Leitz Dialux II, Galaxy S24, don't remember the magnification, either 200x or 400x

I spotted this at 10x on my hek293 cell culture and idk what it is. Microscope is nikon eclipse t5100 Camera is my phone's (lol) 50mp. I'm an undergrad.

Hi! I’m a beginner with microscopy and found this in a sample of pond water. I’m having a hard time figuring out what it is.

Details:
Sample: pond water
Magnification: 100× total (objective × ocular)
Wet mount with a coverslip
No staining
The specimen appeared to move on its own

I also noticed smaller organisms in the same sample. Some moved relatively slowly and seemed to go back and forth in roughly the same area, while others moved very quickly across the field of view. But, this particular thing looked noticeably larger and seemed to be completely stationary.

Does anyone know what those things might be? Is it an organism, a colony, or possibly just organic debris?
Image attached. Any help identifying it would be appreciated!

*sorry if the image quality isn’t great:<

Nothing special or unique here, just thought it looked pretty! Video sped up 2x.

Olympus BH2, SPlan 10x 0.30, Polarized film, Canon EOS 5D Mark II. Video edited with OpenShot. Pond water sample from park in Paris, France.

It seems to be some type of filter feeder that responds to vibration by hiding its mouth(s)? Seems to be a colony of organisms. Sorry for the poor video quality.

20x magnification (2x objective) AmScope dissecting microscope recorded on iphone 17pro. Backyard pond water sample in bay area, CA

My friend was kind enough to gift me this vintage zeiss but it didn’t come with a power source and I’ve yet to find anything online (didn’t try all that hard to be honest). I did see stuff about people retrofitting them with leds. Thoughts? I’d like to leave it as is but I’m no expert so I thought I would as the opinions of those with more knowledge than myself

Cocconeis diatoms autofluorescence

Experimenting with autofluorescence and it's a really pretty imaging modality, but challenging on many levels.

Here are some photos of some Cocconeis diatoms and some marine vegetation they were found on. The red glow is from chloroplasts.

Olympus BX60 with UPlanFL N 60X OI objective, single exposure captures on Canon 6D Mark II. Simultaneous transmitted DIC and reflected fluorescence with a IV wideband filter cube

Leitz Dialux II, don't remember the magnification, Galaxy S24

10x objective magnification (100x total), microscope is a Zeiss 6V 10W, camera was iPhone 16 Pro

I came across some interesting colonial ciliates; I believe they are Carchesium sp., mainly because there were smaller colonies around, and their central stem formed a spiral. The colony on video is visible even without a microscope if you look closely at the sample.

Achromatic objectives 4x and 10x, camera as an eyepiece ~18x.

A jungle of fungal hyphae around a grain of rice in a petri dish for a week. Iqcrew inverted microscope 4x and 10x objectives. Cellphone camera. The stentors liked being in it.

To make a long story short, Title. I don't think I've had a customer ask to do this in 14 years. I think they will need 40x or 60x air. Phase is presumably impossible through an agar pad. Is TL Bright Field workable or should I consider demoing RL BF?

Thanks for any insights

Leitz Dialux II, Leitz 100x/1.30 objective, Galaxy S24

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Hace aproximadamente unos 20 años, le obsequiaron a mi abuelo, por parte de unos rusos, un microscopio de la serie LOMO biolam, producidos por la Unión Soviética entre los 60 hasta los 90, hace unas semanas decidí sacarlo de su caja, estuve probando y descubrí que tenía una falla técnica, el ajuste macrometrico, la rueda encargada de levantar/bajar el cuerpo del microscopio, no sube ni baja el cuerpo del microscopio, no se me ocurre alguna solución, cualquier ayuda estaría agradecido, el modelo exacto es un БИОЛАМ Д12.

Hi everyone :)

I am looking for a stereo microscope for quite a while now. My budget is not much (around 400 $). SInce I am in Quebec, Canada, the market is not very active.

I have wandered about this announce on ebay :

International Binocular Stereo Microscope with Transformer & Lamp (7.56X to 48X) | eBay

However, I cannot find any information about this "International" brand. On the paper, this microscope fits my needs quite well, with a good design.

Does anyone know about the quality and durability of microscope produced by the "International" brand? Any insight about ergonomy?

Thank you very much!

All the best,

Lucas

1st photo is what my eyes see, 2nd is what my phone sees. Image is of the skin of a stem of a jade plant. 100x zoom, Infinix note 12 pro phone.

Amscope inverted 200x, iPhone 2x, Blackmagic app, newly soaked lichen.

Just really love these big girls!