Mikro-Forum

Foren => Mikroskopie-Forum => Thema gestartet von: kalleboy in Januar 08, 2017, 11:25:25 VORMITTAG

Titel: Objektive mit Iris Zeiss stecken ?
Beitrag von: kalleboy in Januar 08, 2017, 11:25:25 VORMITTAG
Carl Zeiss Jena Apochromat HI 100x/1.32, 160/ 0.17
Objektive mit Iris Zeiss
- The Iris seems stuck/jammed(stecken). It does not move how can I move it ?
- How does it function ?
- Operations manual ?
(https://www.mikroskopie-forum.de/pictures005/207453_6944299.jpg) (http://s162.photobucket.com/user/1231134/media/HI100_zpslbdoy52l.jpg.html)
Titel: Re: Objektive mit Iris Zeiss stecken ?
Beitrag von: timizas in Januar 08, 2017, 13:42:57 NACHMITTAGS
Hallo.
versucht?
(https://www.mikroskopie-forum.de/pictures005/207464_25557385.jpg)
Titel: Re: Objektive mit Iris Zeiss stecken ?
Beitrag von: JoachimHLD in Januar 08, 2017, 14:13:30 NACHMITTAGS
Hallo,
don't use WD40, it's creeping on the lenses too! so your lens would be trash.
Try to waem it slow up to 40°C or use some petroleum ether.
Good luck
Joachim
Titel: Re: Objektive mit Iris Zeiss stecken ?
Beitrag von: timizas in Januar 08, 2017, 14:29:25 NACHMITTAGS
Nicht auf der Innenseite!
Sehr wenig.
Unter dem Ring an der Objektive.
Titel: Re: Objektive mit Iris Zeiss stecken ?
Beitrag von: Klaus Herrmann in Januar 08, 2017, 14:41:55 NACHMITTAGS
Hello Niklas,

I would also recomend to try first to warm it up. WD 40 is very powerfull, but dangerous to optics

Edit: Hello Niklas,

a friend just called me and told me to ask you: this ring turns in two directions. Now it stands at one end. Can you please try to turn it in the other direction?
This ring moves a smal diapragm (Iris) inside the objetive so you can make darkfield-contrast in combination with a darkfieldcondensor.
Titel: Re: Objektive mit Iris Zeiss stecken ?
Beitrag von: kalleboy in Januar 08, 2017, 16:24:06 NACHMITTAGS
Does it have a complex james bond style Iris inside or what construction ?
- At what temperature *C does the lamination start to burn off ?
- Hair dryer used. Fingers crossed.
(https://www.mikroskopie-forum.de/pictures005/207480_3132301.jpg) (http://s162.photobucket.com/user/1231134/media/diagram_zpsfeypsoyt.jpg.html)
(https://www.mikroskopie-forum.de/pictures005/207480_48786293.jpg) (http://s162.photobucket.com/user/1231134/media/iris233_zpsmzoys0ag.jpg.html)
Titel: Re: Objektive mit Iris Zeiss stecken ?
Beitrag von: Klaus Herrmann in Januar 08, 2017, 16:29:53 NACHMITTAGS
ZitatDoes it have a complex james bond style Iris inside or what construction ?

Exactly! and this iris goes in two directions open and close. Now it stands at "close" you must go in the other direction!

Temperature of a hairdryer will not destroy the objective! ;) But it needs some time to soften the lubrication.