Zetopan UV condenser

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JWW
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Zetopan UV condenser

#1 Post by JWW » Tue Jan 24, 2023 2:13 am

Does anyone have a complete Zetopan UV condenser for phase anoptral contrast with the swing-out lens? The two Zetopan UV condensers I have don't have the swing-out wide-field lens. I'd like to see a few good photos of it and the reason for wanting the photos. I'm unsure if the swing-out lens was mounted to the UV condenser itself or somewhere else underneath.

Thanks,
-JW:

wabutter
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Re: Zetopan UV condenser

#2 Post by wabutter » Thu Feb 02, 2023 12:54 am

I have the 1978 version of the Zetopan order guide. This is from the last year of production and availability, as the as the Univar (1974-5ish) and subsequently the Polyvar (1976ish)were being brought The only reference to the UV condenser is for use with the Binolux illuminator for fluorescence and the microspectrophotometer. I don't see any reference to these units being made out of quartz, so transmission is probably limited 365nm and above. The Zetopan with HBO200 offered filter sets that allowed for excitation in that range. Typically the Schott UG1 with a center peak of 355nm.

There are two condensers listed. (see below) Neither offered a swing out lens. The first one is BF, while the second on offers reference to UV.

9 99 00 17; Two lens Condenser 0.65 MS with condenser sleeve and magnetic plate. Centering key, aperture iris diaphragm, with filter holder on a slider.
there are 3 magnetic inserts for DF. depending on the objecive na. 9282860; 9282863; 9282881
there are 4 magnetic inserts for Phase, and Anoptral contrast examinations 9282864; 9282867; 9282865; 9282866

The second condenser is the 9 99 0016 1.40/UV/MS with condenser sleeve and magnetic plate. Centering key, aperture iris diaphragm, with filter holder on a slider.

Magnetic Inserts for Contrast Fluorescence
9 282835 Insert with filter diaphragm UV3 for PhA 25x/0.45; Ph 40/0.65
9 282836 Insert with filter diaphragm UV4 for PhA 40/0.65; PhA 40x/0.90; Ph 63/0.80
9 282837 Insert with filter diaphragm UV5 for PhA 63/0.80, Oil, PhA100/1.30; Glyc, PhA 60/0.95; Glyc, PhA 95/1.18; Oil, Ph 100/1.30
9 282838 Insert with filter diaphragm UV6 for oil PhA100/1.25

There are also two Brightfield condensers that offer a flip in/out top element
9 990001 Two diaphragm condenser 0.95 top element, swing out and interchangeable, on slider. optional 9 171401 1.30 can be swapped out.
9 990002 Same as above except strain free for POL work. optional 9 171451 1.30 np top element.

Hope that helps. I happen to have a few 160mm objectives for the Zetopan.

JWW
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Re: Zetopan UV condenser

#3 Post by JWW » Thu Feb 02, 2023 2:58 am

Thanks for taking the time to reply, it's appreciated. This particular Zetopan came with the UV condenser, PhA 16/0.32, PhA 40/0.65 iris, Pha 63/0.75 iris and a Fluor 63/0.85 corr. I'm still getting familiar with these scopes, even though I have three. I have the IK condenser and DIC and EPI setup for one of the other Zetopans. Thanks to a friend, I picked this one up at Montana State University Western Agricultural Research Center for free and just started to use it. I struggled with it quite a bit, and it seemed very finicky. Then again, I am a novice. I'm not using the stock illuminator, which I believe is a Binolux. Instead, I have a LED illuminator from Retrodiode. I haven't figured everything out yet, but I somewhat have a handle on the Anoptral contrast setup I think. I found a Zetopan manual for Phase Contrast here;

http://www.science-info.net/docs/reiche ... ntrast.pdf

It mentions a swing-out wild field lens, item 85, in the manual for the UV condenser.
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BramHuntingNematodes
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Location: Georgia, USA

Re: Zetopan UV condenser

#4 Post by BramHuntingNematodes » Thu Feb 02, 2023 11:43 pm

nice scope
1942 Bausch and Lomb Series T Dynoptic, Custom Illumination

wabutter
Posts: 118
Joined: Thu May 09, 2019 12:27 am

Re: Zetopan UV condenser

#5 Post by wabutter » Sun Feb 05, 2023 12:28 am

Impressive set up. And Clearly the price was/is right.
There are two contrast condenser offered in my reference material.
9 99 00 05 Contrast condenser, N.A. =0.98 turret with 6 annular aperture diaphragms (1-6) 3 empty apertures, centering deice, aperture iris diaphragm, with wide field optics, on slider.

Also the
9 99 00 06 Contrast condenser N.A. 0.92 turret with 5 annular aperture diaphragms (1-5) Transparent to UV, aperture with red excluding filter, (B) 3 empty apertures, center device and aperture iris diaphragm. on slider.

It appears the first condenser listed above included wide field optics for the condenser, where as the second one, does not list this a part of the condenser. I don't see a separate listing for the wide field optic.

You definitely have the Binolux illuminator, Did you also get the transformer? Does the LED provide UV spectrum?

Your diatoms look nice, good sepia tone to the background as well.

JWW
Posts: 98
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Re: Zetopan UV condenser

#6 Post by JWW » Sun Feb 05, 2023 2:18 am

Wabutter,

Thanks. Yes I have the transformer but haven't tried to use it. I'm not familiar with this scope whatsoever but learning. My LED setup is 5000k. I thought the PhA Anoptral looks a litter better with my PZO Biolar. I haven't been able to stack any images successfully with the Zetopan PhA and the UV condenser and associated objectives compared to my PZO. Not sure why yet. I'm missing a few objectives but have all of the PhA objectives. Today I've been trying to figure out an Afocal setup (adapter wise). So far I've had decent luck with a Panasonic G9, a Reichert 5x foto relay lens and a Tokyo Kogaku Auto Topcor 5.8cm f/1.8 MF lens but haven't figured out how to adapted it properly with what I have.

Here's a link to my Zetopan stuff.

https://pbase.com/smokedaddy/zetopan_pha_dic&page=all

-JW:
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20230204_193004.jpg (163.58 KiB) Viewed 1679 times

wabutter
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Re: Zetopan UV condenser

#7 Post by wabutter » Tue Feb 07, 2023 12:34 am

Quite the impressive collection of Zetopans spanning a number of iterations. the silver is the latest vintage while the light cream color was done for the exclusive distribution by Hacker prior to AO purchasing Reichert in the 60's. Black is the oldest. I see the silver one has a Hacker label on it, so it must have been around the transition time.

You mentioned not being able to stack image. Are you referring to a Z stack for 3D reconstruction?

It has be more than 40 years since I have worked on a Zetopan, It would come back to me if I had on in front of me, but I don't know if I would be much help remotely. You mentioned there were a couple of objective you did not have, Which ones? I have a number of objectives that are brand new. such as a PhA 100x 1.25. I might be able to help fill you gap. I also have some Polyvar goodies?

JWW
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Re: Zetopan UV condenser

#8 Post by JWW » Tue Feb 07, 2023 2:48 am

Thanks, Wayne,

BTW, I've corresponded with you before regarding my Leica DMIRB/E (which I greatly appreciated).

Thanks for the Zetopan history lesson, too, it's appreciated. Yes, I was referring to Z-stacking images. I'm pretty familiar with that process. I've been doing that for several years but having issues with PhA Z-stacking. It also seems that I've never been able to sharply focus any phase image with the Zetopan with my current setup. I'm not sure if it's me or something else. It's probably the inferior objectives. I've had better luck with PhA Z-stacking with my PZO Biolar. Obviously, the Fluor 63/0.85 corr objective is the best of the lot it came with.

My Polyvar MET and SC are pretty well equipped, but I'd love to motorize one of the stages. I'd love to hear what you might have Polyvar wise. They are my favorite scopes. I wish I had the controller for the motorized turret and the 150x water immersion objective for the Polyvar.

ldflan
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Re: Zetopan UV condenser

#9 Post by ldflan » Wed Feb 08, 2023 12:42 am

JWW wrote:
Tue Jan 24, 2023 2:13 am
Does anyone have a complete Zetopan UV condenser for phase anoptral contrast with the swing-out lens? The two Zetopan UV condensers I have don't have the swing-out wide-field lens. I'd like to see a few good photos of it and the reason for wanting the photos. I'm unsure if the swing-out lens was mounted to the UV condenser itself or somewhere else underneath.

Thanks,
-JW:
Yes, I have the swing-out lens attached to a gray standard phase contrast turret.
My black UV turret has the screw hole for the swing out lens, but it doesn't have one attached. Same for my gray IK turret. It could be mounted on it, but it doesn't have one.
They simply screw on the bottom of the turret, using the larger of the threaded holes you see there.

My experience with Reichert anoptral objectives has been very much hit and miss. Some are good, some I just can't get to work. In general, the polyphos is helpful for using them - the annuli on some of the older objectives don't match the turret inserts. Also the Meopta anoptral objectives are better, though 170TL.

JWW
Posts: 98
Joined: Tue May 16, 2017 9:24 pm
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Re: Zetopan UV condenser

#10 Post by JWW » Wed Feb 08, 2023 2:33 am

ldflan wrote:
Wed Feb 08, 2023 12:42 am

Yes, I have the swing-out lens attached to a gray standard phase contrast turret.
Thanks ldflan. Someday when you have time, I'd love to see a photo or two of it.

-JW:

ldflan
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Re: Zetopan UV condenser

#11 Post by ldflan » Wed Feb 08, 2023 6:14 pm

JWW wrote:
Wed Feb 08, 2023 2:33 am
Someday when you have time, I'd love to see a photo or two of it.
Here you go.

https://www.yogile.com/lkts7ygampi/11m/ ... =d5c26cfec

JWW
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Re: Zetopan UV condenser

#12 Post by JWW » Wed Feb 08, 2023 6:35 pm

Thanks very much, Leonard, for taking the time to take the photos and post them. I would imagine finding one of those would be like finding hen's teeth.

Regards,
-JW:

ldflan
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Location: Morna Moruna

Re: Zetopan UV condenser

#13 Post by ldflan » Wed Feb 08, 2023 9:29 pm

JWW wrote:
Wed Feb 08, 2023 6:35 pm
I would imagine finding one of those would be like finding hen's teeth.
Cell phone. Amazing technology.

Finding any particular Zetopan part can often take a long while and cost too much. That said, it shouldn't be too hard to find the wide field swing out lens. Based on the catalog information, it was supplied with the standard phase contrast turret only, but it was a standard feature on it.

wabutter
Posts: 118
Joined: Thu May 09, 2019 12:27 am

Re: Zetopan UV condenser

#14 Post by wabutter » Mon Feb 13, 2023 8:18 pm

I wonder if you could modify the Aux Lens from the AO Seriese 10/110 abbe condenser to work. There should be bazillion of them out there cheap and would require mostly modification to the mounting point.

JWW
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Re: Zetopan UV condenser

#15 Post by JWW » Mon Feb 13, 2023 10:38 pm

wabutter wrote:
Mon Feb 13, 2023 8:18 pm
I wonder if you could modify the Aux Lens from the AO Seriese 10/110 abbe condenser to work. There should be bazillion of them out there cheap and would require mostly modification to the mounting point.
I have no idea Wayne since I know nothing about AO scopes. Not that I'm not interested in what you've suggested, but I have four condensers for my Zetopan, so I haven't even considered modifications at this point.

-JW:

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