Reichert Polyvar

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Rorschach
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Reichert Polyvar

#1 Post by Rorschach » Thu Apr 06, 2023 5:51 pm

Hi people,

Today I was given a Reichert Polyvar for free :o 8-) It is supposed to be in working condition. At least both the coarse and fine focus work smoothly. The XY table has been detached but not lost - I am getting it back next week. It also has the lamp unit attached to the back of the unit and the control unit (for camera setup & 100W halogen light). Included was also a full set of user manuals in finnish, english and german plus some additional manuals and tips papers from the finnish importer.

The condenser was removed but that one I got back already. It looks to be in super nice condition from what I can tell. It seems to be the best possible option of the three versions of the Universal Contrast Condenser that were available for the Polyvar, the 283901, which enables BF, DF, phase contrast and interference contrast. The interference contrast main prism also seems to be present so that is good. I am not sure whether there is anything missing regarding phase contrast and interference contrast...any Polyvar experts on here?

Condition of the objectives is unknown yet but looks promising as the scope was always kept in room temperature and dry conditions. All the objectives seem to be of the IK type, which is great. Two of them are Plan Apos.

The original box thing (large format photo thingy, I guess?) has been removed and replaced y something more generic as can be seen from the photos.

Not sure what the Reichert-Jung Multiplate thingy is, but it is apparently included.

I am not sure whether anything important is missing? Also no idea what would be the 'must-have' parts and accessories for the Polyvar. I didn't know very much about the instrument 24 hours ago...It literally dropped in my lap from the heavens :D
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Rorschach
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Re: Reichert Polyvar

#2 Post by Rorschach » Thu Apr 06, 2023 5:55 pm

More photos.
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Rorschach
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Re: Reichert Polyvar

#3 Post by Rorschach » Thu Apr 06, 2023 6:03 pm

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imkap
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Re: Reichert Polyvar

#4 Post by imkap » Thu Apr 06, 2023 6:13 pm

When you get the stage and the condenser back, I think you might be having everything already...
Just find a way to attach a camera and enjoy :D

Hobbyst46
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Re: Reichert Polyvar

#5 Post by Hobbyst46 » Thu Apr 06, 2023 8:20 pm

The infinity corrected optics are another advantage. The trinocular head - still another.
Focus knobs that work smoothly remove the main concern about a used microscope.
The 40X/1.00 oil immersion objective will provide great darkfield.
All in all, like winning a lottery card. Enjoy !

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Re: Reichert Polyvar

#6 Post by Phill Brown » Thu Apr 06, 2023 9:02 pm

Take extra care with 100w halogen if you haven't worked with it.
Seriously bright.

PeteM
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Re: Reichert Polyvar

#7 Post by PeteM » Thu Apr 06, 2023 9:17 pm

That should be a spectacular scope. Complete transmitted DIC systems for the Polyvar are pretty rare, especially with those Apo objectives.

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Re: Reichert Polyvar

#8 Post by blekenbleu » Thu Apr 06, 2023 9:59 pm

Literally a fantastic scope.
Here's hoping correcting trinocular optics are included.
Metaphot, Optiphot 1, 66; AO 10, 120, EPIStar, Cycloptic

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shutterbug
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Re: Reichert Polyvar

#9 Post by shutterbug » Fri Apr 07, 2023 1:23 am

Wow!! :O

that's amazing!

Regarding the multiplate - this is very similar I think:
https://micro-shop.pl/product/leica-lkb ... e/?lang=en

So it seems to be a slide preparation and treatment device to regulate and maintain their temperatures at specific values.

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Re: Reichert Polyvar

#10 Post by apochronaut » Fri Apr 07, 2023 4:04 am

That is like winning the lottery. If you have the room for it, it is hard to find a better diasopic microscope from it's era and even today, the optical quality holds up.
A not so known fact is that AO was the corporate owner of Reichert since 1962 and they generally left Reichert alone to do their own thing but it is hard not to notice that AO buys Reichert in 1962, about the same time that they introduce an infinity corrected diascopic system and then Rerichert follows up 8 years later with an infinity system of exactly the same reference length. They shared production over the years.
I use the Reichert planapos regularly but I see one objective pictured partially that I don't recognize. A 10X 0.32 N.A. ....What is that one?

Rorschach
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Re: Reichert Polyvar

#11 Post by Rorschach » Fri Apr 07, 2023 5:44 am

Nice to hear that it is truly something to be happy about :) I had a feeling that it might special. It it pans out and has no significant (unfixable) flaws, it will definitely mean the end for a couple other plans and projects regarding light microscopy.

Checking out the objectives is important and will do as soon as I get access to it again. I will take better photos of the IK 10x objective at that time @apochronaut

I Will need to scour the web for Reichert brochures of the time to get an idea of the system and possibilities with it. Seems there isn't much available anywhere.

Rorschach
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Re: Reichert Polyvar

#12 Post by Rorschach » Fri Apr 07, 2023 5:54 am

PeteM wrote:
Thu Apr 06, 2023 9:17 pm
That should be a spectacular scope. Complete transmitted DIC systems for the Polyvar are pretty rare, especially with those Apo objectives.
Yes, I am particularly happy about that as my other project, Orthoplan, seems impossible (or stupid expensive) to equip for DIC. That I can now forget. It seems the wafer inspection and metal epi Polyvar models in general are much more common than these biological/transmitted light versions. Bit of a unicorn even. But even the wafer/metal models aren't growing on trees.

Rorschach
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Re: Reichert Polyvar

#13 Post by Rorschach » Fri Apr 07, 2023 5:55 am

blekenbleu wrote:
Thu Apr 06, 2023 9:59 pm
Literally a fantastic scope.
Here's hoping correcting trinocular optics are included.
Thanks :-) Yes, it has the correct 10x WPK eyepieces. Of course I need to check them for problems when I have the chance.

Rorschach
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Re: Reichert Polyvar

#14 Post by Rorschach » Fri Apr 07, 2023 5:59 am

Hobbyst46 wrote:
Thu Apr 06, 2023 8:20 pm
The infinity corrected optics are another advantage. The trinocular head - still another.
Focus knobs that work smoothly remove the main concern about a used microscope.
The 40X/1.00 oil immersion objective will provide great darkfield.
All in all, like winning a lottery card. Enjoy !
Thanks! :) That's good to know about the 40X Plan Apo. Do you have experience of it?

If I understand correctly the DF should work for all lenses on the turret when the DF stop in the Universal Condenser is actuated (maybe not for the lower power ones, though?). If true, it makes things a lot easier, not having to swap condensers!

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Re: Reichert Polyvar

#15 Post by MichaelG. » Fri Apr 07, 2023 6:59 am

Rorschach wrote:
Fri Apr 07, 2023 5:44 am
Nice to hear that it is truly something to be happy about :) […]

I Will need to scour the web for Reichert brochures of the time to get an idea of the system and possibilities with it. Seems there isn't much available anywhere.
This is for the Met version, but should get you rolling:
http://www.photonicmicrodevices.com/fil ... Manual.pdf

MichaelG.
Too many 'projects'

Rorschach
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Re: Reichert Polyvar

#16 Post by Rorschach » Fri Apr 07, 2023 7:15 am

MichaelG. wrote:
Fri Apr 07, 2023 6:59 am
Rorschach wrote:
Fri Apr 07, 2023 5:44 am
Nice to hear that it is truly something to be happy about :) […]

I Will need to scour the web for Reichert brochures of the time to get an idea of the system and possibilities with it. Seems there isn't much available anywhere.
This is for the Met version, but should get you rolling:
http://www.photonicmicrodevices.com/fil ... Manual.pdf

MichaelG.
Thanks Michael! I did receive the original manuals for the biological version Polyvar (which I received) in print and in good condition and in three languges (even in my native finnish!) so that is good. But I am sure there are additional insights in the manual for the met version, regarding epi illumination etc.

Rorschach
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Re: Reichert Polyvar

#17 Post by Rorschach » Fri Apr 07, 2023 7:30 am

Here's a page from the Polyvar manual on transmitted light objectives:
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So it seems I do have all the necessary IK objectives already: 10x IK, 40x IK and 100x IK. The two higher power ones are Plan Apo versions while the 10x lens is just Plan IK. The remaining two I didn't get a proper look on or photo of, as the scope was in a very difficult cranny to reach.

However, the story of the gift Polyvar does get even better...the set also includes all three Ph objectives that are listed in that table: 10x, 40x and 100x! :shock: This is quite significant because as you can see fro the table, the IK objectives can do it all (BF, DF, fluorescence, IK, BP), EXCEPT for phase contrast! So now I got that base covered as well. It seems Christmas moved to April :)

The three phase objectives were found in a drawer elsewhere in the department and nobody of the current staff even knew what they were for. Of course, I need to check them for condition but they look excellent on the surface and each of them was in a dedicated objective case/container. Promising at least! The Reichert serial numbers on them do not match the ones mentioned on that table for Ph lenses but they must be the correct ones as all the values match and they are infinity corrected. Perhaps they are a newer iteration?

Edit: the 10x IK has to actually be a IK Plan Apo as well, as it has a 0,32 aperture, right? If it was a Plan IK, it would have an aperture of 0,25 according to the table. @apochronaut: this answers also your question?

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Re: Reichert Polyvar

#18 Post by MichaelG. » Fri Apr 07, 2023 7:59 am

.

I am lost for words

Can only assume that you did very good things in some previous incarnation !

MichaelG.
Too many 'projects'

Rorschach
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Re: Reichert Polyvar

#19 Post by Rorschach » Fri Apr 07, 2023 8:33 am

MichaelG. wrote:
Fri Apr 07, 2023 7:59 am
.

I am lost for words

Can only assume that you did very good things in some previous incarnation !

MichaelG.
:D Who knows. I am agnostic so my door is open for that option as well!

But I have helped the people in that department a number of times during the last several years. No small favors either. Going back some more years, it used to be where I studied myself. However, I never imagined that being nice would pay dividends like this! :o 8-)

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Re: Reichert Polyvar

#20 Post by Phill Brown » Fri Apr 07, 2023 8:52 am

Certainly looks like a one stop shop.
It's great to be given something that isn't broken.
Don't feel bad, I would have accepted it as a gift too.

Rorschach
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Re: Reichert Polyvar

#21 Post by Rorschach » Fri Apr 07, 2023 8:57 am

Phill Brown wrote:
Fri Apr 07, 2023 8:52 am
Certainly looks like a one stop shop.
It's great to be given something that isn't broken.
Don't feel bad, I would have accepted it as a gift too.
Yeah, it does. It'll take some time to fully figure out whether everything works as it should and all the optics are good. But the signs are pretty good. Would need to get the thing home first to even start the process but that will likely take a week or two.

I have a feeling that many on here would have accepted this gift :)

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Re: Reichert Polyvar

#22 Post by blekenbleu » Fri Apr 07, 2023 9:31 am

Rorschach wrote:
Fri Apr 07, 2023 5:55 am
it has the correct 10x WPK eyepieces
I was thinking more about photo correction.
Metaphot, Optiphot 1, 66; AO 10, 120, EPIStar, Cycloptic

Rorschach
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Re: Reichert Polyvar

#23 Post by Rorschach » Fri Apr 07, 2023 9:49 am

blekenbleu wrote:
Fri Apr 07, 2023 9:31 am
Rorschach wrote:
Fri Apr 07, 2023 5:55 am
it has the correct 10x WPK eyepieces
I was thinking more about photo correction.
Ah, ok! About that I have no clue. I do have a lot of Leitz and Wild gear for photo couplings but perhaps those are no use with a Reichert. I have also the zoom optics part from a Leitz Vario-Orthomat - maybe that could be useful :?:

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Re: Reichert Polyvar

#24 Post by apochronaut » Fri Apr 07, 2023 12:13 pm

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 other more modest models.. I had not seen a 10 X 0.32 iK objective before, only 10X 0.30, and only as a planapo. From the list suppplied by Michael G it seems that the 10X 0.32 IK is also a planapo, yet yours is not marked as such?

Additional to that list there are also the following coverslip corrected optics to my knowledge., some of which were also listed for the Diavar 2, the Polylite etc.
2X .08 plan fl apo
4X .13 planapo
10X .30 planfl apo
40X .70 planfl apo
63X 1.00 plan glyz. im. ( planachromat)
63X 1.00 plan oel . im. (planachromat)
100X 1.25 plan glyz.im. (planachromat)
100X 1.30 planfl apo oel im.
Reichert produced a whole range of objectives in the 80's called planfl apo. I list the only coverslip corrected ones I have actually seen above. There may have been others.
The original concept from the start was for all objectives with an N.A. over .75 to have been equipped with an iris. Later, they departed from that as the infinity corrected design principle was extended to more economical stands such as the Diavar 2 . Across the pond when AO extended it's objective parfocality to 45mm, three of the planfl apos were just marked planfl and offered for the Microstar IV and Diastar.

Additionally, there were phase objectives with higher colour correction and I believe anoptral versions in planachromat format too, although those may have been limited to the early days of Reichert's infinity corrected program. I have not seen anoptral objectives for the Univar or Polyvar, just heard about them. There is a forum member who knows something about that. Perhaps he will chip in.

The higher colour corrected phase objectives I know of are.

40X .70 planfluor phase. Odd objective with a very small, thin annulus. I have been told that it did not produce phase in a Univar but I was able to get DF/phase by pairing it with the 100X diaphragm in a Diastar. DF/phase/oblique even. I am using Reichert Austria phase objectives otherwise successfully in a Diastar, so it seems there is optical continuity between it and the Polyvar mostly.
40X 1.0 planapo oil phase
100X 1.30 planfl apo oil phase
100X 1.32 planapo oil phase
Presumahly there are 10X and 25X planapo phase versions too. Not seen them.

That fleshes out the objective options for it mostly.

The f.o.v. is 24mm. There was also a 16X W.P.K. eyepiece too.
Last edited by apochronaut on Fri Apr 07, 2023 11:01 pm, edited 2 times in total.

Rorschach
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Re: Reichert Polyvar

#25 Post by Rorschach » Fri Apr 07, 2023 12:57 pm

apochronaut wrote:
Fri Apr 07, 2023 12:13 pm
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 other more modest models.. I had not seen a 10 X 0.32 iK objective before, only 10X 0.30, and only as a planapo. From the list suppplied by Michael G it seems that the 10X 0.32 1K is also a planapo, yet yours is not marked as such?

Additional to that list there are also the following coverslip corrected optics to my knowledge., some of which were also listed for the Diavar 2, the Polylite etc.
2X .08 plan fl apo
4X .13 planapo
10X .30 planfl apo
40X .70 planfl apo
63X 1.00 plan glyz. im. ( planachromat)
63X 1.00 plan oel . im. (planachromat)
100X 1.25 plan glyz.im. (planachromat)
100X 1.30 planfl apo oel im.
Reichert produced a whole range of objectives in the 80's called planfl apo. I list the only coverslip corrected ones I have actually seen above. There may have been others.
The original concept from the start was for all objectives with an N.A. over .75 to have been equipped with an iris. Later, they departed from that as the infinity corrected design principle was extended to more economical stands such as the Diavar 2 . Across the pond when AO extended it's objective parfocality to 45mm, three of the planfl apos were just marked planfl and offered for the Microstar IV and Diastar.

Additionally, there were phase objectives with higher colour correction and I believe anoptral versions in planachromat format too, although those may have bern limited to the early days of Reichert's infinity corrected program. I have not seen anoptral objectives for the Univar or Polyvar, just heard about them. There is a forum member who knows something about that. Perhaps he will chip in.

The higher colour corrected phase objectives I know of are.

40X .70 planfluor phase. Odd objective with a very small, thin annulus. I have been told that it did not produce phase in a Univar but I was able to get DF/phase by pairing it with the 100X diaphragm in a Diastar. DF/phase/oblique even. I am using Reichert Austria phase objectives otherwise successfully in a Diastar, so it seems there is optical continuity between it and the Polyvar mostly.
40X 1.0 planapo oil phase
100X 1.30 planfl apo oil phase
100X 1.32 planapo oil phase
Presumahly there are 10X and 25X planapo phase versions.too. Not seen them.

That fleshes out the objective options for it mostly.

The f.o.v. is 24mm. There was also a 16X W.P.K. eyepiece too.
Good to know about the Univar. Perhaps some of those lenses could be found and used to complement the Polyvar set. Same thing about those extra phase options, thanks!

The thing is, I couldn't get a proper look or a photo of the 10x IK. The scope was in a difficult to reach place and I was being hurried by the caretaker who opened the storage doors. So the lens might be Plan Apo, just didn't see that side of the lens where the text might be. That table form the Polyvar manual that I attached in an earlier message in this chain clearly does list a 10x IK Plan Apo whose aperture is 0.32. I will definitely check this as soon as I get the chance.

Edit: killed a typo.

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Re: Reichert Polyvar

#26 Post by apochronaut » Sat Apr 08, 2023 1:44 am

The objectives for the Univar are indistinguishable from those made for the Polyvar except that they were all engraved and the range more limited. As the Polyvar came along, then the Polylite , Polycon and Diavar 2, they started painting the data then the style of fonts changed, plus the options about doubled.

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Re: Reichert Polyvar

#27 Post by Hobbyst46 » Sat Apr 08, 2023 10:00 am

Rorschach wrote:
Fri Apr 07, 2023 5:59 am
Hobbyst46 wrote:
Thu Apr 06, 2023 8:20 pm
The infinity corrected optics are another advantage. The trinocular head - still another.
Focus knobs that work smoothly remove the main concern about a used microscope.
The 40X/1.00 oil immersion objective will provide great darkfield.
All in all, like winning a lottery card. Enjoy !
Thanks! :) That's good to know about the 40X Plan Apo. Do you have experience of it?

If I understand correctly the DF should work for all lenses on the turret when the DF stop in the Universal Condenser is actuated (maybe not for the lower power ones, though?). If true, it makes things a lot easier, not having to swap condensers!
No experience with specific Reichert infinity optics, but, by analogy with my Zeiss objectives, the 40X/1 iris should give great DF when the iris is closed down to about 0.6-0.7 (under oil immersion).
DF can be achieved with the low-mag (phase contrast or not) dry objectives (4X, 10X) and high-mag (60X, 100X) phase contrast setting of the condenser.
And, in addition, with the higher mag objectives (immersion or dry, up to an NA of about 0.8) and DF setting of the condenser, when the front lens of the condenser is immersion-OILED to the bottom of the slide. (Dry objectives should never contact oil immersion). One may try those combinations. For higher objective NAs, a dedicated DF condenser will probably serve better.

This Polyvar was probably a front line department imaging system decades ago. No wonder the phase objectives were stored in a "remote" drawer - often, phase contrast is being shelved when DIC/IK enters.

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Re: Reichert Polyvar

#28 Post by Phill Brown » Sat Apr 08, 2023 3:48 pm

I'd be interested to know the date of manufacture, it's relatively recent.

apochronaut
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Re: Reichert Polyvar

#29 Post by apochronaut » Sun Apr 09, 2023 2:30 pm

The Univar came out about 1970. The Polyvar about 1978. I don't know if their production overlapped. The Polyvar stayed in production into the early 2000's with the last ones being branded Leica and painted all white. W. Butter might know the dates a little more accurately.

Nikon Infinity System objectives seem to be reasonably compatible with the Reichert objectives. There are a few planachromat 45mm parfocal Nikon objectives around and relatively more types of NIS objectives made in China. There is a quite decent 100X 1.10 W.I. planachromat made in China for instance.
There is a small magnification difference. The NIS objectives want a 200mm reference length, the Reichert objectives 182mm, so in a Polyvar or as used in my system a Diastar, the NIS objectives magnify a little over 91% of that marked. They can be used with the same eyepieces since the Reichert objectives were already as chrome free as modern Nikon objectives in 1972 . With 12.5X modern Nikon formatted surgical eyepieces a hybrid objective mosepiece works out quite nicely. The 100X NIS W.I objective magnifying 91% gives 1137.5X at 1.10 N.A., so maximizing the potential of the W.I. objective.
I haven't found Olympus infinity objectives to be perfectly corrected for inclusion with Reichert objectives in the same nosepiece despite their highly compatible reference length of 180mm. They give an o.k. image but there is a small amount of uncontrolled peripheral ca with Olympus achromatically corrected objectives that is not present with those formatted for Nikon. I don't have any Olympus infinity corrected objectives higher up on the food chain. Perhaps they would not be so bad.

Rorschach
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Re: Reichert Polyvar

#30 Post by Rorschach » Sun Apr 09, 2023 4:28 pm

That's a very long production run, approaching Orthoplan level. I guess there weren't that many Leica Polyvars made as I haven't seem them anywhere.

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