8
Douglas_of_Sweden Site Supporter Join Date: Apr 2008 Location: Stockholm Photos: Gallery Posts: 3,374	So far I haven't seen such an adapter, so please point us to it with a link. Optical adapters for Nikon F/Minolta/Canon FD to K mount yes, but no Konica AR. Typically AR lenses mount upside down on K cameras, but do not lock, and o course no infinity. I've made my own non-optical non-infinity adapter that I use for my AR macro lenses and bellows. That is worth the effort, and then infinity doesn't matter.

05-13-2012, 06:31 PM	#10
Douglas_of_Sweden Site Supporter Join Date: Apr 2008 Location: Stockholm Photos: Gallery Posts: 3,374	Originally posted by RioRico Ah yes: Yet Another Macro Lens (YAML). Q: How can I use XYZ on Pentax? A: YAML, of course. Q: What am I going to do with this thing?!?!? A: YAML, of course. Q: Why am I overflowing with lenses? A: YAML, of course. There is no end to this. Well, my main reason to own most Konica lenses between 21 and 200mm is to use them on Konica film bodies. The macro apps on Pentax DLRS's is just a bonus...and my Konica bellows is fancier than any of my Pentax bellows.

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