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DeCarabas
Joined: 29 Jan 2017 Posts: 6
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Posted: Sun Jan 29, 2017 4:41 am Post subject: Carl Zeiss Pancolar 50mm/f1.8 Zebra aperture access problems |
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DeCarabas wrote:
Hi,
first of, I'm absolutely new here, so I hope this is the right forum etc. :)
I have a CZJ Pancolar 50mm/f1.8 Zebra, fairly beat up, and I am want to get front access to the aperture in order to give it a good cleaning. While rear access is trivial, I'm struggling to figure out how to access the front.
So far I have tried:
- Spanner wrench. I get the front element, but there's still more glass between me and the aperture then, and I found no obvious way to proceed.
- Seeing that other CZJ lenses have more access hidden behind name plate, I tried rubber wrench to remove it. No luck.
- Removing the back and seeing if there is some obvious-although-obscure way of releasing the front elements. That was a long shot, and as expected, the answer is "no".
What is the access method so that I can remove all glass in front of the aperture? Is there actually something behind the front nameplate afterall?
This is the front of the lens: http://imgur.com/a/8xXi0 |
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tomasg
Joined: 01 Nov 2009 Posts: 1135
Expire: 2014-04-28
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Posted: Sun Jan 29, 2017 9:03 am Post subject: |
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tomasg wrote:
Not the same lens, but are you sure you can t go further after removing the first lens from the front?
Take a look at around 6.20 min
https://www.youtube.com/watch?v=n5GMEHeDwn8 |
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DeCarabas
Joined: 29 Jan 2017 Posts: 6
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Posted: Sun Jan 29, 2017 10:21 pm Post subject: |
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DeCarabas wrote:
Yeah, I've seen that video, but the front is very different. It is not clear to me at all what holds the second glass element, but there are no dots for a spanner wrench -- after I remove the front element, the inner wall goes straight "down" (along the axis of the lens).
The lens is pretty beat up tho, so the name plate might be the way, and just needs a lot more force. Before going drastic brute force path, I feel like I should have some confirmation:) |
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inombrable
Joined: 20 Mar 2012 Posts: 545 Location: Salamanca, Mexico
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Posted: Wed Feb 01, 2017 2:18 am Post subject: |
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inombrable wrote:
Posting pictures of your lens might help _________________ -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
DSLR: Canon 5D, Nikon D200
SLR: Alpa 9d, Voigtlander VSL3E, Contax D
Medium Format: Hasselblad 500 EL/M, Praktisix, Rolleiflex standar 621
Rangefinder: Contax II, Contax III, Leica M2, Leica M4, Leica IIC, Nikon S2
M42:CZJ Flektogon 20 f/2.8, CZJ Flektogon 25 f/4, CZJ Flektogon 35 f/2.4, Color Skoparex 35 f/2.8, CZJ Pancolar 50 f/1.8, Super takumar 50 f/1.4, Meyer Primoplan 58 f/1.9, CZJ Tessar 50 f/2.8 alu, Jupiter 9 MC, Super Takumar 105 f/2.5, SMC Takumar 135 f/2.5, CZJ Sonnar 135 f/3.5 MC, CZJ Sonnar 135 f/3.5 Zebra, Super takumar 200 f/3.5
Nikon mount: Nippon kogaku Nikkor-N Auto 24 f/2.8, Nikon micro Nikkor 55 f/2.8, Kiron 105 f/2.8 macro.
C/Y: Planar 50 f/1.4, Yashica ML 50 f/1.4, Planar 85 f/1.4.
M39: Mir-1 Grand Prix Brussels, Helios 44 13 blades, Jupiter 11
Rangefinder: CZJ Biogon 3.5cm f/2.8, Sonnar 50 f/1.5, Sonnar 50 f/2, Nikkor-S 5 cm f/1.4, Summicron 50 f/2 DR, Summicron 50 f/2 collapsible, Summicron 35 f/2 V3. Jupiter 12, Jupiter 8, Jupiter 9, Elmar 90 f/4.
Canon EF: Voigtlander APO-Lanthar 90 f/3.5 SL-II
Exakta: Biotar 58 f/2
Adaptall: 103A, 46A, 19AH, 55B
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DeCarabas
Joined: 29 Jan 2017 Posts: 6
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Posted: Sat Feb 04, 2017 7:30 pm Post subject: |
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DeCarabas wrote:
I'm sorry, I realize now the imgur picture in the first post was not terribly descriptive of the lens as a whole:) Here is a more holistic view of the Pancolar:
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Lloydy
Joined: 02 Sep 2009 Posts: 7785 Location: Ironbridge. UK.
Expire: 2022-01-01
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Posted: Sat Feb 04, 2017 9:07 pm Post subject: |
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Lloydy wrote:
I think.....the front just screws off. Grip the aperture ring in one hand and try to unscrew the front. A lot of Zeiss lenses come apart this way, and they are only hand tight.
Behind that, the glass is removed with a lens spanner in the slots.
_________________ 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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DeCarabas
Joined: 29 Jan 2017 Posts: 6
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Posted: Sat Feb 04, 2017 9:48 pm Post subject: |
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DeCarabas wrote:
You're absolutely right, thank you so much! Access from here on looks trivial. This also explains some of the damage on the lens body (not in picture) -- it looks like marks from an over-tight heavy duty vise when someone first tried to unscrew this.
Just for posterity, since this forum is such a wonderful resource, this is what it looks like after unscrewing the front. It does not remove the whole front element, but it does remove the front name plate which covers the further access.
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