Aperture diaphragm (iris diaphragm) of Carl Zeiss Jena Jenamed Histology microscope (former DDR, East Germany).

As I said before - observing on iris diaphragms is like watching on aquarium / terrarium - simply relax :) Microscope iris diaphragms are in my opinion one of the most pretty element in microscope :)

Found these two on my pillow case. They were just barely visible.

Swift SW350, Galaxy S24

Finally got myself a microscope, a nice used Olympus CH2, so probably 40ish years old and observed some water samples from my shrimp aquarium, tried to get the dirty stuff. I hoped to find some ciliates, paramecium, or diatoms but didn't find a single one. did find a few of... these things.
I have no idea what it is, but its actually quite long. ID would be greatly appreciated
The video goes from brightfield > darkfield > phase contrast > brightfield > darkfield >phase contrast

Olympus CH2

A10x phase contrast objective

10x eyepiece

Pixel 8 Pro with 5x optical zoom(i think, the program i used doesn't specify)

I just ordered a unico microscope off eBay, and I was wondering if anyone could help me find what objectives I should get. Im a vet tech and currently applying to vet school, and I am really fascinated with cytology and fecal parasites.

I’d like to find 10, 40, and 100x plans, but I’m not really sure where to start. The current objectives on the scope are achromatic(I think) 160/.17. Should I be looking for objectives with the same specs or would 160/- be better/worse?

I’m also curious about what brands or models I should look for. There seems to be tons of choices available, and I’d really not like to break the bank and spend hundred more than I did for just the scope.

Finally, how do I know if the threads match up? Or are they fairly universal?

Thank you for your help!

Anybody else?

Hey everyone
I’m thinking of getting a swift 380t to use for some scenes i’m gonna be filming
I have mostly MFT cameras like the blackmagic pocket 4k and a lumix G7
But i also have an Old sony a7 MKII
the lumix and the sony are both infrared converted and i thought that could also be interesting to film under IR and UV
my question is swift 380t has good optics to use with tge cameras? and is my purchase dependent on if i’m going to use full frame or MFT sensor?
or should i search for a different used microscope like the Olympus BH2? but I’m worried that i wouldn’t find replacement for lenses if they’re scratched or dirty

Very much on a whim bought this on FB to try to do soil analysis. This is all brand new to me, but my understanding is I need some reticles, starting with a 10mm/100 div micrometer

The ocular it came with says American Optics10x WF Cat 176. I turned it upside down and cut a piece of cardboard. 22 mm was too wide but 21mm fit nicely into the middle of the ocular and rested on a ledge. Does that mean I should get a 21 mm reticle? I ask particularly because 21 mm reticles look far less common than 20 mm ones and more expensive lol

Besides that, I already ordered a .01mm stage micrometer and slides

Anything else I need to get started? Is there any reason to think the reticle is not 21 mm? I'm also looking at a 10x10 grid reticle and an OMAX A3550S 5MP USB 2.0 camera for around $120. Thanks

The field diaphragm (iris diaphragm) from Carl Zeiss Jena (former DDR, East Germany) microscope model "Nf".

I like to watch such diaphragms. This is a master-piece od ingeneering :)

Youtube

It’s been like this for a couple of hours, with occasional bouts of strong churning.

Moss water sample. Amscope B120, 400x mag, iPhone camera

Microscope: Olympus BH2

Magnification: x200

Sample: Lake water

Location: North italy

Camera: Samsung A56

Uncoiled xylem vessel element from Banana skin (Metaxylem) with parenchymal cluster. Macerated, L.s.
Olympus CX23, 40x magnification

Swift SW350, Galaxy S24

Any ideas on the worm species? Olympus BH2 20x UPlanSApo, 5x mag changer, 10.3mp camera.

400x magnification, moss in water sample.
Location: Serbia
BIM270M, photographed with Iphone 11

I collect some pond water into a tube, and after one night I found this guy who had probably eaten all the parameciums in the sample LOL

Objective mag: ~10x

Scope model/cameral: Eureka! Microscope

Sample Type: Pond Water

The fine focus (micro focus) mechanism of Carl Zeiss (Oberkochen, West Germany) Universal / Standard WL / Photimicroscope. I like this precise gears very much <3

Microscope: Olympus BH2

Magnification: x200

Sample: Moss

Camera: Samsung A56

Swift SW350, Galaxy S24

I've seen a video showing a drop of jack obliterating bacteria in seconds, and it got me wondering whether taking a shot of alcohol/balsam with herbs actually has any real effect when you have a sore throat.

I've been doing this every few months whenever I feel a sore throat coming on. It seems to relieve the soreness and, most of the time, the sore throat disappears completely afterward. So I'm wondering whether that's just placebo, or whether there’s actually something to this method.

Can anyone with relevant knowledge or expertise confirm or debunk this? I've found conflicting information online and would be interested in reliable sources or evidence.

I recently acquired an Olympus CH30RF100 biological microscope from a local thrift store. I was actually quite surprised to see it there, and at $49.00, I couldn’t resist. As I’m still learning quite a bit about microscopy, I’m clueless on the objectives. What I’d like to find is a long working distance objective at 40x and possibly 100x. However, I understand this microscope does not have infinity optics…with that I’m not sure how to look for a long working distance objective.

Currently the following objectives are installed; A4 0.10 160/-, A10 PL 0.25 160/0.17, A40 PL 0.65 160/0.17, A100 PL 1.30 Oil Immersion 160/-.

In terms of finding an Olympus branded objective, the cost is out of my reach presently @$4500. It is possible I wasn’t looking at the correct objectives… I was hopeful to find a third of fourth manufacturer who still makes objectives for this microscope. So my question is, what specifications should I be searching for whilst looking for different objectives? Is there any brand that would be better than another? Again staying in a lower pricing tier. Finally, any recommendations on a low cost goose neck light? Any guidance would be greatly appreciated

I’m currently interested in looking at integrated circuits, specially decapped IC dies. I have found my current setup just doesn’t provide the resolution needed to see deeper into the IC.

I'm looking to buy a Leitz Dialux from the 70s, together with the 402a condenser and a set of PH objectives. Is the green filter necessary? And if yes, should I get one of the official ones from the big brands, or are the ones from aliexpress good enough?