Eyepieces Zeiss.

[Sabatini]

Cordial greetings.
Here I come again looking help of those here always willing to expand our knowledge.
These zeiss eyepieces which I show below are from Zeiss, I think primostar infinite system.
The thing is that my microscopes are all 160 and 170 mm.... Both Zeiss and laitz.
The question I have is, if they would make a good mach with these focal lengths and with their respective objective. I'll send you pictures of the systems I have.
Thank you in advance.

IMG_20220418_125519.jpg (63.57 KiB) Viewed 1963 times

PXL_20220418_181005996.MP (1).jpg (77.68 KiB) Viewed 1963 times

PXL_20220418_181012360.MP (1).jpg (81.55 KiB) Viewed 1963 times

[Phill Brown]

They look like 30mm which might not be ok.
23.2mm is more likely what you have?

[BramHuntingNematodes]

Also, at some stage of the Zeiss finite system all lenses were made to use the K oculars, isn't that right?

[Sabatini]

They look like 30mm which might not be ok.
23.2mm is more likely what you have?

They're 22mm. In this case you think is a good choice.?

[dtsh]

They look like 30mm which might not be ok.
23.2mm is more likely what you have?

They're 22mm. In this case you think is a good choice.?

The 23.2mm is the diameter of the eyepiece that goes into the tube (or 30mm as was suggested the ones linked might be). The 22mm on the eyepiece describes the field number, which covers the field of view. So you could have WF10x/22 eyepieces that fit a 23.2mm diameter tube (or 30mm) and deliver a 22mm field of view to the eye.

[Sabatini]

Ok... now I understand.
Thank you very much for your help

[MicroBob]

Hi Sabatini,
what you have there are Leitz (160 or 170mm)and Zeiss Jena 160mm microcopes. For the Leitz microscope you need Leitz Periplan eyepieces as they contain a certain degree of colour correction. With Zeiss Jena it is a bit more difficult. Your objectives will be on one of the last 160mm series and may perhaps be fully corrected. You could see this from the letter "A" für "Auskorrigiert" on the objective barrel. In case they are not "A" it stays difficult as some lower power Zeiss Jena objectives don't need correction eyepieces while the higher powers do. Zeiss Jena correction eyepieces are named "PK".
In case you already have the eyepieces you could just test them, the problem would show toward the border when observing color less high contrast objects.
To identify a correction eyepiece you can just look into it. A colour frings at the border of the field aperture is a sign of correction eyepieces.

Leitz and Zeiss Jena eyepieces are not difficult to obtain and don't tend to delaminate. But eyepieces with this wide field are not as plenty on the used market.

Bob

[Sabatini]

Hi Sabatini,
what you have there are Leitz (160 or 170mm)and Zeiss Jena 160mm microcopes. For the Leitz microscope you need Leitz Periplan eyepieces as they contain a certain degree of colour correction. With Zeiss Jena it is a bit more difficult. Your objectives will be on one of the last 160mm series and may perhaps be fully corrected. You could see this from the letter "A" für "Auskorrigiert" on the objective barrel. In case they are not "A" it stays difficult as some lower power Zeiss Jena objectives don't need correction eyepieces while the higher powers do. Zeiss Jena correction eyepieces are named "PK".
In case you already have the eyepieces you could just test them, the problem would show toward the border when observing color less high contrast objects.
To identify a correction eyepiece you can just look into it. A colour frings at the border of the field aperture is a sign of correction eyepieces.

Leitz and Zeiss Jena eyepieces are not difficult to obtain and don't tend to delaminate. But eyepieces with this wide field are not as plenty on the used market.

Bob

Appreciating very much your intervention and the interesting description.
A great help for me.
I have already declined with the seller the negotiation...mainly for the reason of the diameter which is 30mm.