Zeiss ocular projective

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Piter_
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Joined: Tue Jul 16, 2019 4:26 pm

Zeiss ocular projective

#1 Post by Piter_ » Fri Jan 03, 2020 3:44 pm

Hi.
I have came across this ocular. Any idea then to use it?
It is over 10 cm long, not sure it will fit in my trinocular head.
Thanks.
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MichaelG.
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Re: Zeiss ocular projective

#2 Post by MichaelG. » Fri Jan 03, 2020 8:33 pm

With a focal length of 100mm ... I would guess it’s for classroom or theatre screen projection.

MichaelG.
Too many 'projects'

apochronaut
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Re: Zeiss ocular projective

#3 Post by apochronaut » Fri Jan 03, 2020 9:13 pm

Older eyepieces, in a similar fashion to telescope eyepieces were marked by the focal length, rather than the magnification. 1/2", 1" etc. or 12mm, 25mm etc. A 100mm focal length is about 4", so should come out to 2 to 3X, or so, depending on the actual design. It is probably a huygens or modified huygens type. Low mag. huygens types would be excessively long. I think, a simple photo eyepiece.

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75RR
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Re: Zeiss ocular projective

#4 Post by 75RR » Fri Jan 03, 2020 9:21 pm

I imagine that it is similar to the Micpro:
(page is from Zeiss Optical Systems Brochure)
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Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)

MichaelG.
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Re: Zeiss ocular projective

#5 Post by MichaelG. » Fri Jan 03, 2020 11:13 pm

Thanks for page 81

Table 34 would appear to support my hypothesis:
Recommended projection distance = 10m

MichaelG.
Too many 'projects'

Piter_
Posts: 61
Joined: Tue Jul 16, 2019 4:26 pm

Re: Zeiss ocular projective

#6 Post by Piter_ » Sat Jan 04, 2020 9:30 pm

Mine looks like from Zeiss projector.
https://www.google.com/url?sa=t&source= ... oqa3CaYobn
The shiny part is longer.

Piter_
Posts: 61
Joined: Tue Jul 16, 2019 4:26 pm

Re: Zeiss ocular projective

#7 Post by Piter_ » Mon Jan 06, 2020 10:22 am

Here some mote info on the subject:
https://drive.google.com/open?id=0B2sfo ... lFTlQ5Q2RF

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Dmi3n
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Re: Zeiss ocular projective

#8 Post by Dmi3n » Fri Feb 07, 2020 12:18 pm

This is Carl Zeiss Jena (ausJena was their brand for selling outside Eastern block countries for some time) eyepiece for projection microscope called Pictoval (you can find some info and pictures on the internet).
Scopes: CZJ NfPk w/ 45mm apo objectives, Phv phase contrast, Epi Pol illuminator, trinocular head, CZJ Epityp-2 Pol (currently dismantled for full restoration and recollimation) w/ D32 microhardness tester and photomicrography attachment.

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