Zeiss inverted

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Radazz
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Zeiss inverted

#1 Post by Radazz » Mon Oct 03, 2016 9:14 pm

A few more pix of this beautiful microscope, all shined up.
Obviously missing the illuminator
Phase contrast condenser (all chambers empty)
Only one Ph objective 40x
Missing cover for mirror hole.
Shined an led flashlight through the condenser from above, and the optical path is clear and unobstructed through all objectives.
Zeiss occulars

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gekko
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Re: Zeiss inverted

#2 Post by gekko » Mon Oct 03, 2016 11:16 pm

A beauty. With some patience, I bet you'll be able to complete this fine instrument. Best of luck!

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zzffnn
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Re: Zeiss inverted

#3 Post by zzffnn » Tue Oct 04, 2016 12:41 am

Very nice.
How many objectives > = 40x do you have there? The 40x you have is corrected for 0.17 mm cover or ~1mm cover?

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Radazz
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Re: Zeiss inverted

#4 Post by Radazz » Tue Oct 04, 2016 12:10 pm

zzffnn wrote:Very nice.
How many objectives > = 40x do you have there? The 40x you have is corrected for 0.17 mm cover or ~1mm cover?
Just says Ph2 40/0.65
There is a 100 oil objective but it's not Ph
I think the Ph objectives went with the phase annulai.
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Crater Eddie
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Re: Zeiss inverted

#5 Post by Crater Eddie » Wed Oct 05, 2016 4:50 pm

Beautiful instrument, and it looks like it has some nice company.
CE
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Re: Zeiss inverted

#6 Post by Oktagon » Thu Oct 06, 2016 3:31 pm

Excellent find! Good old Invertiscope (sometimes refered to Invertoscope). This was from the time when inverted mictoscopes with transmitted LP were mainly intnded for chemists. Way before the main application became tissue cultures/life cells. Zeiss solution was to use Standard GFL stand and mount the optical train upside down. Very versitile scopes, perfextly suitable for tissue culture work as well. Most TC flasks will fit on the stage, as to Petri dishes.

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75RR
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Re: Zeiss inverted

#7 Post by 75RR » Fri Oct 07, 2016 10:49 am

The black (brass) Zeiss are a pleasure to use and own. Hope you manage to get it up and running in time.
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Re: Zeiss inverted

#8 Post by Radazz » Sat Oct 08, 2016 3:14 pm

I found an illuminator, that was the easy part.
No idea where to look for the phase inserts for the condenser without buying another condenser.
I anticipate the hardest part to find will be the cap for the mirror hole on the base.
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Re: Zeiss inverted

#9 Post by Oktagon » Mon Oct 10, 2016 5:19 am

75RR wrote:The black (brass) Zeiss are a pleasure to use and own. Hope you manage to get it up and running in time.
Yes.
I think gray Zeiss is brass as well. The base is Zn/Al, but the rest is brass.
I do think the quality of enamel is higher in black line.

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Radazz
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Re: Zeiss inverted

#10 Post by Radazz » Tue Oct 11, 2016 12:52 am

I thought the black Zeiss scopes were japanned.
The type of lacquer used on samurai sword scabbards.
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75RR
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Re: Zeiss inverted

#11 Post by 75RR » Tue Oct 11, 2016 10:24 am

I think gray Zeiss is brass as well.
I think you will find that the "gray" Standards are made of cast aluminum, with just the parts that connect made of brass.
The exception is the grey WL which is solid aluminum with brass connections. The black WL is of course solid brass.
The newer ones (infinity) don't even have that. Cost savings!

Never know what to call them, they look more off white or beige than grey to me.

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Re: Zeiss inverted

#12 Post by Oktagon » Wed Oct 12, 2016 7:59 am

75RR wrote:
I think gray Zeiss is brass as well.
I think you will find that the "gray" Standards are made of cast aluminum, with just the parts that connect made of brass.
The exception is the grey WL which is solid aluminum with brass connections. The black WL is of course solid brass.
The newer ones (infinity) don't even have that. Cost savings!

]

Interesting. I was pretty sure that universal stands are brass with aluminum bases. Even stand with everything stripped weights more than it would if it was aluminum. But than again, I could be wrong.
The laquer used in black stands is some sort of thermally cured multilayer enamel. Allot of scopes of that vintage use the same type of coating.

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75RR
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Re: Zeiss inverted

#13 Post by 75RR » Wed Oct 12, 2016 10:50 am

Interesting. I was pretty sure that universal stands are brass with aluminum bases. Even stand with everything stripped weights more than it would if it was aluminum.
The focusing mechanism common to the Standard WL and the Photomicroscope,
Ultraphot and Universal stands is brass, I think. Certainly solid!
Don't know about their arms. They would be seriously heavy if they were brass!
Another reason to try to get one of those amazingly beautiful black Photomicroscopes.
My comment on the infinity microscopes lacking the brass connectors was based on an article on the Axiostar,
I imagine the rest are the same.
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Re: Zeiss inverted

#14 Post by Oktagon » Wed Oct 12, 2016 11:29 pm

75RR wrote:
Interesting. I was pretty sure that universal stands are brass with aluminum bases. Even stand with everything stripped weights more than it would if it was aluminum.
The focusing mechanism common to the Standard WL and the Photomicroscope,
Ultraphot and Universal stands is brass, I think. Certainly solid!
Don't know about their arms. They would be seriously heavy if they were brass!
Another reason to try to get one of those amazingly beautiful black Photomicroscopes.
My comment on the infinity microscopes lacking the brass connectors was based on an article on the Axiostar,
I imagine the rest are the same.
I know Axioimager II is all aluminum and selicone-coated plastic. No brass sliders even. And that's at
$60K moderately loaded!
I would love to find black photomic or universal stand for sale! The arm I believe is brass even in gray ones, based on the weight, but I have never cut through to see for sure. Hummertone-gray ones and newer dove gray ones weigh the same. The base is surely alumimum.
IS35/ICM405 stands apear to be brass. I had to drill and tap one, and it is not aluminum.

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Re: Zeiss inverted

#15 Post by Radazz » Thu Oct 13, 2016 6:47 pm

Well, there's working, and there's working.
Does brightfield!

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Re: Zeiss inverted

#16 Post by Radazz » Tue Oct 18, 2016 3:15 am

For closure, got this working.
On closer examination, the phase contrast condenser is fully functional.
Does phase all right with the 40 Ph objective.
Does brightfield nicely on the other objectives, except the 100x. Badly scratched.
Still needs some kind of mechanical stage or slide clip.

Did Zeiss ever even make a cover for the mirror mounting hole?
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Radazz
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Re: Zeiss inverted

#17 Post by Radazz » Fri Oct 28, 2016 9:30 pm

Well, this one is now functionally complete. Does even better phased contrast than my Zeiss Standard.

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The insulation on power chord for the illuminator I found crumbled into dust in my hands, so I replaced the halogen bulb with this led canister. Doesn't look so much like something from Frankenstein's laboratory when lit as it would with a bulb.
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Re: Zeiss inverted

#18 Post by Dale » Fri Oct 28, 2016 9:47 pm

How do you polish these enameled finishes?
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Radazz
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Re: Zeiss inverted

#19 Post by Radazz » Fri Oct 28, 2016 9:51 pm

Charles turned me onto a product called Renaissance Wax.
Available from Amazon
Works as well on the chrome as on the lacquer.
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Re: Zeiss inverted

#20 Post by 75RR » Fri Oct 28, 2016 10:51 pm

Did Zeiss ever even make a cover for the mirror mounting hole?
Don't actually know if it did, though I would expect it to have had one. One clue would be if there is a ridge/step along the edge of the hole that a cover could rest on.
The insulation on power chord for the illuminator I found crumbled into dust in my hands,
so I replaced the halogen bulb with this led canister.
Doesn't look so much like something from Frankenstein's laboratory when lit as it would with a bulb.
In order to be able to achieve Köhler the LED has to be in the same position as the element of the original bulb was.

See this photo of a conversion in which the LED is on the same plane as the bulb's element.

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Re: Zeiss inverted

#21 Post by Charles » Sat Oct 29, 2016 3:53 pm

Radazz wrote: Did Zeiss ever even make a cover for the mirror mounting hole?
There are blank covers but they seldom come up for sale. They also have the inserts with a mirror, like this one: http://www.ebay.com/itm/Microscope-Mirr ... Swal5YE8ee
You could just remove the mirror if the rest fits you scope.

Very nice adaptation on that LED.

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Radazz
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Re: Zeiss inverted

#22 Post by Radazz » Sat Oct 29, 2016 7:25 pm

The screw thread base of the canister let me put the emmitter lens right where the filament was.

And there is a shelf and a spring catch in the hole, but I gave up ever finding a cover.

Right now, the only ones I've been looking through are the M20, the B&L sterio scope and ,once in a while, the 100 year old B & L.

Have a B & L 16033-443 on the way, should be here by end of the week.
Not much info, maybe late 1920's?
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