K to M adapter stuck......

stevebrot · 11-28-2016, 02:53 PM

Originally posted by BigMackCam

Yes, but a photo or two of it mounted on the camera would help immensely, so we can see the actual two-part adapter (which may in fact be two adapters)...

Originally posted by UncleVanya

Agreed. I suggested photos earlier. Maybe even a movie of the attempt at removal would help.

Yes, very strange. I very much would like to see a photo of this adapter.

Steve

BenCPentax · 11-28-2016, 03:01 PM

Well then I'll take a photo of it tomorrow.
There are two slots in the outer part of the adapter, the inner part just fits inside and held by grub screws.
Thanks for the tips.

**BigMackCam** · 11-28-2016, 03:02 PM

Originally posted by BenCPentax

I don't see why a photo would help, actually.
Cheers.

Ben, we're keen to help you. I'm keen to help you. There are many adapters that look quite like each other but aren't exactly the same. One of us here will probably recognise the exact adaptor. All we have to go on right now is what you're telling us. Maybe the photo won't help, but it just might

**BigMackCam** · 11-28-2016, 03:03 PM

Originally posted by BenCPentax

Well then I'll take a photo of it tomorrow.
There are two slots in the outer part of the adapter, the inner part just fits inside and held by grub screws.
Thanks for the tips.

Excellent. I'll look out for your post

Audi 5 cyl · 11-28-2016, 03:06 PM

third party adapters without the locking pin hole (or even with it) can get stuck if turned too much CCW, passed the mounting point when being removed. then the adapter can turn a bit, maybe even wiggle but will not come off. The best solution is to access the small copper locking metal thingy (looking at the camera from the front, it is located on the left side, just above the aperture control mechanism) in the mount (that normally prevents the lens from turning too far CCW), through the adapter (make a tool if you can not reach it otherwise) and than, turn further CCW until in the proper un-mounting position (about 280 deg or so if this is the case).
I did this for me and some of my friends a number of times. It should take a minute or so if you push the right buttons.

Hereunder, a quick photo of the metal thingy you should push on from the inside.

Regards,

MArko

danielblues · 11-28-2016, 04:01 PM - **1 Like**

I've managed to get a reverse adaptor stuck and only the local shop managed to get it out by drilling on the screws positions and taking the hole mount out.

Hope it helps, for me it was a 35€ lesson, and I wouldn’t do it myself.

Daniel

BenCPentax · 11-29-2016, 03:46 AM

Audi, thanks for that tip. The adapter is quite deep so the tab you mentioned was not accessible.

Tried drilling the front face of the adapter with Dremel and 3.5mm bit, it's solid aluminium so not a great idea (used a sock in the mirror box and a vacuum to take away the metal dust so no problem there).

Eventually had success last night, I got it off the same way I got it on, with the lens attached. (Meyer Orestogon 300mm f/4)
Gave it a couple hard turns each way and it seemed to free itself. Lens mount wasn't damaged thankfully.

I won't be using this adapter again, and might re-sell the lens since it's enormous.
I'll post a photo of the adapter later, bit busy right now.

Last edited by BenCPentax; 11-29-2016 at 05:04 AM.

Topsy · 11-29-2016, 05:20 AM

I was just about to suggest trying it with the lens on.
I got a tamron adaptall stuck last week and got it off fairly easy when I tried to remove it with the lens on..

I assume you mean a p6 to pk adapter then? Or have you got the p6 to m42 on the lens and then used and m42 to pk?

I can't quite remember what my exact adapter setup is on my Orestegon, but I'll check today for you and tell you what I've got on it.

Topsy · 11-29-2016, 09:29 AM

Okay, so: I've got the original lens to pentacon6 mount adapter (the one that gets tightened to the lens with a threaded ring).
That is adapted to a K&F Concept Pentacon 6 to Pentax K adapter which locks into the camera normally.

I initially had the m42 mount for the lens, but found that too insecure of a fit for the massive lens.

I'd still be interested in seeing a picture of the part that got stuck by you!

BenCPentax · 11-30-2016, 10:55 AM

Just a follow up, it seems this adapter works very well actually....IF you get the red dots lined up.
So I tried the Meyer lens and just working out how to meter with it now.
The lens tripod mount seems to be larger than normal.

Thanks for all the tips and advice. :-)

**BigMackCam** · 11-30-2016, 10:59 AM

Ben - to put us out of our misery, would you mind posting a photo of the adapter, please? It would extinguish our (my

) curiosity and may be helpful to others in future. It helps to expand everyone's knowledge. Thanks in advance

BenCPentax · 11-30-2016, 11:41 AM

Reason I haven't uploaded a photo is I'm trying to switch from PC to Mac, after re-installing the Mac....PC is not working well
and yes I'll add a photo of this Pentax K to M adapter as and when I can.

**BigMackCam** · 11-30-2016, 12:35 PM

Thanks Ben - it would be appreciated. Good luck with the upgrade...

Topsy · 11-30-2016, 04:03 PM - **1 Like**

Glad you got everything to work!

Originally posted by BenCPentax

The lens tripod mount seems to be larger than normal.

There are 3/8" to 1/4" adapters available for that, your local camera store should have some lying around somewhere.

BenCPentax · 12-05-2016, 05:15 AM - **1 Like**

S.W. Ireland doesn't have a 'local camera store'....nearest is 60 miles and it's rather basic.

At last photos of the adapter.....first photo shows hole I drilled before realising I didn't need to.
Second photo shows the recess thingy.
Main thing I learned was to line up the red dots and it works just fine.

11-28-2016, 04:01 PM - 1 Like	#21
danielblues Senior Member Join Date: Sep 2013 Location: Cascais, Portugal Posts: 173	I've managed to get a reverse adaptor stuck and only the local shop managed to get it out by drilling on the screws positions and taking the hole mount out. Hope it helps, for me it was a 35€ lesson, and I wouldn’t do it myself. Daniel Attached Images Last edited by danielblues; 11-29-2016 at 02:46 AM.

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11-28-2016, 02:53 PM	#16
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by BigMackCam Yes, but a photo or two of it mounted on the camera would help immensely, so we can see the actual two-part adapter (which may in fact be two adapters)... Originally posted by UncleVanya Agreed. I suggested photos earlier. Maybe even a movie of the attempt at removal would help. Yes, very strange. I very much would like to see a photo of this adapter. Steve

11-28-2016, 03:01 PM	#17
BenCPentax Junior Member Join Date: Mar 2016 Posts: 41 Original Poster	Well then I'll take a photo of it tomorrow. There are two slots in the outer part of the adapter, the inner part just fits inside and held by grub screws. Thanks for the tips.

11-28-2016, 03:02 PM	#18
BigMackCam Digitiser of Film Join Date: Mar 2010 Location: North East of England Posts: 20,673	Originally posted by BenCPentax I don't see why a photo would help, actually. Cheers. Ben, we're keen to help you. I'm keen to help you. There are many adapters that look quite like each other but aren't exactly the same. One of us here will probably recognise the exact adaptor. All we have to go on right now is what you're telling us. Maybe the photo won't help, but it just might

11-28-2016, 03:03 PM	#19
BigMackCam Digitiser of Film Join Date: Mar 2010 Location: North East of England Posts: 20,673	Originally posted by BenCPentax Well then I'll take a photo of it tomorrow. There are two slots in the outer part of the adapter, the inner part just fits inside and held by grub screws. Thanks for the tips. Excellent. I'll look out for your post

11-29-2016, 03:46 AM	#22
BenCPentax Junior Member Join Date: Mar 2016 Posts: 41 Original Poster	Audi, thanks for that tip. The adapter is quite deep so the tab you mentioned was not accessible. Tried drilling the front face of the adapter with Dremel and 3.5mm bit, it's solid aluminium so not a great idea (used a sock in the mirror box and a vacuum to take away the metal dust so no problem there). Eventually had success last night, I got it off the same way I got it on, with the lens attached. (Meyer Orestogon 300mm f/4) Gave it a couple hard turns each way and it seemed to free itself. Lens mount wasn't damaged thankfully. I won't be using this adapter again, and might re-sell the lens since it's enormous. I'll post a photo of the adapter later, bit busy right now. Last edited by BenCPentax; 11-29-2016 at 05:04 AM.

11-29-2016, 05:20 AM	#23
Topsy Veteran Member Join Date: Feb 2014 Photos: Gallery \| Albums Posts: 625	I was just about to suggest trying it with the lens on. I got a tamron adaptall stuck last week and got it off fairly easy when I tried to remove it with the lens on.. I assume you mean a p6 to pk adapter then? Or have you got the p6 to m42 on the lens and then used and m42 to pk? I can't quite remember what my exact adapter setup is on my Orestegon, but I'll check today for you and tell you what I've got on it.

11-29-2016, 09:29 AM	#24
Topsy Veteran Member Join Date: Feb 2014 Photos: Gallery \| Albums Posts: 625	Okay, so: I've got the original lens to pentacon6 mount adapter (the one that gets tightened to the lens with a threaded ring). That is adapted to a K&F Concept Pentacon 6 to Pentax K adapter which locks into the camera normally. I initially had the m42 mount for the lens, but found that too insecure of a fit for the massive lens. I'd still be interested in seeing a picture of the part that got stuck by you!

11-30-2016, 10:55 AM	#25
BenCPentax Junior Member Join Date: Mar 2016 Posts: 41 Original Poster	Just a follow up, it seems this adapter works very well actually....IF you get the red dots lined up. So I tried the Meyer lens and just working out how to meter with it now. The lens tripod mount seems to be larger than normal. Thanks for all the tips and advice. :-)

11-30-2016, 10:59 AM	#26
BigMackCam Digitiser of Film Join Date: Mar 2010 Location: North East of England Posts: 20,673	Ben - to put us out of our misery, would you mind posting a photo of the adapter, please? It would extinguish our (my ) curiosity and may be helpful to others in future. It helps to expand everyone's knowledge. Thanks in advance

11-30-2016, 11:41 AM	#27
BenCPentax Junior Member Join Date: Mar 2016 Posts: 41 Original Poster	Reason I haven't uploaded a photo is I'm trying to switch from PC to Mac, after re-installing the Mac....PC is not working well and yes I'll add a photo of this Pentax K to M adapter as and when I can.

11-30-2016, 12:35 PM	#28
BigMackCam Digitiser of Film Join Date: Mar 2010 Location: North East of England Posts: 20,673	Thanks Ben - it would be appreciated. Good luck with the upgrade...

11-30-2016, 04:03 PM - 1 Like	#29
Topsy Veteran Member Join Date: Feb 2014 Photos: Gallery \| Albums Posts: 625	Glad you got everything to work! Originally posted by BenCPentax The lens tripod mount seems to be larger than normal. There are 3/8" to 1/4" adapters available for that, your local camera store should have some lying around somewhere.