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hoanpham
Joined: 31 Jan 2011 Posts: 2575
Expire: 2015-01-18
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Posted: Thu Nov 29, 2012 9:21 pm Post subject: Opening tool for M42 adapters |
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hoanpham wrote:
I have a pentax M42 adapter on a Takumar, but it got stuck really hard.
I saw some 3rd party M42 adapters on ebay that have an opening tool/key.
Can anyone recommend a good one?
thanks. _________________ La migliore cura di LBA � imparare una nuova lingua. Le meilleur rem�de de LBA est d'apprendre une nouvelle langue. La mejor cura del LBA es aprender una nueva lengua. |
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peterqd
Joined: 28 Feb 2007 Posts: 7448 Location: near High Wycombe, UK
Expire: 2014-01-04
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Posted: Thu Nov 29, 2012 10:05 pm Post subject: |
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peterqd wrote:
Hoan, have you tried unscrewing the lens while the adapter is fitted in the camera? Always works for me. _________________ Peter - Moderator |
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hoanpham
Joined: 31 Jan 2011 Posts: 2575
Expire: 2015-01-18
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Posted: Thu Nov 29, 2012 10:34 pm Post subject: |
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hoanpham wrote:
Thanks. I have a film body faulty for this _________________ La migliore cura di LBA � imparare una nuova lingua. Le meilleur rem�de de LBA est d'apprendre une nouvelle langue. La mejor cura del LBA es aprender una nueva lengua. |
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Aanything
Joined: 27 Aug 2011 Posts: 2187 Location: Piacenza, Italy
Expire: 2014-05-30
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Posted: Thu Nov 29, 2012 11:12 pm Post subject: |
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Aanything wrote:
Usually the rear lens cap of my minolta AF lenses does the job, but I don't know how pentax adapters are. _________________ C&C and editing of my pics are always welcome
Samples from my lenses
My gear
My Flickr |
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elliott
Joined: 16 May 2011 Posts: 170
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Posted: Fri Nov 30, 2012 2:42 am Post subject: |
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elliott wrote:
The tools with the cheap ones on eBay are for removing the adapter from the body. I remove the clip from mine so they don't stay in the camera. I use a lens cap as a wrench to remove them from lenses. |
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hoanpham
Joined: 31 Jan 2011 Posts: 2575
Expire: 2015-01-18
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Posted: Fri Nov 30, 2012 6:30 am Post subject: |
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hoanpham wrote:
It's still too hard. I might dstroy the lens with force. _________________ La migliore cura di LBA � imparare una nuova lingua. Le meilleur rem�de de LBA est d'apprendre une nouvelle langue. La mejor cura del LBA es aprender una nueva lengua. |
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visualopsins
Joined: 05 Mar 2009 Posts: 10967 Location: California
Expire: 2025-04-11
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Posted: Fri Nov 30, 2012 6:50 am Post subject: |
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visualopsins wrote:
Keeping lens cool, warm only the adapter (so it expands) might help to free it...
A drop or two (only a drop or two) of penetrating or wintergreen oil on threads might help too.
Try leather work gloves to get strong (padded) grip? _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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hoanpham
Joined: 31 Jan 2011 Posts: 2575
Expire: 2015-01-18
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Posted: Fri Nov 30, 2012 7:52 am Post subject: |
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hoanpham wrote:
The previous owner had a super glue drop in it.
I try now to loosen the glue strength with pure acetone.
Anyone experience acetone use? like how long can i expect before the glue might take to break down?
That's a good idea to heat up the adapter. I will try to combine acetone treatment and solder iron. _________________ La migliore cura di LBA � imparare una nuova lingua. Le meilleur rem�de de LBA est d'apprendre une nouvelle langue. La mejor cura del LBA es aprender una nueva lengua. |
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philslizzy
Joined: 07 Aug 2012 Posts: 4744 Location: Cheshire, England
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Posted: Tue Dec 11, 2012 10:06 pm Post subject: |
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philslizzy wrote:
no acetone!! can harm acrylics in the lens and lens 'glue' |
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Lloydy
Joined: 02 Sep 2009 Posts: 7788 Location: Ironbridge. UK.
Expire: 2022-01-01
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Posted: Wed Dec 12, 2012 12:13 am Post subject: |
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Lloydy wrote:
I think you can buy a special Superglue solvent ?
I had a completely wrecked ME Super which I dismantled, basically to see how it worked. But I kept the front plate and lens mount completer and I have used that to force off a stuck M42 adapter from a lens. The lens is likely to be strong enough to take considerable force, and it doesn't matter if the camera front plate gets forced as I keep it for this kind of thing. But, I didn't do any damage to either of them when I forced the adapter off the lens and I had the camera front plate clamped in a vice and both hands on the lens - a Vivitar 28 if I remember rightly.
It's a useful bit of kit. I alsu use it as a drill jig to make a small hole for the Pentax locking pin.
( That picture is posed, I do take great care to keep bits of swarf out of the lens ) _________________ LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
My Flickr https://www.flickr.com/photos/mudplugga/
My ipernity -
http://www.ipernity.com/home/294337 |
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hoanpham
Joined: 31 Jan 2011 Posts: 2575
Expire: 2015-01-18
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Posted: Wed Dec 12, 2012 2:34 pm Post subject: |
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hoanpham wrote:
Update:
I gave up with acetone treatment. Tried 1/2 drop on the mount, repeat many times, but still not able to remove.
The lens+adapter is mounted on a defect pentax body, that had been ripped off for most parts, as opening tool to give a better grip.
I still hope that aceton treatment can slowly release the glue, but that too is risky if I spill on the glass.
It's still working fine when using with a pentax body, so I let it as-is.
---
That DRILL looks overkill for the task
May be I should try _________________ La migliore cura di LBA � imparare una nuova lingua. Le meilleur rem�de de LBA est d'apprendre une nouvelle langue. La mejor cura del LBA es aprender una nueva lengua. |
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visualopsins
Joined: 05 Mar 2009 Posts: 10967 Location: California
Expire: 2025-04-11
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Posted: Wed Dec 12, 2012 9:47 pm Post subject: |
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visualopsins wrote:
Is S-M-C or SMC Takumar with second tiny pin (separate from diaphragm pin) on mount? Adapter jammed by tiny pin?
(I sent your adapter ) _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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hoanpham
Joined: 31 Jan 2011 Posts: 2575
Expire: 2015-01-18
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Posted: Wed Dec 12, 2012 9:53 pm Post subject: |
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hoanpham wrote:
Thanks a lot for the adapter
No it's not the second pin that cause problem.
It's a pentax M42 adapter that had been glued into a m42 lens.
I drilled away the metal piece that lock the lens in place and it won't stuck in a pentax body.
All the effort is to undo the glue and turn the lens back in m42 state. _________________ La migliore cura di LBA � imparare una nuova lingua. Le meilleur rem�de de LBA est d'apprendre une nouvelle langue. La mejor cura del LBA es aprender una nueva lengua. |
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