Search found 112 matches

by Leitzcycler
Mon Jan 18, 2021 8:00 pm
Forum: Miscellaneous
Topic: Mental struggles and microscopy
Replies: 14
Views: 255

Re: Mental struggles and microscopy

I think there are a lot of scientists who feel nature and research is more interesting than the company of other people. I say company, as what people do or what they feel and think may still be interesting as such. I would call this state of personality introvertism. I share myself your feelings an...
by Leitzcycler
Tue Jan 12, 2021 7:42 pm
Forum: Camera systems and imaging
Topic: Are photo eyepieces needed?
Replies: 10
Views: 530

Re: Are photo eyepieces needed?

Thanks. Maybe so. The adapter is rather heavy, robust and made of steel, which gives me the impression it is intended to be used directly and not on top of the tower (red part). While the lower phototube I have is very light and made of aluminium...
by Leitzcycler
Tue Jan 12, 2021 8:44 am
Forum: Camera systems and imaging
Topic: Are photo eyepieces needed?
Replies: 10
Views: 530

Re: Are photo eyepieces needed?

Thanks. I know and I have also the phototube which fits into the trinocular head and the eyepiece can be fitted inside the tube. I have no upper parts yet, however planning to make. What I mean is that the adapter has c-mount thread and a digicamera can be inserted directly. I assume this is how it ...
by Leitzcycler
Tue Jan 12, 2021 7:48 am
Forum: Camera systems and imaging
Topic: Are photo eyepieces needed?
Replies: 10
Views: 530

Re: Are photo eyepieces needed?

This camera adapter came with my Leitz Orthoplan. It has no lens inside at all or any place for attaching an eyepiece. If the Orthoplan system needs a projection lens/phototube with an eyepiece for proper image correction - as far as I have understood right - why this adapter has been manufactured i...
by Leitzcycler
Sun Jan 03, 2021 6:00 pm
Forum: Microscopes and optics
Topic: Olympus eyepiece markings?
Replies: 3
Views: 224

Re: Olympus eyepiece markings?

And one more question:

6. + inside a circle (also white, engraved)
by Leitzcycler
Sun Jan 03, 2021 8:48 am
Forum: Microscopes and optics
Topic: Olympus eyepiece markings?
Replies: 3
Views: 224

Olympus eyepiece markings?

What does mean in Olympus eyepiece the following?

1. P = polarization or plan?
2. micro = for microscope???
3. FK = photo compensation?
4. Bi = for binocular head??
5. a white engraved square, on the left when 10x magnification mark is down
by Leitzcycler
Thu Dec 31, 2020 2:23 pm
Forum: Beginner's corner
Topic: Need help choosing a microscope
Replies: 6
Views: 232

Re: Need help choosing a microscope

What is not always understood is that a compound microscope itself is only a part of the job. The other part includes more or less complicated sample preparation which often needs special knowledge and especially patience. When I was a child and got a cheap microscope as a christmas present, there w...
by Leitzcycler
Mon Dec 28, 2020 8:16 pm
Forum: Microscopes and optics
Topic: Zeiss Citoval 2
Replies: 31
Views: 770

Re: Zeiss Citoval 2

I don't know about Citoval, but how about this one https://www.ebay.com/itm/VTG-Soviet-Era-LOMO-Binocular-Stereo-Microscope-USSR-MBC-MBS-1/124247339534?hash=item1cedb7f20e:g:ojUAAOSw3JhfAKfV I have a one just like this and I am quite satisfied. Is it possible for you to go and see. It is in Kiev, ri...
by Leitzcycler
Sat Dec 26, 2020 1:12 pm
Forum: Miscellaneous
Topic: ok I'll do it
Replies: 5
Views: 355

Re: ok I'll do it

Thank you and Merry Christmas and Better New Year for all. Thank you all for valuable contribution here!

Not that I didn't want to add my wishes here, but maybe I was too shy to do that. But now it is done. Would this be a reason for the volume?
by Leitzcycler
Sat Dec 26, 2020 7:01 am
Forum: Microscopes and optics
Topic: Leitz Orthoplan focus block disassembly docuemtation
Replies: 14
Views: 1190

Re: Leitz Orthoplan focus block disassembly docuemtation

Thank you so much for valuable information. I saved all these instruction for future and hope I would never need it.

What is the construction of a collimator? Is it possible to build it at home? Could e.g. a laser pointer used for this purpose?
by Leitzcycler
Fri Dec 25, 2020 7:21 pm
Forum: My microscope
Topic: Olympus FHT
Replies: 8
Views: 1569

Re: Olympus FHT

Almost done: focusing mechanism, stage, objective turret, everything has been disassembled, cleaned and relubricated. Only the ocular head is waiting for service. The job has been quite easy and straightforward and I really enjoy working with all those fine little parts which has been very well made...
by Leitzcycler
Sun Dec 20, 2020 6:51 pm
Forum: Microscopes and optics
Topic: Leitz head needing some work
Replies: 9
Views: 359

Re: Leitz head needing some work

Look information here:
viewtopic.php?f=5&t=9096
by Leitzcycler
Mon Nov 30, 2020 2:22 pm
Forum: Microscopes and optics
Topic: Leitz microscopes - help needed!
Replies: 6
Views: 466

Re: Leitz microscopes - help needed!

In the orthoplan (which is indeen 170mm) both 160mm and 170mm objectives work well, athought some of the parfocality is lost. So changing objectives you need to refocus more. I don't know about the phototube but I think you will find out when you try. I have also another trinocular head, which is bl...
by Leitzcycler
Fri Nov 27, 2020 5:38 pm
Forum: Microscopes and optics
Topic: Leitz microscopes - help needed!
Replies: 6
Views: 466

Re: Leitz microscopes - help needed!

The coarse focusing feels a bit tight - but not knowing how it should feel it is difficult to judge if something needs to be done or not. Hard to know what you mean by tight. But trying to get something to compare with: When I hold the coarse focus knob between my thumb and forefinger, it is rather...
by Leitzcycler
Fri Nov 27, 2020 5:17 pm
Forum: Microscopes and optics
Topic: Leitz microscopes - help needed!
Replies: 6
Views: 466

Re: Leitz microscopes - help needed!

You are welcome! I have not been able to locate a manufacture year. See the list of Leitz serial numbers and years here: https://sites.chem.utoronto.ca/chemistry/jbj_archive/Optical%20Equipment/Chemistry%20Library/Leitz%20Microscope%20Serial%20Numbers.pdf You will find the serial number on the top o...
by Leitzcycler
Mon Nov 23, 2020 9:01 pm
Forum: My microscope
Topic: Olympus FHT
Replies: 8
Views: 1569

Re: Olympus FHT

Thank you so much! Your help is highly appreciated. This indeed explains the existence of the two stoppers: I was wondering what are they for.

It will take some time and effort to take off the remains of the broken fixing screw and clean the threads :?
by Leitzcycler
Mon Nov 23, 2020 8:28 pm
Forum: My microscope
Topic: Olympus FHT
Replies: 8
Views: 1569

Re: Olympus FHT

Thank you so much for your kind response and photos! I started the dismantling and cleaning. Whant I found is that Olympus grease tend to form some very hard stuff (polymerize?) rather than just getting more stiff. The objective stage appears to be rotatable - at least to some extent - and this is c...
by Leitzcycler
Mon Nov 16, 2020 12:46 pm
Forum: My microscope
Topic: Olympus FHT
Replies: 8
Views: 1569

Olympus FHT

I am not absolutely sure if this was a rational purchase… Anyway, Olympus FH is the most cute microscope I have ever seen. So when I saw it in Ebay, I just didn’t have any other choice. My offer 150USD was accepted, however the shipping from US to Finland doubled the costs. And, what is more, almost...
by Leitzcycler
Tue Oct 27, 2020 7:31 am
Forum: Illumination Techniques
Topic: Problems with flourescence picture on ZEISS Axiovert 25
Replies: 10
Views: 1580

Re: Problems with flourescence picture on ZEISS Axiovert 25

interference filters (and the mirror of course) do have a limited shelf life even if securely wrapped and tucked away in the depth of a drawer. Several years, not decades. I am curious: what is the physical nature of the process of deterioration? What is the structure and composition of the mirror ...
by Leitzcycler
Sat Oct 03, 2020 6:56 am
Forum: Microscopes and optics
Topic: What is this Orthoplan accessory
Replies: 2
Views: 340

What is this Orthoplan accessory

What is this item for? It is like variotube, however lacking the magnification changer knob. The tube in the center is plugged, and it doesn't look like phototube.

https://www.ebay.de/itm/Leitz-Basteltei ... OSwn0xfd2w~
by Leitzcycler
Tue Aug 11, 2020 1:44 pm
Forum: Camera systems and imaging
Topic: For fluorescence microscopy, specialized microscope camera or DSLR?
Replies: 8
Views: 6044

Re: For fluorescence microscopy, specialized microscope camera or DSLR?

The Rising cam offers 20 MP and is the best dedicated camera I have tested so far - its available on Ebay for about $800. Could you further specify the model of the best camera as there seem to bee several different models of Rising cam? I have also the problem of selecting a fluorescence/multi pur...
by Leitzcycler
Sat Aug 01, 2020 1:46 pm
Forum: Microscopes and optics
Topic: A Cooke, Troughton & Simms
Replies: 53
Views: 3793

Re: A Cooke, Troughton & Simms

Here is a beautiful CTS Universal. Love the , probably Mahogany , armrests.
This is something... Really very elegant!
I would very much like to replace the plastic hand rests of my Orthoplan with wooden lacquered hands rests like this. :)
by Leitzcycler
Fri Jul 31, 2020 6:19 am
Forum: Microscopes and optics
Topic: CHA Tension Adjustment
Replies: 10
Views: 1372

Re: CHA Tension Adjustment

I have extremely limited experience with Olympus microscopes and never used your model. However, would this be of some help?
viewtopic.php?f=5&t=8551&p=74051&hilit= ... ion#p74051
by Leitzcycler
Thu Jul 30, 2020 5:27 pm
Forum: Introduce yourself
Topic: Hello from Germany
Replies: 8
Views: 1138

Re: Hello from Germany

In what board should I ask my question: "My microscope"? "Beginner’s corner"? or "Microscopes and optics"?
I would select "Microscopes and optics"
by Leitzcycler
Thu Jul 30, 2020 2:57 pm
Forum: Introduce yourself
Topic: Hello from Germany
Replies: 8
Views: 1138

Re: Hello from Germany

Welcome!
You will be loved here. Great community, great people. A huge amount of real professional microscopists and useful information.
by Leitzcycler
Sun Jul 12, 2020 9:26 am
Forum: Microscopes and optics
Topic: condenser Orthoplan
Replies: 4
Views: 608

Re: condenser Orthoplan

I don't have a filter tray in my Orthoplan condenser. I think normally there is no filter tray in Onrthoplan condensers. The Ebay link represents Bereck condenser which, as far as I understand, is for a microscope without a built-in Köhler illumination, perhaps for an older model of Ortholux. I don'...
by Leitzcycler
Wed Jul 08, 2020 7:36 am
Forum: Microscopes and optics
Topic: Leitz Dialux questions: Mixing 160/170 objectives and best objectives for water organisms
Replies: 11
Views: 922

Re: Leitz Dialux questions: Mixing 160/170 objectives and best objectives for water organisms

I checked this morning: Actually the difference in focus between 100x oil objectives of 160 and 170 is very small. So you shouldn't smash anything.
by Leitzcycler
Tue Jul 07, 2020 9:03 pm
Forum: Microscopes and optics
Topic: Leitz Dialux questions: Mixing 160/170 objectives and best objectives for water organisms
Replies: 11
Views: 922

Re: Leitz Dialux questions: Mixing objectives, darkfield, and best objectives for water organisms

To question 1: I have used both in Orthoplan with no problems. In priciple, you are right with the parfoaclity. The most difficult objective to focus is 100x oil immersion. So it is most convenient if you have that objective and the one with the second highest magnification (e.g. 40x) of the same tu...
by Leitzcycler
Tue Jun 30, 2020 8:39 am
Forum: Microscopes and optics
Topic: Best DIC options?
Replies: 64
Views: 7067

Re: Best DIC options?

by Leitzcycler
Tue Jun 30, 2020 8:00 am
Forum: Microscopes and optics
Topic: Best DIC options?
Replies: 64
Views: 7067

Re: Best DIC options?

Have you posted photos of it anywhere? Absolutely not. This won't happen for a long time. First of all, I must buy a better camera to take any pictures which could be published. The second problem is that my led lighting is not powerful enough for phaco so I have to build a better system for that. ...