Search found 225 matches

by wstenberg
Tue Mar 17, 2020 9:28 pm
Forum: Microscopes and optics
Topic: Inverted Stereomicroscope
Replies: 11
Views: 2070

Re: Inverted Stereomicroscope

Thank you everyone!!!
There it is! and it even has an LED ring light!
I knew someone here would have the answer.
by wstenberg
Tue Mar 17, 2020 8:48 pm
Forum: Microscopes and optics
Topic: Inverted Stereomicroscope
Replies: 11
Views: 2070

Re: Inverted Stereomicroscope

What would be the specific advantages of an inverted stereo? OK, what if you want to examine the ventral surface of a small aquatic invertebrate, perhaps a small insect? You could flip it over, but it would flip right back. You could kill it and then flip it over. But what if you want to observe so...
by wstenberg
Tue Mar 17, 2020 4:17 pm
Forum: Microscopes and optics
Topic: Inverted Stereomicroscope
Replies: 11
Views: 2070

Inverted Stereomicroscope

Just wondering... Are there inverted stereomicroscopes? I can't remember seeing one, and a google search didn't come up with anything. I've seen horizontal stereomicroscopes, but not inverted. A lot of things I'm interested in are visible in the 10x range. I suppose a regular inverted scope with a l...
by wstenberg
Tue Mar 17, 2020 3:28 pm
Forum: For forum members who want to buy and sell equipment
Topic: Zeiss Axiomat
Replies: 5
Views: 2405

Re: Zeiss Axiomat

The two sliders on the front: The top one is the lambda plate, for polarized light. The lower is the analyzer for Polarized light and DIC (It's labeled DIK; I think that's German!). There are a lot of sliders and controls. The engineers wanted full control of the optical path when they designed this...
by wstenberg
Mon Mar 16, 2020 11:31 pm
Forum: For forum members who want to buy and sell equipment
Topic: Zeiss Axiomat
Replies: 5
Views: 2405

Zeiss Axiomat

If you've ever wanted to own an inverted Zeiss Axiomat, now is the time. I've gone through it and everything seems to work. Includes the polarizer and analyzer sliders as well as the two iris sliders. The photo port is build into the side. One binocular with two 10x oculars. You can later add a seco...
by wstenberg
Mon Mar 16, 2020 1:55 am
Forum: Microscopes and optics
Topic: Zeiss Experts: What Model is This?
Replies: 26
Views: 6344

Re: Zeiss Experts: What Model is This?

The Standard WL come up on eBay often enough. There was a nice one just a few weeks back. Here's a few photos of my Standard WLs. Maybe just to show that they can be configured in a multitude of ways, from simple to complicated. The black is probably as good as the gray. Either is fine.
by wstenberg
Sat Mar 14, 2020 5:36 pm
Forum: Microscopes and optics
Topic: Zeiss Experts: What Model is This?
Replies: 26
Views: 6344

Re: Zeiss Experts: What Model is This?

The Standard WL is a great research grade microscope. It has parts interchangeable with the other Standards, as well as the Universals.

You can send me a PM for sources.
by wstenberg
Sat Mar 14, 2020 4:32 pm
Forum: Microscopes and optics
Topic: Zeiss Experts: What Model is This?
Replies: 26
Views: 6344

Re: Zeiss Experts: What Model is This?

That's a Zeiss KF2. It's a variation of the Standard series, similar to the junior model. They have an internal illuminator. The supplied binocular has mirrors instead of prisms, so it's lighter and cheaper. Many parts are interchangeable with the bigger Standards, the obvious exception being no opt...
by wstenberg
Tue Mar 10, 2020 2:06 am
Forum: For forum members who want to buy and sell equipment
Topic: Zeiss Universal UEM Industrial
Replies: 1
Views: 4593

Zeiss Universal UEM Industrial

Here's a stand for a Zeiss Universal UEM. You can take all the parts off of your Universal and move them over to this heavy-duty stand. Many advantages, for example, you can raise and lower both the upper head and lower stage. Gives you a lot more range. I need to make more room for recent microscop...
by wstenberg
Mon Mar 09, 2020 10:04 pm
Forum: Identification help
Topic: Good Book for Microbe Identification?
Replies: 7
Views: 3819

Re: Good Book for Microbe Identification?

Wassertropfen, indeed.
Everything sounds more scientific in German!
by wstenberg
Sun Mar 08, 2020 5:10 pm
Forum: Beginner's corner
Topic: Polarising
Replies: 19
Views: 10241

Re: Polarising

At work we use plastic slides for thin sections, and we first grind them flat and polish to 800 grit. Then use use a refractive index matched adhesive that seems to fill in the polishing marks. It's all part of a system called Technovit by EXAKT. Here's a link to a video showing the adhesive and how...
by wstenberg
Sun Mar 08, 2020 4:16 pm
Forum: Introduce yourself
Topic: Greetings from Oregon
Replies: 8
Views: 4055

Re: Greetings from Oregon

Greetings and welcome from an ex-Oregonian (Seaside).

Planning on heading back someday!!!

Lots of good microscopy info here.
by wstenberg
Sun Mar 08, 2020 12:13 am
Forum: Beginner's corner
Topic: Zeiss DIC- could this work?
Replies: 7
Views: 4431

Re: Zeiss DIC- could this work?

Thanks everyone. Many good ideas!
I'll experiment a little bit, and report back if I get it to work
by wstenberg
Fri Mar 06, 2020 5:51 pm
Forum: Beginner's corner
Topic: Zeiss DIC- could this work?
Replies: 7
Views: 4431

Zeiss DIC- could this work?

I admit I don't know anything about DIC to begin with... I have some epi-DIC prisms and objectives, like the one imaged here. If I put an INKO condenser, such as the one pictured, will it DIC? (I don't yet have a condenser, but might consider buying one) I know it can't be so simple, but I'm sure so...
by wstenberg
Thu Mar 05, 2020 2:48 pm
Forum: Beginner's corner
Topic: Discovery of Microorganisms + Advice on Research Microscope
Replies: 33
Views: 14651

Re: Discovery of Microorganisms

Here's a link to some helpful bacterial information from the UK microscopy site. http://www.microscopy-uk.org.uk/mag/artjan04/wdbacteria.html The methods useful for amateurs are liquid mixed cultures. Selective media and solid media like we use in the microbiology laboratory are more problematic for...
by wstenberg
Thu Mar 05, 2020 3:50 am
Forum: Beginner's corner
Topic: Discovery of Microorganisms + Advice on Research Microscope
Replies: 33
Views: 14651

Re: Discovery of Microorganisms

Ok, I'm not a microbiologist, but I have spent a few years working in a microbiology lab. So I'll jump in. Agree that there are so many unknown bacteria. You could go out, grab a bucket of dirt out of your backyard, and find new organisms. Most organisms are described by their biochemical actions, w...
by wstenberg
Wed Mar 04, 2020 9:43 pm
Forum: Microscopy accessories
Topic: DIC, Analyzers, and Compensators
Replies: 6
Views: 4607

Re: DIC, Analyzers, and Compensators

Ted,
Exciting project.
Please post some photos.
Maybe we can all learn something from your efforts!

Good luck with it!
by wstenberg
Wed Mar 04, 2020 5:16 pm
Forum: Digital processing
Topic: Digitizing 35mm micro photography tranparency images
Replies: 11
Views: 5490

Re: Digitizing 35mm micro photography tranparency images

Good Tips, Thanks!

I'm now thinking of getting flatbed scanner for digitizing 4x5 inch negatives.
by wstenberg
Mon Mar 02, 2020 11:07 pm
Forum: Microscopes and optics
Topic: Frustration!
Replies: 64
Views: 16027

Re: Frustration!

Oh, OK. Those stage gears can be a problem. Still I think not insurmountable. I have a cheap pin wrench; I think I paid 25 dollars for it. The real microscope repairman who comes by my lab has a nice one from ThorLabs. I'm sure it's much more expensive. You can post photos of the problem, and maybe ...
by wstenberg
Mon Mar 02, 2020 9:47 pm
Forum: Microscopes and optics
Topic: Frustration!
Replies: 64
Views: 16027

Re: Frustration!

I use a Zeiss Universal. The focusing mechanism is modular. It's a block that can be removed by taking out 6 screws. Then you can put a new one on. It is the same focusing rack as the Zeiss Standard WL, so it's possible to find a good one for under $100. I have changed out many over the years. I thi...
by wstenberg
Mon Mar 02, 2020 3:41 pm
Forum: Home-made microscope adaptations
Topic: Stereomicroscope stand
Replies: 5
Views: 4021

Re: Stereomicroscope stand

OK, that sounds good. I would like to use the B&W film for monochromatic fluorescence microscopy. Then scan the negatives and convert greyscale to color. Then digitally merge the images taken with different filter combinations. I know people once used film for fluorescence microscopy back in the day...
by wstenberg
Sun Mar 01, 2020 5:19 pm
Forum: Home-made microscope adaptations
Topic: Stereomicroscope stand
Replies: 5
Views: 4021

Re: Stereomicroscope stand

This is the first roll of film in the analog camera. Trying for some fine grain monochromatic photos. I'm using the original Zeiss controller. Once I get it working with the 35mm, I'll switch to the 4x5 inch format. I've already bought the large film, but holding off until I get the bugs worked out....
by wstenberg
Sun Mar 01, 2020 7:11 am
Forum: For forum members who want to buy and sell equipment
Topic: Bausch and Lomb StereoZoom 3
Replies: 4
Views: 3598

Re: Bausch and Lomb StereoZoom 3

OK, Great. Send me a PM with your shipping info. Thanks!
by wstenberg
Sun Mar 01, 2020 3:39 am
Forum: For forum members who want to buy and sell equipment
Topic: Bausch and Lomb StereoZoom 3
Replies: 4
Views: 3598

Bausch and Lomb StereoZoom 3

This is a Bausch and Lomb StereoZoom 3. No oculars included.
The aluminum alignment ring inside is cracked so it has double vision. The right and left eye images cannot be merged.
Might be good for parts, or for one-eyed microscopists.

One dollar plus actual shipping cost.
by wstenberg
Sun Mar 01, 2020 3:27 am
Forum: Home-made microscope adaptations
Topic: Stereomicroscope stand
Replies: 5
Views: 4021

Stereomicroscope stand

I had a photomicrography stand, just taking up space in the closet. I needed an extended range stereomicroscope stand, and this seemed to work out fine. When I cut the tube, there was paper inside. It was an empty cigarette package from Germany. An old style, looked like from the 1960s. Maybe someon...
by wstenberg
Wed Feb 26, 2020 7:43 pm
Forum: Home-made microscope adaptations
Topic: Rotating stage
Replies: 2
Views: 2698

Re: Rotating stage

Sounds good. Can you post a photo
by wstenberg
Mon Feb 24, 2020 2:25 am
Forum: Beginner's corner
Topic: What is this Microscope part?
Replies: 3
Views: 2419

Re: What is this Microscope part?

Well, that explains the pancratic condenser somewhat. Thanks.

Doesn't look anything like what would mount on this rectangular part... Maybe it's some sort of filter carrier???
by wstenberg
Sun Feb 23, 2020 5:46 pm
Forum: Beginner's corner
Topic: What is this Microscope part?
Replies: 3
Views: 2419

What is this Microscope part?

Dear Forum, I am working on my Zeiss Universal UEM, and I'm down to the substage base... What is this dovetailed attachment over the field diaphragm? I've looked at Google photos of other people's UEM microscopes, and they don't have it... My first guess is that it is a mount for a pancratic condens...
by wstenberg
Thu Feb 20, 2020 5:07 pm
Forum: My microscope
Topic: Zeiss incident light microscope
Replies: 4
Views: 4520

Re: Zeiss incident light microscope

I just saw a book with this microscope on the cover!

I've asked the library to see if they can loan me a copy of it.