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Nikkor-P 105 mm f 2.5 Version Two A?
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PostPosted: Sat Oct 08, 2011 5:20 am    Post subject: Nikkor-P 105 mm f 2.5 Version Two A? Reply with quote
I am curious if anyone has tips on how to open/remove the lens mount of this without disassembling the whole lens. This has the screwless mount.





Thank you.


PostPosted: Sat Oct 08, 2011 9:18 am    Post subject: Reply with quote
I looks to be a completly different mechanical design, but just in case, you maybe get an idea on how to open it...

http://forum.mflenses.com/tutorial-how-to-open-and-clean-a-nikkor-105-2-5-ais-t33023.html#1076083

i mean, if you want to clean the lens elements or something, try to start from the front

Tomas


PostPosted: Sat Oct 08, 2011 3:16 pm    Post subject: Reply with quote
tomasg wrote:
I looks to be a completly different mechanical design, but just in case, you maybe get an idea on how to open it...

http://forum.mflenses.com/tutorial-how-to-open-and-clean-a-nikkor-105-2-5-ais-t33023.html#1076083

i mean, if you want to clean the lens elements or something, try to start from the front

Tomas


Very nice and detailed tutorial , Thanks. I am more interested in the lens mount removal since its screwless. I am wondering if I have to start from the front of the lens and disassemble my way back to the lens mount, in order to remove the lens mount. How is this "screwless" mount held down? Very Happy


PostPosted: Sun Oct 09, 2011 12:53 pm    Post subject: Reply with quote
Hello,

maybe this answer from Nikon repair mailing list will help you.

http://tech.groups.yahoo.com/group/NikonRepair/message/939


PostPosted: Sun Oct 09, 2011 4:31 pm    Post subject: Reply with quote
Gurdie wrote:
Hello,

maybe this answer from Nikon repair mailing list will help you.

http://tech.groups.yahoo.com/group/NikonRepair/message/939


Thanks , I appreciate the link ,however it was for the 50mm . I have not found any info even after after extensive search-on the wild wild web.
This 105mm has only 1 screw on the aperture ring.-I will have to try taking that screw off and unscrewing the aperture ring which I have not tried yet. Very Happy .

Cheers


PostPosted: Sun Oct 09, 2011 5:57 pm    Post subject: Reply with quote
Are there screws on the inner black ring, i mean not on the mount, of course, but on the portruding black part, that s "inside" the mount, sorry for the poor english Rolling Eyes

Tomas


PostPosted: Sun Oct 09, 2011 8:49 pm    Post subject: Reply with quote
tomasg wrote:
Are there screws on the inner black ring, i mean not on the mount, of course, but on the portruding black part, that s "inside" the mount, sorry for the poor english Rolling Eyes

Tomas


Yes Thomas , I see three screws under the ears thats screwing it to the black baffle- ( the portruding black part, that s "inside" the mount- as you put it).



PostPosted: Wed Oct 12, 2011 1:33 pm    Post subject: Reply with quote
hmmm, yes those are the screws i was talking about, on an "normal" mount those usually fix the mount ring to the inner, black part, where there are the lens elements usually. I never had to remove them, to remove the mount. I don t think that they support the mount, i read somewhere that you have to be careful not to remove the portruding one (if there is one), becouse it retains a spring of the aperture mechanism. To me, the screw under it, on your picture on the body looks more promising.

Tomas


PostPosted: Wed Oct 12, 2011 9:50 pm    Post subject: Reply with quote
tomasg wrote:
hmmm, yes those are the screws i was talking about, on an "normal" mount those usually fix the mount ring to the inner, black part, where there are the lens elements usually. I never had to remove them, to remove the mount. I don t think that they support the mount, i read somewhere that you have to be careful not to remove the portruding one (if there is one), becouse it retains a spring of the aperture mechanism. To me, the screw under it, on your picture on the body looks more promising.

Tomas


Thanks for your help Tomas-I'll keep that in mind.


PostPosted: Mon Oct 17, 2011 1:23 pm    Post subject: Reply with quote
maybe this?

http://www.flickr.com/photos/patrickdylan/3282427005/in/set-72157613841209655/
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