Search found 283 matches

by wstenberg
Wed May 05, 2021 1:47 pm
Forum: Specimens, samples and slides
Topic: Two-blades method - possible to improve?
Replies: 6
Views: 486

Re: Two-blades method - possible to improve?

There is a double scalpel knife, used in periodontology. It's often called a Harris knife, after the author who first described the surgical technique. They come in a variety of widths. I wonder if they would be useful for thin sections? Both blades are parallel, though, not angled like your descrip...
by wstenberg
Tue May 04, 2021 8:42 pm
Forum: Specimens, samples and slides
Topic: Round slides?
Replies: 7
Views: 466

Re: Round slides?

Fan,
I like your idea of cutting down regular slides. Maybe I could cut small glass squares, and still tape them to a round SEM stub? It really doesn't have to match exactly (although round would look nicer). Squares would be so much easier to cut.
by wstenberg
Tue May 04, 2021 8:37 pm
Forum: Specimens, samples and slides
Topic: Round slides?
Replies: 7
Views: 466

Re: Round slides?

Thanks all for the help. I've thought of using coverslips as slides... I've done that in the past for certain projects (I still have some mini-Coplin jars for staining coverslips), but these slides are going to get some rough handling- I don't thing coverslips will hold up as slides! The specimens w...
by wstenberg
Tue May 04, 2021 8:29 pm
Forum: My microscope
Topic: My Zeiss
Replies: 12
Views: 1616

Re: My Zeiss

I just noticed similar electrical plugs on a wafer inspection probe station. That's my new theory about the stand. Mine originally came with a strange turret and non-RMS objectives. It currently serves as my Tessovar stand!
by wstenberg
Mon May 03, 2021 6:14 pm
Forum: Specimens, samples and slides
Topic: Round slides?
Replies: 7
Views: 466

Round slides?

Does anyone know a source for round microscope slides, about 25mm glass?

Round coverslips are common, acrylic discs are common. I can't seem to locate glass slide discs.

They need to fit on a 25mm round SEM stub, after imaging with the light microscope...

Thanks!
by wstenberg
Sat Mar 27, 2021 5:43 pm
Forum: Specimens, samples and slides
Topic: How to explain it?
Replies: 16
Views: 1366

Re: How to explain it?

wstenberg wrote: ↑Fri Mar 26, 2021 9:51 am For many reasons, this type of periodontal clinical microscopy died out in the 1980's. I'm sure there are still many weird organisms living in there, unknown to science, but no one is looking for them any more. But why would people willingly abandon such a...
by wstenberg
Fri Mar 26, 2021 2:51 pm
Forum: Specimens, samples and slides
Topic: How to explain it?
Replies: 16
Views: 1366

Re: How to explain it?

Many years ago, when I was doing many clinical samples of oral microflora, new would occasionally see organisms that could not be identified (in addition to the normal types of oral amoeba). This was doing phase-contrast or darkfield on fresh, living samples. This was once a routine study for patien...
by wstenberg
Fri Mar 26, 2021 2:31 pm
Forum: Beginner's corner
Topic: Has anyone ever seen a digital microscope like this before?
Replies: 14
Views: 923

Re: Has anyone ever seen a digital microscope like this before?

I have had the microscope demonstrated at my lab several times. Very nice! The company representatives have been very friendly and willing to discuss prices, etc. but there are many possible configurations which affects the cost. I was looking at the BZ-X800, which is a fully automated fluorescence ...
by wstenberg
Tue Mar 16, 2021 9:36 pm
Forum: My microscope
Topic: My Zeiss
Replies: 12
Views: 1616

Re: My Zeiss

I have the exact same stand and coarse focuser. Mine came with a monocular head and a ~3x long-working-distance objective that look typical for a mechanical shop microscope (although I guess they could also be used for hardness tests). Wow, great information. Mine had some parts of the head remaini...
by wstenberg
Mon Mar 08, 2021 9:49 pm
Forum: Microscopes and optics
Topic: Zeiss Axiomat Issues
Replies: 9
Views: 638

Re: Zeiss Axiomat Issues

personal message sent
by wstenberg
Mon Mar 08, 2021 3:09 pm
Forum: Microscopes and optics
Topic: Zeiss Axiomat Issues
Replies: 9
Views: 638

Re: Zeiss Axiomat Issues

Well, Congratulations on the Axiomat. With certain stage configurations, you can't rotate the turret without lowering the turret or lifting the stage. There's no way around it. The working distance is too short. If you switch to upright configuration, you won't have the problem. The side mount camer...
by wstenberg
Thu Mar 04, 2021 11:46 pm
Forum: For forum members who want to buy and sell equipment
Topic: microscope binoculars
Replies: 8
Views: 570

Re: Swift? binoculars

OK, does anyone have a Swift microscope suitable to test one?
$5 plus postage.
But you have to report back to me, so I can properly label the other 4 for sale.
Thanks!
by wstenberg
Thu Mar 04, 2021 7:36 pm
Forum: For forum members who want to buy and sell equipment
Topic: microscope binoculars
Replies: 8
Views: 570

Re: microscope binoculars

Might fit a Swift; I don't have any here to test...
by wstenberg
Thu Mar 04, 2021 5:37 pm
Forum: For forum members who want to buy and sell equipment
Topic: microscope binoculars
Replies: 8
Views: 570

Re: microscope binoculars

I can't tell if it's a telan lens or just the surface of a prism...
by wstenberg
Thu Mar 04, 2021 4:00 am
Forum: For forum members who want to buy and sell equipment
Topic: microscope binoculars
Replies: 8
Views: 570

Re: microscope binoculars

39mm dovetail. There are no markings on these. Adjustable interocular distance. Each side focuses independently.
by wstenberg
Thu Mar 04, 2021 2:38 am
Forum: For forum members who want to buy and sell equipment
Topic: microscope binoculars
Replies: 8
Views: 570

microscope binoculars

I don't know what microscope these fit. They appear to be new. Opened just for these photos. A good deal if you know what they are and need a few.
$50 for all 5 plus postage from Oregon USA.
by wstenberg
Sun Feb 28, 2021 9:45 pm
Forum: For forum members who want to buy and sell equipment
Topic: Zeiss Inverted Scope
Replies: 4
Views: 675

Re: Zeiss Inverted Scope

Still have it if anyone is interested...
by wstenberg
Wed Feb 24, 2021 6:19 pm
Forum: My microscope
Topic: My Zeiss
Replies: 12
Views: 1616

Re: My Zeiss

All I can figure about the Invertoskop is that the engineers wanted to make many parts interchangeable with the Standard. It's a nice design, but I agree that it must be placed on a box to get the correct viewing height.
by wstenberg
Sat Feb 20, 2021 4:45 pm
Forum: My microscope
Topic: My Zeiss
Replies: 12
Views: 1616

Re: My Zeiss

OH, yes. After this experiment, I put it back on the Invertoskop.
I have two Invertoskops, and I'm trying to sell one of them. My lab is getting crowded! I'm trying to be a researcher, not a collector...
by wstenberg
Sat Feb 20, 2021 6:14 am
Forum: Illumination Techniques
Topic: Frogs "epi-fluores"
Replies: 1
Views: 944

Re: Frogs "epi-fluores"

But where can you find a marbled salamander?
by wstenberg
Sat Feb 20, 2021 5:58 am
Forum: Illumination Techniques
Topic: Anyone try one of these LED setups?
Replies: 9
Views: 1815

Re: Anyone try one of these LED setups?

I can think of a few applications. I wonder if it's any good?
by wstenberg
Fri Feb 19, 2021 6:46 pm
Forum: My microscope
Topic: My Zeiss
Replies: 12
Views: 1616

Re: My Zeiss

Good eye. Thanks for comments. It's a Zeiss micro-hardness tester stand. Then a small rack from an industrial epi-microscope. Then a stage holder from a Stereomicroscope. And an inverted Invertoskop D. The Stage is some miscellaneous shop-built stage holder with a Zeiss stage. Parts from at least 5 ...
by wstenberg
Thu Feb 18, 2021 12:49 am
Forum: My microscope
Topic: My Zeiss
Replies: 12
Views: 1616

My Zeiss

100% Carl Zeiss.
Any else have one like this?
by wstenberg
Wed Feb 17, 2021 3:27 am
Forum: For forum members who want to buy and sell equipment
Topic: Japanese folding WWII Army microscope
Replies: 2
Views: 540

Re: Japanese folding WWII Army microscope

I actually found two. I bought this one first, then found another one. The second one has the wooden case and is in great condition and I'm keeping it. From the serial numbers, my keeper version was probably made right after the war, while this one was made right in the middle of the Pacific War. I ...
by wstenberg
Sun Feb 14, 2021 8:03 pm
Forum: For forum members who want to buy and sell equipment
Topic: Japanese folding WWII Army microscope
Replies: 2
Views: 540

Japanese folding WWII Army microscope

This a Japanese Tiyoda MKQ folding microscope used by the Imperial Japanese Army in WWII. It was brought back by a US soldier as a souvenir during the American Occupation of Japan. The mirror is not original, but everything else seems intact. It probably hasn't been cleaned since 1945, but I did lub...
by wstenberg
Sun Feb 14, 2021 6:55 pm
Forum: For forum members who want to buy and sell equipment
Topic: Zeiss Inverted Scope
Replies: 4
Views: 675

Zeiss Inverted Scope

Anyone need one of these? Needs oculars and objectives.
$150 plus shipping from Oregon, USA.

Thanks!
by wstenberg
Sun Feb 14, 2021 6:30 pm
Forum: For forum members who want to buy and sell equipment
Topic: Antique B&L Brass Scope
Replies: 0
Views: 362

Antique B&L Brass Scope

Old Bausch and Lomb brass scope. I haven't used it. It's been sitting on my shelf for years. Includes 3 oculars and 3 objectives, and whatever other little bits you can see in the photo. Serial number 19389. This has not been cleaned... Probably from around 1900 or so. Includes the wooden case, but ...
by wstenberg
Sat Oct 03, 2020 9:44 pm
Forum: For forum members who want to buy and sell equipment
Topic: Zeiss Universal Parts #4
Replies: 1
Views: 810

Zeiss Universal Parts #4

$35 plus postage from Dallas. Probably medium flat rate box.
As Is.
Has head, Optovar, and turret. Plus an unusual stand.
Thanks for looking.
by wstenberg
Sat Oct 03, 2020 9:42 pm
Forum: For forum members who want to buy and sell equipment
Topic: Parts #3
Replies: 0
Views: 713

Parts #3

$35 plus postage.
For Zeiss.
Medium flat rate box.
As Is.
Thanks for looking.
by wstenberg
Sat Oct 03, 2020 9:40 pm
Forum: For forum members who want to buy and sell equipment
Topic: Parts #2- sold
Replies: 1
Views: 705

Parts #2- sold

$35 plus postage. Medium flat rate box.
As Is.
Thanks for looking.