| View previous topic :: View next topic |
| Author |
Message |
br.sigit
Joined: 29 Oct 2010
Posts: 38
Location: Indonesia
|
 Posted: Tue Apr 19, 2011 3:47 am Post subject: Lens elements of Carl Zeiss Jena Biotar 75/1.5 fat model |
 |
|
br.sigit wrote:
Hello, i have Carl Zeiss Jena biotar 75/1.5 fat model with serial number 6xxxxxxx. There's many cleaning marks in the front element (maybe it affects picture result in softness). I have a plan to change this front element, but i just wondering to change it from the same lens (older) but with serial number 3xxxxxx.
Everyone, i need your information or suggestion whether i can change that front element. Thank you 
_________________
Cameras: Sony NEX 3N, Contax RTS II, M3, Bessa R2
Lenses: German and Japanese
Looking for: Pentacon 100/2.8 (front glass), Biotar 75 (front glass and aperture blades) |
|
| Back to top |
|
 |
luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
|
| Posted: Tue Apr 19, 2011 3:57 am Post subject: |
|
|
luisalegria wrote:
Whats wrong with the lens with serial number 3xxxxxxx ?
Don't ruin a lens if you don't have to.
Also, just cleaning marks on the front element should make little difference.
_________________
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. |
|
| Back to top |
|
|
br.sigit
Joined: 29 Oct 2010
Posts: 38
Location: Indonesia
|
| Posted: Tue Apr 19, 2011 4:14 am Post subject: |
|
|
br.sigit wrote:
| luisalegria wrote: |
Whats wrong with the lens with serial number 3xxxxxxx ?
Don't ruin a lens if you don't have to.
Also, just cleaning marks on the front element should make little difference. |
The lens with serial number 3xxxxxx is already for spare part only. There's 1 in ebay. If i win, i have plan to replace the front element (because lookslike better) and also to replace aperture blade (mine is without blade). Do you think i can replace the aperture blade too?
_________________
Cameras: Sony NEX 3N, Contax RTS II, M3, Bessa R2
Lenses: German and Japanese
Looking for: Pentacon 100/2.8 (front glass), Biotar 75 (front glass and aperture blades) |
|
| Back to top |
|
|
luisalegria
Joined: 07 Mar 2008
Posts: 6627
Location: San Francisco, USA
Expire: 2018-01-18
|
| Posted: Tue Apr 19, 2011 5:32 am Post subject: |
|
|
luisalegria wrote:
If the Biotar 3xxxxx is also a "fat" alu version, probably.
If not, who knows. Its a gamble.
_________________
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. |
|
| Back to top |
|
|
ZoneV
Joined: 09 Nov 2009
Posts: 1633
Location: Germany
Expire: 2011-12-02
|
| Posted: Tue Apr 19, 2011 6:46 am Post subject: |
|
|
ZoneV wrote:
| br.sigit wrote: |
... I have a plan to change this front element, but i just wondering to change it from the same lens (older) but with serial number 3xxxxxx.
Everyone, i need your information or suggestion whether i can change that front element... |
Please read my 2 comments here:
http://forum.mflenses.com/crazyness-limit-where-t37086.html
As far as I know from these magazin article (regarding Zeiss!) and the fact that in some older lenses some handwritten numbers are common, I would not recommend to swap lens elements between different lenses from same type.
I wrote my thoughts about the element changing a month ago - so my reccomendation is not too much influenced by biding on the same lens
_________________
Camera modification, repair and DIY - some links to look through: http://www.4photos.de/camera-diy/index-en.html
I AM A LENS NERD!
Epis, Elmaron, Emerald, Ernostar, Helioplan and Heidosmat.
Epiotar, Kameraobjektiv, Anastigmat, Epis, Meganast, Magnagon, Quinar, Culmigon, Novotrinast, Novflexar, Colorplan, Sekor, Kinon, Talon, Telemegor, Xenon, Xenar, Ultra, Ultra Star. Tessar, Janar, Visionar, Kiptar, Kipronar and Rotelar.
|
|
| Back to top |
|
|
exaklaus
Joined: 11 Aug 2009
Posts: 1633
Location: Niederrhein, Germany
Expire: 2011-12-02
|
| Posted: Tue Apr 19, 2011 6:49 am Post subject: |
|
|
exaklaus wrote:
Maybe possible, maybe not. Zeiss changed with some lenses the glass during production time. It is a gamble.
And maybe it is a gamble to remove the front glass of the 3xxxxx Biotar because of the messed up front ring, too.
Klaus
_________________
my Ebay auctions
Canon 5D II,
Fuji GW690III, Fuji G617, Fujifilm X-E1
Bessaflex TM
Tachihara 4"x5"
Summilux-R 1:1,4/50
Canon FD 85mm 1:1,2
Color-Heliar 75mm F2.5 SL
www.autoselbstfotografie.de
www.classic-cameras-and-lenses.de |
|
| Back to top |
|
|
br.sigit
Joined: 29 Oct 2010
Posts: 38
Location: Indonesia
|
| Posted: Tue Apr 19, 2011 11:05 am Post subject: |
|
|
br.sigit wrote:
Thank you. Maybe to replace lens elements is a gamble. But guys, how about to replace aperture blade from the same lens? Is it possible? My biotar 75 has no aperture blade.
_________________
Cameras: Sony NEX 3N, Contax RTS II, M3, Bessa R2
Lenses: German and Japanese
Looking for: Pentacon 100/2.8 (front glass), Biotar 75 (front glass and aperture blades) |
|
| Back to top |
|
|
exaklaus
Joined: 11 Aug 2009
Posts: 1633
Location: Niederrhein, Germany
Expire: 2011-12-02
|
| Posted: Tue Apr 19, 2011 12:00 pm Post subject: |
|
|
exaklaus wrote:
that should be possible.
Klaus
_________________
my Ebay auctions
Canon 5D II,
Fuji GW690III, Fuji G617, Fujifilm X-E1
Bessaflex TM
Tachihara 4"x5"
Summilux-R 1:1,4/50
Canon FD 85mm 1:1,2
Color-Heliar 75mm F2.5 SL
www.autoselbstfotografie.de
www.classic-cameras-and-lenses.de |
|
| Back to top |
|
|
ZoneV
Joined: 09 Nov 2009
Posts: 1633
Location: Germany
Expire: 2011-12-02
|
| Posted: Tue Apr 19, 2011 2:19 pm Post subject: |
|
|
ZoneV wrote:
| br.sigit wrote: |
| Thank you. Maybe to replace lens elements is a gamble. But guys, how about to replace aperture blade from the same lens? Is it possible? My biotar 75 has no aperture blade. |
Probably better exchange the complete optical system with iris?
_________________
Camera modification, repair and DIY - some links to look through: http://www.4photos.de/camera-diy/index-en.html
I AM A LENS NERD!
Epis, Elmaron, Emerald, Ernostar, Helioplan and Heidosmat.
Epiotar, Kameraobjektiv, Anastigmat, Epis, Meganast, Magnagon, Quinar, Culmigon, Novotrinast, Novflexar, Colorplan, Sekor, Kinon, Talon, Telemegor, Xenon, Xenar, Ultra, Ultra Star. Tessar, Janar, Visionar, Kiptar, Kipronar and Rotelar.
|
|
| Back to top |
|
|
estudleon
Joined: 15 May 2008
Posts: 3754
Location: Argentina
|
| Posted: Tue Apr 19, 2011 2:34 pm Post subject: |
|
|
estudleon wrote:
| ZoneV wrote: |
| br.sigit wrote: |
| Thank you. Maybe to replace lens elements is a gamble. But guys, how about to replace aperture blade from the same lens? Is it possible? My biotar 75 has no aperture blade. |
Probably better exchange the complete optical system with iris? |
+1,
If it's possible, more economy of efforts, and better job
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. |
|
| Back to top |
|
|
br.sigit
Joined: 29 Oct 2010
Posts: 38
Location: Indonesia
|
| Posted: Wed Apr 20, 2011 1:37 pm Post subject: |
|
|
br.sigit wrote:
yes, i'd love to change complete optical system with iris. But there's no available one in ebay right now. only available for spare part only or incomplete optical system .
_________________
Cameras: Sony NEX 3N, Contax RTS II, M3, Bessa R2
Lenses: German and Japanese
Looking for: Pentacon 100/2.8 (front glass), Biotar 75 (front glass and aperture blades) |
|
| Back to top |
|
|
|
|
Search
Memberlist
Register
Profile
Log in to check your private messages
Log in
