Win a Pentax Limited Lens: Raffle Now Live!

Tim Skinner · 05-20-2016, 05:39 PM

Greetings folks. I just nabbed a Tak 135 3.5. The mount is a bit puzzling to me. I'm thinking it must be an M42 with an adapter ring of some sort? Any thoughts? The lens was only 17 dollars so whatever it is I'm okay with it. Cheers.

Adam · 05-20-2016, 05:40 PM

Got a pic of it?

Tim Skinner · 05-20-2016, 06:11 PM

Seems my links didn't take hold. I'll try again. Not familiar with this process.

**sergysergy** · 05-20-2016, 06:15 PM

correct, M42 lens with an adapter (which looks like the K mount one)

Not a Number · 05-20-2016, 06:16 PM

Looks like you lucked out and it has a M42 to K-mount adapter. With even more luck it may even be a genuine Pentax adapter. It should unscrew unless it has been thread-locked or glued on. Try using a K-mount rear cap as a wrench if it is a little tight but don't use excessive force.

If it is a genuine Pentax it should be labeled Asahi Pentax or Pentax and Japan or Philippines.

Tim Skinner · 05-20-2016, 06:20 PM

Originally posted by sergysergy

correct, M42 lens with an adapter (which looks like the K mount one)

Well that'll work.

As soon as it arrives I'll confirm. Thanks.

---------- Post added 05-20-16 at 06:24 PM ----------

Originally posted by Not a Number

Looks like you lucked out and it has a M42 to K-mount adapter. With even more luck it may even be a genuine Pentax adapter. It should unscrew unless it has been thread-locked or glued on. Try using a K-mount rear cap as a wrench if it is a little tight but don't use excessive force.

If it is a genuine Pentax it should be labeled Asahi Pentax or Pentax and Japan or Philippines.

Well now I'm especially anxious to have a look at it. Should be here soon so I'll follow up. Thanks for the insights. I already have one of these lenses but I figured this one looked intriguing plus I gather some vintages are better than others so why not nab it. Thanks again. Cheers.

Not a Number · 05-20-2016, 06:33 PM

If it has been glued on the spring clip would have been removed. The spring is black/gun metal so it will be obvious if it is there or not.

Tim Skinner · 05-20-2016, 06:51 PM

Originally posted by Not a Number

If it has been glued on the spring clip would have been removed. The spring is black/gun metal so it will be obvious if it is there or not.

It's not obvious from the eBay photos so I'll have to wait and see I guess. I can use it in either configuration, so it's good news regardless. I ended up with 135 2.5 too which might be great but that 135 3.5 is such a clean design.

Thanks for the feedback.

**Quartermaster James** · 05-20-2016, 06:58 PM

Confirm what it is before you mount it. See if it unscrews. Use the rear lens cap as a grip. If it is an original Pentax adapter and if it has been glued on without removing the retaining clip, removal from a body could be problematic.

Tim Skinner · 05-20-2016, 07:11 PM

Originally posted by Quartermaster James

Confirm what it is before you mount it. See if it unscrews. Use the rear lens cap as a grip. If it is an original Pentax adapter and if it has been glued on without removing the retaining clip, removal from a body could be problematic.

Good advice. I can bolt it to my PK — EOS adapter ring to safely test it I suppose.

Tim Skinner · 05-26-2016, 10:04 AM

The lens arrived today. That adapter is solidly and permanently attached to the lens. => Takumar 135 3.5 - Figurative Sculptures

I cannot imaging how the lens ended up with so much crud inside it though. Stripped it down and cleaned things up and it's as good as new now. Really pleased. $14 spent well I'd say.

Won't lock onto my PK =>NEX adapter but clicks into place nicely on my PK => EOS adapter. Go figure.

Thanks everyone for your input.

Not a Number · 05-26-2016, 10:57 AM

Originally posted by Tim Skinner

Won't lock onto my PK =>NEX adapter but clicks into place nicely on my PK => EOS adapter. Go figure.

Different tolerances most likely.

Does it have the spring clip on the adapter?

Tim Skinner · 05-26-2016, 02:11 PM

Originally posted by Not a Number

Different tolerances most likely.

Does it have the spring clip on the adapter?

I just noticed the NEX adapter pin is set at a wider diameter so it misses the slot on the permanent M42-PK adapter. Photo: => Photography and Vintage Lenses - Figurative Sculptures

05-20-2016, 05:39 PM	#1
Tim Skinner New Member Join Date: May 2016 Posts: 14	Is it an M42 with an adapter? Greetings folks. I just nabbed a Tak 135 3.5. The mount is a bit puzzling to me. I'm thinking it must be an M42 with an adapter ring of some sort? Any thoughts? The lens was only 17 dollars so whatever it is I'm okay with it. Cheers.

05-20-2016, 05:40 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,609	Got a pic of it? 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:

05-20-2016, 06:11 PM	#3
Tim Skinner New Member Join Date: May 2016 Posts: 14 Original Poster	Seems my links didn't take hold. I'll try again. Not familiar with this process. Attached Images

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Preventing M42 adapter light leaks and dust ingress - an easy solution!	BigMackCam	Pentax SLR Lens Discussion	41	01-18-2022 02:49 PM
Trouble Mounting an M42 lens via an M42-K Adapter onto K-mount Bodies	fwcetus	Pentax SLR Lens Discussion	9	09-19-2015 02:51 PM
Will gluing an m42 pin down prevent it from working on M42 bodies?	ZombieArmy	Pentax SLR Lens Discussion	13	07-25-2015 04:10 PM
Is it Possible to use an AF lens on an MF body?	Photo_Man_Dan	Film SLRs and Compact Film Cameras	11	04-27-2012 04:54 AM
Do All M42 lenses work on Pentax with an adapter..	throndor	Pentax SLR Lens Discussion	16	09-16-2008 06:00 AM

05-20-2016, 06:15 PM	#4
sergysergy Site Supporter Join Date: Jan 2011 Photos: Gallery Posts: 5,176	correct, M42 lens with an adapter (which looks like the K mount one)

05-20-2016, 06:16 PM	#5
Not a Number Moderator Join Date: Mar 2012 Location: Venice, CA Posts: 10,526	Looks like you lucked out and it has a M42 to K-mount adapter. With even more luck it may even be a genuine Pentax adapter. It should unscrew unless it has been thread-locked or glued on. Try using a K-mount rear cap as a wrench if it is a little tight but don't use excessive force. If it is a genuine Pentax it should be labeled Asahi Pentax or Pentax and Japan or Philippines.

05-20-2016, 06:20 PM	#6
Tim Skinner New Member Join Date: May 2016 Posts: 14 Original Poster	Originally posted by sergysergy correct, M42 lens with an adapter (which looks like the K mount one) Well that'll work. As soon as it arrives I'll confirm. Thanks. ---------- Post added 05-20-16 at 06:24 PM ---------- Originally posted by Not a Number Looks like you lucked out and it has a M42 to K-mount adapter. With even more luck it may even be a genuine Pentax adapter. It should unscrew unless it has been thread-locked or glued on. Try using a K-mount rear cap as a wrench if it is a little tight but don't use excessive force. If it is a genuine Pentax it should be labeled Asahi Pentax or Pentax and Japan or Philippines. Well now I'm especially anxious to have a look at it. Should be here soon so I'll follow up. Thanks for the insights. I already have one of these lenses but I figured this one looked intriguing plus I gather some vintages are better than others so why not nab it. Thanks again. Cheers.

05-20-2016, 06:33 PM	#7
Not a Number Moderator Join Date: Mar 2012 Location: Venice, CA Posts: 10,526	If it has been glued on the spring clip would have been removed. The spring is black/gun metal so it will be obvious if it is there or not.

05-20-2016, 06:51 PM	#8
Tim Skinner New Member Join Date: May 2016 Posts: 14 Original Poster	Originally posted by Not a Number If it has been glued on the spring clip would have been removed. The spring is black/gun metal so it will be obvious if it is there or not. It's not obvious from the eBay photos so I'll have to wait and see I guess. I can use it in either configuration, so it's good news regardless. I ended up with 135 2.5 too which might be great but that 135 3.5 is such a clean design. Thanks for the feedback.

05-20-2016, 06:58 PM	#9
Quartermaster James Loyal Site Supporter Join Date: Oct 2014 Location: Anchorage, Alaska Posts: 653	Confirm what it is before you mount it. See if it unscrews. Use the rear lens cap as a grip. If it is an original Pentax adapter and if it has been glued on without removing the retaining clip, removal from a body could be problematic.

05-20-2016, 07:11 PM	#10
Tim Skinner New Member Join Date: May 2016 Posts: 14 Original Poster	Originally posted by Quartermaster James Confirm what it is before you mount it. See if it unscrews. Use the rear lens cap as a grip. If it is an original Pentax adapter and if it has been glued on without removing the retaining clip, removal from a body could be problematic. Good advice. I can bolt it to my PK — EOS adapter ring to safely test it I suppose.

05-26-2016, 10:04 AM	#11
Tim Skinner New Member Join Date: May 2016 Posts: 14 Original Poster	The lens arrived today. That adapter is solidly and permanently attached to the lens. => Takumar 135 3.5 - Figurative Sculptures I cannot imaging how the lens ended up with so much crud inside it though. Stripped it down and cleaned things up and it's as good as new now. Really pleased. $14 spent well I'd say. Won't lock onto my PK =>NEX adapter but clicks into place nicely on my PK => EOS adapter. Go figure. Thanks everyone for your input.

05-26-2016, 10:57 AM	#12
Not a Number Moderator Join Date: Mar 2012 Location: Venice, CA Posts: 10,526	Originally posted by Tim Skinner Won't lock onto my PK =>NEX adapter but clicks into place nicely on my PK => EOS adapter. Go figure. Different tolerances most likely. Does it have the spring clip on the adapter?

05-26-2016, 02:11 PM	#13
Tim Skinner New Member Join Date: May 2016 Posts: 14 Original Poster	Originally posted by Not a Number Different tolerances most likely. Does it have the spring clip on the adapter? I just noticed the NEX adapter pin is set at a wider diameter so it misses the slot on the permanent M42-PK adapter. Photo: => Photography and Vintage Lenses - Figurative Sculptures

Is it an M42 with an adapter?

Win a Pentax Limited Lens: Raffle Now Live!