MicrobeHunter.com Microscopy Forum

Apochronaut, thank you again for your great help.

Regards

Steve from Madrid

So it could be this condenser from the 20s to the 30s, right?

Leica was not a microscope company until the 1991 merger. This condenser easily could be Leitz but not Leica. It is not a DF condenser.. It is a stacked BF condenser with sectional N.A. increases matching that required by the grouped objectives coupled to it's matched system. A DF condenser has to ...

BramHuntingNematodes wrote: ↑

Wed Apr 10, 2024 10:26 pm

Well this lister thinks this is a dark field condenser and says it also might be a Leica? So maybe they don't have.it labeled oll korrect.

You are right!

Apochronaut, look what I found. Looks very similar, maybe the brand is Leitz. (I made similar pictures for you but the piece at the back is not a Leitz)

Apocronaut, thanks again. I'm helping a lady friend whose husband worked for Jena many "centuries" ago. He passed away 2 years ago and now has a huge collection (130 lenses, many of them Carl Zeiss Jena) of objects they want to classify. I have the privilege of doing so, but my knowledge, compared t...

Let's see if it helps!!!
Full text:

At the top:

"für Objektive 9 1/16"


On the barrel:

"für Objektive 6 - 8"

"für Objektive 3 - 5"

"Kl.Proj.-Zeich.App."

Another thing I've noticed between the 3 and 6 is the way the head threads onto the barrel.

Apochronaut I think you are the one who can best judge this subject with the images I am publishing now.

Thank you for your time.

Is the 6 not just a partial? Yes, it is empty. Again thank you apochronaut for your precious help. Thanks to the clues you have given me, I believe that the lens was possibly sold from the year 1914 onwards. On eBay there is one with the serial number 169234 from the year 1916 with the lens No. 3 v...

More information

Does anyone know who the manufacturer of this polarizer was?

Thanks for the help

Does anyone know who the manufacturer of this condenser was?

Thanks for the help

Is it possible to determine the time or year in which these lenses were manufactured by E.Leitz?
Thanks for the help

This is the very oldest reference to this mounts that I have been able to find.

Sometimes the objectives are very short, only about 1 cm. long. These were usually used when a vertical illuminator was placed between the objective and microscope body tube. Since the vertical illuminator increased the tube length, the upper part of the objective barrel which in the pre-plan era w...

You are a human VADEMÉCUM on knowledge of the world of microscopes.

Thank you very much for your help and thanks to it I have been able to learn more about these peculiar mounts for polarized lenses.

Dear friends, as always I turn to your knowledge to find out information about these devices at the base of the objectives its name and in which microscopes they are or were used. objetivos raros.jpg On the internet there is little to say nothing except the image that I include. objetivos raros 01.j...

No idea!

I have another in German with pictures. I don't know how to send it to you.

Regards

Will this help you?

https://www.manualslib.com/download/208 ... naval.html

Regards

Saul THANK YOU VERY MUCH!!!

Are they all good for fluorescence?

Very good links

Regards

Steve

I have found very little information about these filters that has reached me. Any information would help me.

So far I know that it is from the Lomo brand and from the little that is found on the internet it must be very old.

Thank you

Thank you all for the help providedand as a small contribution to the group I leave what I have learned in this experience: (the first: not to be "out of my depth") 1. The best thing to clean the lenses is to use Fairy or equivalent, isopropyl alcohol, although it cleans, is a very bad degreaser, it...

PeteM, sorry for the joke, I did it to relax the tension I had reassembling the Nikon objective. Just trying to put the little 'tear' in the front made me suffer a lot. To apply the epoxy and place the small front lens, I practiced for several days. I was able to do it without staining lens with epo...

In the recovery room

Thanks to the help of Apochronaut , for which I am very grateful, I have been able to reach to this point, now it is time to work and wait patiently for the drying and assembly periods, so this thread is pending the results of my "botching" ( I'm kidding) Will we recover this objective or not? It wi...

Yes, there are small dents. I cleaned the area and then with the head of a flat screw and with great care I left the surface flat again.

The lens is centered thanks to a small bevel on its flat side. Still I have no idea which is the right glue to fix It back to the bezel.


Maybe I may be asking too much.

Parts

Which type of glue I should use for the bezel?

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