MicrobeHunter.com Microscopy Forum

The Polyvar is the second iiteration of the concept. The first was the Univar of which only about 500 were made but the important thing is that the objective complement that was originally manufactured for the Univar is also relavent to the Polyvar, as well as objectives later manufactured for othe...

Wayne & Pete, thanks again for the info! Look forward to finding out more about the centering keys.

This may be a dumb question but I will ask anyway. The universal condenser on the Polyvar has provisions for using centring keys. Alas, as you probably guessed, a microscope rescued from oblivion like this one, does not have the matching centring keys any more. But is there any need for them and for...

apochronaut wrote: ↑

Wed May 03, 2023 12:41 pm

You probably know of the docs. on here already?
https://www.science-info.net/docs/reichert/A4/

Yes, these I know of. But thanks anyway.

Sorry I haven't been on the forum in a while. Here are a couple of update points relative to the Univar/Polyvar. If i recall correctly, the Univar was introduced about 1973 and the Polyvar approximately 1975. The major difference is the Polyvar required phase specific objectives with annular rings ...

Sure Squintsalot wrote: ↑

Mon Apr 17, 2023 10:54 pm

Well, these things can't be that rare!



It might be worth nabbing this just for the parts!

I did stalk this one but the final price went far beyond of what I would consider reasonable for a parts donor piece. I think it ended up north of 600 USD.

If 'dance flies' mean the Dipteran family Empididae, I think you are probably correct. When I get them, they are dead in ethanol and look quite a bit different than your individual, but yet, that's what I'd say.

I do have a DIC slider, but I am not sure if it is for the Polyvar or the MeF4 Interesting. Do you have photos of it? I am not entirely sure but I think it's the same slider that is used also for polarization (with the appropriate cube installed). In the attached images, I have delineated the vario...

wabutter wrote: ↑

Mon May 01, 2023 12:35 am

I do have a DIC slider, but I am not sure if it is for the Polyvar or the MeF4

Interesting. Do you have photos of it? I am not entirely sure but I think it's the same slider that is used also for polarization (with the appropriate cube installed).

Okay, now the Polyvar is home! It's a pretty impressive tower of power, especially with the control unit / power supply for the 100W integral halogen and the separate power unit for the 200W HBO burner. It definitely has a large system footprint. A Cthulhu monster comes to mind with all the cables a...

Interesting, at least two possibilities then. I hope the special coating applies here (pun intended) as a PL Apo would be more useful than polarization.

Hi,

I recently acquired a Leitz objective with these markings:
C PL 10:1
A 0.25
170/-
3577

The letter 'C' is in red.

Does this mean that this objective is actually PL Apo, like in the case of the 100x?

Lo and behold! Even the original HBO 200W lamphouse power supply was found from the abysmal depths of departmental storage, together with a used (1900 hours) bulb and a brand new one (Osram). No idea if the power has issues or is fully functional but there is some hope as the system apparently was ...

Here's a good test. https://youtu.be/-MtdhSopACQ. Didn't blow enough to break the envelope. But just in case https://www.ebay.ca/itm/Kappler-Z5H382-HazMat-Suit-Zytron-500-Vapor-Total-Encapsulating-Orange-LG-XL/393935808154?pageci=dbbf1026-4403-4ab7-bc23-ad0b3eadca6e&redirect=mobile Well, that clip ...

Yeah, I am following that one Depending on where the price will settle, I might try to nab it.

However, it really does seem that the biological Polyvars are far more rare than the ones for reflected light (Met) or for semiconductor work.

If the original bulb is present, you might be able to work back from that. Any other scope's supply using the same bulb would likely work. You would probably have to change connectors - relying upon schematics for the replacement supply. Well, even better than that: like I posted in the other threa...

Lo and behold! Even the original HBO 200W lamphouse power supply was found from the abysmal depths of departmental storage, together with a used (1900 hours) bulb and a brand new one (Osram). No idea if the power has issues or is fully functional but there is some hope as the system apparently was r...

Depending on what you want to do, and the space available, it seems you can justify having more than three microscopes: 1) A good stereo microscope, as you say. 2) A high-quality upright "system" scope equipped for BF, DF, phase, polarization, maybe DIC. 3) An inverted scope if you're interested in...

It's starting to look like my number will be five :D There's already two Wild stereos that are being used on a weekly basis. Two are needed because I was never able to find that elusive Wild M10 at a reasonable cost. Had I found it, the M8 would have been sold and an objective slider bought for the ...

Newest find was these parts from a Polyvar Met at a very good price. The filter wheel is the vertical one on the right side of the scope. This slot was empty on my Polyvar. The POL and BF modules were a nice addition - seems only the DF module is missing now. Edit: forgot to mention that those two m...

This thread and the photos have been useful for me as well, trying to get a hold of my own (to me new) Polyvar. So thank you to everyone!

My Polyvar has the high-power lamp unit at the back but does not have either of the special power supply units for it. In order to find one, I would need to know what to look for. So, please, those of you who have one of those units, could you post here photos of the model markings and the connectio...

This is a great idea! Unfortunately I don't have spare thumbwheels to use. So I might opt for the watch key solution. So Orthoplan Zernike condenser needs a 1,5mm diameter wrench. I wonder if there would be enough knowledge around here to put together a simple diameter database for these for various...

Silo is o.k. You just have to do your homework and ask questions. In my case being in Canada, the shipping is high, around 40US but they will ship up to 5 items for that. They almost always will take a lower price, often about 1/2. Over the years I have bought 3 lots of 5 items each. Parts that I n...

I guess somebody buys from them then. Hard to imagine who, though, as they usually don't even have the option to offer a lower than listed price.

Thanks, I'm glad you like it... Biggest con is that it crops 100 frame video quite a lot, 2x or something. Micro video is great, I didn't do photomicrography much, but for general photography I enjoy using it, I feel 12mp is enough for my stills, low light performance is great and the camera can be...

You don't need epi objectives for incident fluorescence. Just objectives that are transparent to UV. Okay, I see. Supposedly then, the presence of the other incident fluorescence gear on this scope means that the lenses are transparent to UV. I may need to find the correct power/transformer for tha...

Okay, thanks for the insights guys. You are probably right. I'm just wondering about the transmitted light fluorescence because all the lenses are for transmitted, not EPI. Or could it be that these lenses can nevertheless be used also for EPI fluorescence? Then it would all make sense.

Little marine biologist found some more gastropods (again), he was quite happy with the find as he claims some of these like the 'Heliconoides inflatus' should be found in the deeper waters only, or mostly. So he was lucky to stumble on a plankton 'swarm' in the shallow water near our house. I thin...

On the left side one can also see a slide-in filter (I suppose), i.e. the black thingy with three different optics on it, one red the other two white with black markings on them. What is that for? The 'black slide-in thingy' as I so expertly named it, actually is part C35 of the incident-light fluo...