Removing screw to M-adapter

echorec · 05/12/08, 12:15 AM

Just found a minty Summicron collapsible. The first one I have had with absolutely no cleaning marks, no haze, no nothing. The barrel is beautiful too.

That´s the good news. The little problem is that I can not remove the adapter and I want to use the lens on my LTM bodies. I have done this many times before with other lenses and it always works by mounting the lens on the (M) camera and then turning the lens in the right direction. But not this time.

Any tips/ideas?

Thanks,

Philippe D. · 05/12/08, 12:22 AM

Quote:

Originally Posted by echorec

The little problem is that I can not remove the adapter and I want to use the lens on my LTM bodies.

If it's glued, try aceton (drop by drop)
If it's just screwed (very) tight, try a little drop of WD-40.
Otherwise send it to me, i send you the adapter back.

robsteve · 05/12/08, 12:33 AM

Try putting a rear lens cap on and using that to remove the adapter.

As mentioned in the previous thread Leica would use some thread lock on lenses destined for a M. I think they were just clearing old stock this way.

luigi bertolotti · 05/12/08, 12:42 AM

Quote:

Originally Posted by echorec

Just found a minty Summicron collapsible. The first one I have had with absolutely no cleaning marks, no haze, no nothing. The barrel is beautiful too.

That´s the good news. The little problem is that I can not remove the adapter and I want to use the lens on my LTM bodies. I have done this many times before with other lenses and it always works by mounting the lens on the (M) camera and then turning the lens in the right direction. But not this time.

Any tips/ideas?

Thanks,

Ehm.. sure there IS a SM/BM adapter ? The Summicron coll. was sold also in BM

(sorry, maybe a stupid observation, but 15 years ago or so I made such an error with a Summarit 50 1,5...

)

echorec · 05/12/08, 01:04 AM

Thanks Gentlemen, much appreciated as always.

Philippe, your offer is very tempting but I don´t know...

Robsteve, the back cap trick does not work either. I think there is glue in here...

Your clearing stock theory seems to fit very well: It is a 1957 lens that came with a 1961 M3 (very clean too but not minty like the lens).

Luigi, thanks for the heads up but this one has the adapter. I have an M version too and they look a little different.

Best to you all,

jc_braconi · 05/12/08, 11:42 AM

Gunnar,
Sorry but, always bla bla bla.....post some picts !

echorec · 05/12/08, 12:21 PM

No problem JC:

jc_braconi · 05/12/08, 12:39 PM

Gunnar,
some picts of the rear of the lens/adapter 90° & 45° please.

luigi bertolotti · 05/12/08, 12:48 PM

Quote:

Originally Posted by jc_braconi

Gunnar,
some picts of the rear of the lens/adapter 90° & 45° please.

JC... do you notice something strange in the infinity position ? (I'm not sure, and not at home to verify...

)

jc_braconi · 05/12/08, 01:14 PM

Quote:

Originally Posted by luigi bertolotti

JC... do you notice something strange in the infinity position ? (I'm not sure, and not at home to verify...

)

Luigi,
LTM lenses infinity position stays at 1 oclock to be cleared from VIOOH & VIDOM viewfinder.
we have speak about this here some years ago.

echorec · 05/12/08, 04:40 PM

More pics:

Erik van Straten · 05/12/08, 07:35 PM

When it's glued, you're in big trouble. Lens and adapter can ofcourse be separated, but not without damage. In any case, bring it to a professional repairer. A professional reparer may have suitable instruments for the job.
Maybe it's better to leave it as it is and use it only as a M-mount lens. A collapsible lens is not as solidly constructed as a rigid.

brianv · 05/13/08, 01:52 AM

That is a beautiful, very late collapsible Summicron.

echorec · 05/13/08, 02:14 AM

Erik, yes you are right. I should be very careful or just leave as it is.

Brian, thanks, I agree, it looks very nice.

jc_braconi · 05/13/08, 10:18 AM

Gunnar,
have you got my PMs ?

echorec · 05/13/08, 02:01 PM

Hello JC, I saw them just now. Many thanks, I will try what you suggested.

Best regards,

jc_braconi · 05/13/08, 08:26 PM

Look again, please

echorec · 05/18/08, 09:01 PM

Update: The adapter is now off the lens thanks to several helpful, detailed and friendly PMs from JC.

Thanks a million!

Philippe D. · 05/18/08, 09:25 PM

Quote:

Originally Posted by echorec

The adapter is now off the lens thanks to several helpful, detailed and friendly PMs from JC.

Bravo !
But we are not smarter...

gvaliquette · 05/22/08, 01:36 AM

Quote:

Originally Posted by echorec

Update: The adapter is now off the lens thanks to several helpful, detailed and friendly PMs from JC

JC:

Is there any reason why these should be PMs? Why not share with all of us?

Guy

05/12/08, 12:15 AM	#1 (permalink)
echorec Erfahrener Benutzer Join Date: 03/01/07 Location: Stockholm Posts: 1,967	Removing screw to M-adapter Just found a minty Summicron collapsible. The first one I have had with absolutely no cleaning marks, no haze, no nothing. The barrel is beautiful too. That´s the good news. The little problem is that I can not remove the adapter and I want to use the lens on my LTM bodies. I have done this many times before with other lenses and it always works by mounting the lens on the (M) camera and then turning the lens in the right direction. But not this time. Any tips/ideas? Thanks, __________________ Gunnar

05/12/08, 12:33 AM	#3 (permalink)
robsteve Erfahrener Benutzer Join Date: 02/06/04 Posts: 2,022	Re: Removing screw to M-adapter Try putting a rear lens cap on and using that to remove the adapter. As mentioned in the previous thread Leica would use some thread lock on lenses destined for a M. I think they were just clearing old stock this way.

05/12/08, 01:04 AM	#5 (permalink)
echorec Erfahrener Benutzer Join Date: 03/01/07 Location: Stockholm Posts: 1,967	Re: Removing screw to M-adapter Thanks Gentlemen, much appreciated as always. Philippe, your offer is very tempting but I don´t know... Robsteve, the back cap trick does not work either. I think there is glue in here... Your clearing stock theory seems to fit very well: It is a 1957 lens that came with a 1961 M3 (very clean too but not minty like the lens). Luigi, thanks for the heads up but this one has the adapter. I have an M version too and they look a little different. Best to you all, __________________ Gunnar

05/12/08, 11:42 AM	#6 (permalink)
jc_braconi Erfahrener Benutzer Join Date: 03/20/04 Posts: 575	Re: Removing screw to M-adapter Gunnar, Sorry but, always bla bla bla.....post some picts ! __________________ regards JC jc_braconi @ LFI Gallery

05/12/08, 12:39 PM	#8 (permalink)
jc_braconi Erfahrener Benutzer Join Date: 03/20/04 Posts: 575	Re: Removing screw to M-adapter Gunnar, some picts of the rear of the lens/adapter 90° & 45° please. __________________ regards JC jc_braconi @ LFI Gallery

05/12/08, 07:35 PM	#12 (permalink)
Erik van Straten Benutzer Join Date: 04/28/08 Posts: 62	Re: Removing screw to M-adapter When it's glued, you're in big trouble. Lens and adapter can ofcourse be separated, but not without damage. In any case, bring it to a professional repairer. A professional reparer may have suitable instruments for the job. Maybe it's better to leave it as it is and use it only as a M-mount lens. A collapsible lens is not as solidly constructed as a rigid. Last edited by Erik van Straten : 05/12/08 at 07:40 PM.

05/13/08, 01:52 AM	#13 (permalink)
brianv Erfahrener Benutzer Join Date: 03/31/06 Posts: 165	Re: Removing screw to M-adapter That is a beautiful, very late collapsible Summicron.

05/13/08, 02:14 AM	#14 (permalink)
echorec Erfahrener Benutzer Join Date: 03/01/07 Location: Stockholm Posts: 1,967	Re: Removing screw to M-adapter Erik, yes you are right. I should be very careful or just leave as it is. Brian, thanks, I agree, it looks very nice. __________________ Gunnar

05/13/08, 10:18 AM	#15 (permalink)
jc_braconi Erfahrener Benutzer Join Date: 03/20/04 Posts: 575	Re: Removing screw to M-adapter Gunnar, have you got my PMs ? __________________ regards JC jc_braconi @ LFI Gallery

05/13/08, 02:01 PM	#16 (permalink)
echorec Erfahrener Benutzer Join Date: 03/01/07 Location: Stockholm Posts: 1,967	Re: Removing screw to M-adapter Hello JC, I saw them just now. Many thanks, I will try what you suggested. Best regards, __________________ Gunnar

05/13/08, 08:26 PM	#17 (permalink)
jc_braconi Erfahrener Benutzer Join Date: 03/20/04 Posts: 575	Re: Removing screw to M-adapter Look again, please __________________ regards JC jc_braconi @ LFI Gallery Last edited by jc_braconi : 05/13/08 at 08:33 PM.

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