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Kriengsak
Joined: 22 Dec 2008
Posts: 17
Location: Abu Dhabi, UAE
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 Posted: Sat Feb 07, 2009 7:16 am Post subject: CZJ 3.5/135 adjusted to focus infinity for f-mount |
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Kriengsak wrote:
Basically, this lens is M42 which is 1 mm register difference for F-mount camera and when we use adapter M42-Nikon, it becomes about 2 mm difference.
Fortunately, CZJ 3.5/135 have barrel thread length enough for us to re-adjust infinity focusing and reach this 2 mm difference.
I have done my lens successfully.
Last edited by Kriengsak on Tue Feb 10, 2009 9:44 am; edited 1 time in total |
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luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Sat Feb 07, 2009 8:26 am Post subject: |
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luisalegria wrote:
Can you show how you did it ?
I am collecting info on this because it is also useful for adjusting Exakta-mount lenses.
_________________
I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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Kriengsak
Joined: 22 Dec 2008
Posts: 17
Location: Abu Dhabi, UAE
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| Posted: Sat Feb 07, 2009 9:47 am Post subject: |
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Kriengsak wrote:
Ok,
This is only a very brief one, not an every step by step.
Put your internal focusing barrel in this position
And your external focusing barrel in this position that you can see a bolt head at 7 o’clock and indicator pointed at infinity position
Turn external focusing barrel anti-clockwise into internal barrel from what you can see bolt head at 7 o’clock to pass the first 6 o’clock
Then one round more and exactly stop at second 6 o’clock
You can now fix 2 focusing guides.
That is all, and at the end you could see rear element hood intruding 1 mm from rear cap because the lens element was already shifted 2 mm.
Don’t dismantle you lens, if you never have done it before. It is your own risk. |
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estudleon
Joined: 15 May 2008
Posts: 3754
Location: Argentina
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| Posted: Sat Feb 07, 2009 10:22 am Post subject: |
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estudleon wrote:
Very Usefull. Thanks.
We can try this with others M42. We can lost close focus but minimun.
Rino.
_________________
Konica 2,8/100
CZJ: 4/20, 2,4/35, 1,8/50 aus jena, 3,5/135MC, Pentacon 1,8/50
Pentax S-M-C-1,4/50
Helios 44-3
Mamiya 2,8/135
Misc. : jupiter 9
Stuff used:
A) SRL
Alpa 10 D - kern macro Switar 1,9/50 -black, Kilffit apochromat 2/100.
Asahi pentax spotmatic super takumar 1,4/50
Contaflex super B tessar 2,8/50 Pro-tessar 115
Leica R3 electronic summicron 2/50 elmarit 2,8/35
Konica Autoreflex 3 (2 black and chrome one), TC, T4. 2,8/24, 3,5/28 not MC and MC, 1,8/40, 1,4/50, 1,7/50 MC and not MC, 1,8/85, 3,2/135, 3,5/135, 4/200
Minolta XG9 2,8/35, 2/45, 3,5/135
Nikkormat FTn 1,4/50, 2,8/135
Fujica ST 801, 605, 705n. 3,5/19, 1,4/50, 1,8/55, 4/85, 3,5/135.
Praktica MTL 5 and a lot of M42 lenses.
Voigtlander. Bessamatic m, bessamatix de luxe, bessamatic cs, ultramatic and ultramatic cs.
Skoparex 3,5/35, skopagon 2/40, skopar 2,8/50, skopar X 2,8/50, super lanthar (out of catalogue) 2,8/50, dinarex 3,4/90, dinarex 4,8/100, super dinarex 4/135, super dinarex 4/200, zoomar 2,8/36-83, portrait lens 0, 1 and 2. Curtagon 4/28 and 2,8/35
Canon AV1, 1,8/50
Rolleiflex SL35 and SL35 E. 2,8/35 angulon, 2,8/35 distagon, 1,4/55 rolleinar, 1,8/50 planar, 4/135 tessar, 2,8/135 rolleinar, x2 rollei, M42 to rollei adap.
Etc.
RF
Yashica Minister III
Voightlander Vito, vitomatic I, Vito C, etc.
Leica M. M2, M3 (d.s.) and M4. Schenider 3,4/21, 2/35 summaron 2,8/35 (with eyes). Summicron 2/35 (8 elements with eyes), 2/35 chrome, 2/35 black, 1,4/35 pre asph and aspheric - old -, 2/40 summicron, 2,8/50 elmar, 2/50 7 elements, 2/50 DR, 2/50 - minolta version, 1,4/50 summilux 1966 version, 1,4/75 summilux, 2/90 large version, 2/90 reduced version of 1987, 2,8/90 elmarit large version, 4/135 elmar. |
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Kriengsak
Joined: 22 Dec 2008
Posts: 17
Location: Abu Dhabi, UAE
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| Posted: Sat Feb 07, 2009 10:36 am Post subject: |
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Kriengsak wrote:
| estudleon wrote: |
Very Usefull. Thanks.
We can try this with others M42. We can lost close focus but minimun.
Rino. |
This is for CZJ sonnar 3.5/135 and to adjust for f-mount camera only.
Other M42 lens have its own mechanism and mostly impossible to shift infinity focus.
For example CZJ tessar 2.8/50, you have to drilled and fix a new crew at internal barrel at precisely new position in order to focus infinity for different mount. |
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no-X
Joined: 19 Jul 2008
Posts: 2495
Location: Budejky, Czech Republic
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| Posted: Sat Feb 07, 2009 10:39 am Post subject: |
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no-X wrote:
It should be possible at least on Jupiter 37A 135/3.5 too, because I have one copy for sale, which was adjusted in similar way by its previous owner:
http://forum.mflenses.com/some-m42-lenses-for-sale-jupiter-37a-added-t14292.html
_________________
(almost) complete list of Helios lenses |
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Kriengsak
Joined: 22 Dec 2008
Posts: 17
Location: Abu Dhabi, UAE
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| Posted: Sat Feb 07, 2009 10:43 am Post subject: |
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Kriengsak wrote:
Yes, exactly
becuase J 37A is the copy of CZJ sonnar 3.5/135 by Russian company after WWII
Last edited by Kriengsak on Sat Feb 07, 2009 10:44 am; edited 1 time in total |
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estudleon
Joined: 15 May 2008
Posts: 3754
Location: Argentina
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| Posted: Sat Feb 07, 2009 10:44 am Post subject: |
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estudleon wrote:
Yes. But your job with the 135 is very usefull because it´s a medium to long tele, and with the teles the infinito in many times isn't in focus with the hyperfocal if you pic a near subject.
So focus infin. can be necesary.
With shorter focals the DOF can do the infin. in focus.
Thanks again. Rino.
_________________
Konica 2,8/100
CZJ: 4/20, 2,4/35, 1,8/50 aus jena, 3,5/135MC, Pentacon 1,8/50
Pentax S-M-C-1,4/50
Helios 44-3
Mamiya 2,8/135
Misc. : jupiter 9
Stuff used:
A) SRL
Alpa 10 D - kern macro Switar 1,9/50 -black, Kilffit apochromat 2/100.
Asahi pentax spotmatic super takumar 1,4/50
Contaflex super B tessar 2,8/50 Pro-tessar 115
Leica R3 electronic summicron 2/50 elmarit 2,8/35
Konica Autoreflex 3 (2 black and chrome one), TC, T4. 2,8/24, 3,5/28 not MC and MC, 1,8/40, 1,4/50, 1,7/50 MC and not MC, 1,8/85, 3,2/135, 3,5/135, 4/200
Minolta XG9 2,8/35, 2/45, 3,5/135
Nikkormat FTn 1,4/50, 2,8/135
Fujica ST 801, 605, 705n. 3,5/19, 1,4/50, 1,8/55, 4/85, 3,5/135.
Praktica MTL 5 and a lot of M42 lenses.
Voigtlander. Bessamatic m, bessamatix de luxe, bessamatic cs, ultramatic and ultramatic cs.
Skoparex 3,5/35, skopagon 2/40, skopar 2,8/50, skopar X 2,8/50, super lanthar (out of catalogue) 2,8/50, dinarex 3,4/90, dinarex 4,8/100, super dinarex 4/135, super dinarex 4/200, zoomar 2,8/36-83, portrait lens 0, 1 and 2. Curtagon 4/28 and 2,8/35
Canon AV1, 1,8/50
Rolleiflex SL35 and SL35 E. 2,8/35 angulon, 2,8/35 distagon, 1,4/55 rolleinar, 1,8/50 planar, 4/135 tessar, 2,8/135 rolleinar, x2 rollei, M42 to rollei adap.
Etc.
RF
Yashica Minister III
Voightlander Vito, vitomatic I, Vito C, etc.
Leica M. M2, M3 (d.s.) and M4. Schenider 3,4/21, 2/35 summaron 2,8/35 (with eyes). Summicron 2/35 (8 elements with eyes), 2/35 chrome, 2/35 black, 1,4/35 pre asph and aspheric - old -, 2/40 summicron, 2,8/50 elmar, 2/50 7 elements, 2/50 DR, 2/50 - minolta version, 1,4/50 summilux 1966 version, 1,4/75 summilux, 2/90 large version, 2/90 reduced version of 1987, 2,8/90 elmarit large version, 4/135 elmar. |
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Kriengsak
Joined: 22 Dec 2008
Posts: 17
Location: Abu Dhabi, UAE
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| Posted: Sat Feb 07, 2009 10:55 am Post subject: |
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Kriengsak wrote:
Zeiss Biotar 75/1.5 is another one we can adjust.
http://forum.mflenses.com/adjusting-infinity-on-zeiss-biotar-75-1-5-t11692.html |
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estudleon
Joined: 15 May 2008
Posts: 3754
Location: Argentina
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| Posted: Sat Feb 07, 2009 11:05 am Post subject: |
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estudleon wrote:
And we can use ours cheaps 300/400 mm in M42 over the F mount!!!
Did you think about royalties? 
Rino.
_________________
Konica 2,8/100
CZJ: 4/20, 2,4/35, 1,8/50 aus jena, 3,5/135MC, Pentacon 1,8/50
Pentax S-M-C-1,4/50
Helios 44-3
Mamiya 2,8/135
Misc. : jupiter 9
Stuff used:
A) SRL
Alpa 10 D - kern macro Switar 1,9/50 -black, Kilffit apochromat 2/100.
Asahi pentax spotmatic super takumar 1,4/50
Contaflex super B tessar 2,8/50 Pro-tessar 115
Leica R3 electronic summicron 2/50 elmarit 2,8/35
Konica Autoreflex 3 (2 black and chrome one), TC, T4. 2,8/24, 3,5/28 not MC and MC, 1,8/40, 1,4/50, 1,7/50 MC and not MC, 1,8/85, 3,2/135, 3,5/135, 4/200
Minolta XG9 2,8/35, 2/45, 3,5/135
Nikkormat FTn 1,4/50, 2,8/135
Fujica ST 801, 605, 705n. 3,5/19, 1,4/50, 1,8/55, 4/85, 3,5/135.
Praktica MTL 5 and a lot of M42 lenses.
Voigtlander. Bessamatic m, bessamatix de luxe, bessamatic cs, ultramatic and ultramatic cs.
Skoparex 3,5/35, skopagon 2/40, skopar 2,8/50, skopar X 2,8/50, super lanthar (out of catalogue) 2,8/50, dinarex 3,4/90, dinarex 4,8/100, super dinarex 4/135, super dinarex 4/200, zoomar 2,8/36-83, portrait lens 0, 1 and 2. Curtagon 4/28 and 2,8/35
Canon AV1, 1,8/50
Rolleiflex SL35 and SL35 E. 2,8/35 angulon, 2,8/35 distagon, 1,4/55 rolleinar, 1,8/50 planar, 4/135 tessar, 2,8/135 rolleinar, x2 rollei, M42 to rollei adap.
Etc.
RF
Yashica Minister III
Voightlander Vito, vitomatic I, Vito C, etc.
Leica M. M2, M3 (d.s.) and M4. Schenider 3,4/21, 2/35 summaron 2,8/35 (with eyes). Summicron 2/35 (8 elements with eyes), 2/35 chrome, 2/35 black, 1,4/35 pre asph and aspheric - old -, 2/40 summicron, 2,8/50 elmar, 2/50 7 elements, 2/50 DR, 2/50 - minolta version, 1,4/50 summilux 1966 version, 1,4/75 summilux, 2/90 large version, 2/90 reduced version of 1987, 2,8/90 elmarit large version, 4/135 elmar. |
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sichko
Joined: 20 Jun 2008
Posts: 2475
Location: South West UK
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| Posted: Sat Feb 07, 2009 12:56 pm Post subject: |
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sichko wrote:
| Kriengsak wrote: |
Yes, exactly
becuase J 37A is the copy of CZJ sonnar 3.5/135 by Russian company after WWII |
The J37A may be an optical copy of the CZJ 3.5/35 but it's not a mechanical copy. The arrangement of the two pairs of helicoids in the two lenses is very different. I don't say that it's not possible to carry out a modification similar to the CZJ described. However it's not necessary. All you have to do is remove (3 screws) the M42 mount and replace it with an F mount which is 1 mm thinner.
_________________
John |
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Kriengsak
Joined: 22 Dec 2008
Posts: 17
Location: Abu Dhabi, UAE
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| Posted: Sat Feb 07, 2009 1:21 pm Post subject: |
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Kriengsak wrote:
| sichko wrote: |
| Kriengsak wrote: |
Yes, exactly
becuase J 37A is the copy of CZJ sonnar 3.5/135 by Russian company after WWII |
The J37A may be an optical copy of the CZJ 3.5/35 but it's not a mechanical copy. The arrangement of the two pairs of helicoids in the two lenses is very different. I don't say that it's not possible to carry out a modification similar to the CZJ described. However it's not necessary. All you have to do is remove (3 screws) the M42 mount and replace it with an F mount which is 1 mm thinner. |
For J-37A, I can confirm again when I receive my first J-37A which keep me waiting for 1 month and 3 weeks and still not yet arrived. 
By the way, J-37A can simply replace rear mount with adapter T2-Nikon to achieve infinity.
http://forum.mflenses.com/soviet-lens-a-mount-t4491,start,15.html |
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horvlas
Joined: 30 Dec 2008
Posts: 202
Location: Budapest, Hungary
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| Posted: Sat Feb 07, 2009 2:11 pm Post subject: |
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horvlas wrote:
And what will be the new closest focus point after shifting? The original for CZJ 3.5/135 is about 1m. |
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Orio
Joined: 24 Feb 2007
Posts: 29545
Location: West Emilia
Expire: 2012-12-04
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| Posted: Sat Feb 07, 2009 2:26 pm Post subject: |
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Orio wrote:
The M42 mount of the Jupiter 37 can be unscrewed and replaced by a F mount - some Jupiters were commercialized already with this modification.
The same goes for other soviet lenses like Tair-11A
So no need to mess with helicoids 
_________________
Orio, Administrator
T*
NE CEDE MALIS AUDENTIOR ITO
Ferrania film is reborn! http://www.filmferrania.it/
Support the Ornano film chemicals company and help them survive!
http://forum.mflenses.com/ornano-chemical-products-t55525.html |
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Kriengsak
Joined: 22 Dec 2008
Posts: 17
Location: Abu Dhabi, UAE
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| Posted: Sat Feb 07, 2009 2:37 pm Post subject: |
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Kriengsak wrote:
| horvlas wrote: |
| And what will be the new closest focus point after shifting? The original for CZJ 3.5/135 is about 1m. |
The closest adjustment can shift very deep that rear cap cannot close because spring lever protruding over mounting support.
So, turn 13 hours anticlockwise from 7 o'clock will give proper infinity focus for F-mount.
If test shot not achieve infinity yet, start at 7:30 and 13:30 hours turn anti-clock.
If test shot is over infinity, start at 6:30 and 12:30 hours turn.
This is my today test shot, the distance is around 1 km from object, so luckily I don't have to re-adjust my lens again.
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