MicrobeHunter.com Microscopy Forum

Universal/Phomi heads are not readily exchangeable. There are little red/orange/yellow stickers with 3-4 digits on the head and foot (and on the Phomi power supply) that indicate any set of components with the same numbers have been optically precisely matched (and electronically for the Phomi expos...

I wish I had an appropriate eyepiece for direct projection, I tried a 10x Kpl-W once and got good quality images but as you said a rather small part of the image was being projected. Because of this I have to increase exposure or ISO so I switched back to afocal at the expense of some chromatic aber...

If you feel the image through the eyepiece is better than what you get in the camera you could try to alter your direct projection setup. Maybe try a different eyepiece (lifted by a couple of millimeters or so), if you have a Kpl one that might work well. Btw which one of your Zeiss scopes are you u...

How do you project the image onto the camera sensor? Direct or afocal projection?

Thats just one solution to the spherical aberration problem. Have a look at this link, it provides an in depth explanation of the problem and several solutions https://www.microinformatics.net/index. ... microscope

Even if you set the correction collar to perfectly match the coverslip thickness the image might still lack contrast if the water column it too tall. Some people use thinner coverslips (no. 1) for plankton observations. So condenser prism II with the 40x/0,65 Plan DIC prism?

So the objective is 40/0.95 Zeiss Planapo or Jena Apo? Even though these have a correction collar for limiting the amount of spherical aberration its still difficult to get sharp contrast unless your sample is really thin, so much so that most of the bigger organisms will be crushed under the covers...

Surprising that there were flagellates in the parsley infusion, do you think these came from soil contamination?

Regarding video I would get rid of the phase plate for starters, never found that particularly useful for sharp contrast. What objective and prism combinations did you use here?

The other possibility is " beware of staring straight at the lamp filament or beam". Sorry, concurrent posting - does look like a lamp filament! I am all for helping hard up relatives out, but this is silly! . https://www.microbehunter.com/microscopy-forum/download/file.php?id=25863&sid=08674cf4796...

Newer Zeiss lamphouses have a heat blocking filter which you can spot by its red reflective tint. Older ones (like the ones me and 75' use) don't have it. https://i.ebayimg.com/images/g/4IYAAOSwkWRhgBVG/s-l1600.jpg There is a KG1 (IR blocking) filter in the base of some of the large research scopes ...

Nice catch!

Useful tips on repairing delaminated DIC prisms: viewtopic.php?f=24&t=8830

Great quality as always!

I have really enjoyed reading about these experiments with car xenon lights. Do you have a link describing those experiments? Sounds intriguing. Here's is a link on this page: https://www.microbehunter.com/microscopy-forum/viewtopic.php?f=12&t=14018 It started with a thread on the Amateur Microscop...

viktor j nilsson wrote: ↑

Fri Oct 29, 2021 9:54 am

I have really enjoyed reading about these experiments with car xenon lights.

Do you have a link describing those experiments? Sounds intriguing.

Awesome! Thanks for posting.

patta wrote: ↑

Sun Oct 24, 2021 5:23 pm

What a cool project! I don't think I've ever seen mica in the wild but most likely I haven't been paying attention. As you pointed out the success of this project depends on a high quality source of mica so my question would be where do you find the finest mica?

Stunning! What are the purple granules for?

What a bizarre protist, lightning fast too! Thanks for sharing.

Awesome, really cool how the muscles light up in different colors depending on their orientation.

Nice find, I'm getting dizzy just watching it. What magnification is this?

Digested Blepharisma maybe?

Thank you, Wes. I find that, despite the humble equipment or technique, microscopy offers, even to the newbies, chances to document interesting events. Absolutely agree! Sure fancy equipment might produce some interesting results but in the end its the specimen and its preparation that count the mo...

Air purifiers hands down, one of the best investments I ever made.. In essence its just a glorified fan with a HEPA filter in front of it but it does absolute wonders. Highly recommended!

Nicely documented!

Nice! Where did you find it?

That is excellent! Your videos are top-notch!

Nice video and very appropriate use of oblique illumination!

Excellent stack!

Now that's just great, not only the quality of your DIC videos but also the organisms you document especially this one! Very cool finding, as fair as I've heard Amoebophilus is rare, personally I've never seen on. Could you tells us a bit more about the source of the infected amoeba, food supplement...