MicrobeHunter.com Microscopy Forum

To all: thanks for the nice comments. @MichaelG: parasitism by this fungus on amoebae is pretty rare; nature is full of wonders! A couple of notes: -the oval objects trailing behind the amoeba are actually conidia which contain spores -the question of why the conidia aren't just eaten by the amoeba ...

Does anyone have any videos or links to videos of protists taken using a global shutter camera?

A couple of years ago, I saw for the first time an amoeba parasitized by the fungus Amoebophilus . Just recently, I made a collection in which there were many amoebae parasitized by this fungus. A photo of one amoeba is shown below. amoeba_fungus-1.jpg You can see the spores of the fungus trialing o...

Really nice photos! Could you provide more details about your microscope?

I have been seeing Hyalotheca in large numbers in my recent collections. This is a filamentous desmid in which individual desmid cells stack one on top of the other to produce long filaments. Hyalotheca is also distinguished by having a thick mucilaginous sheath surrounding the cell body and there a...

Thanks for the nice comments!

This one came from my favorite place to collect and I have seen more unique and unusual critters from this source than any other. Never disappoints!

I show a photograph of the amoeba Pompholyxophrys . This interesting amoeba, which I had never seen before, is related to the common Nuclearia . As you can see, the amoeba is covered with siliceous round structures called perles. Delicate filiopoda extend through the perles to capture prey, and the ...

Jochen, I am continually impressed at how you repurpose old Zeiss gear for new purposes, like a flash unit from an old lamp house. Over the years, I have obtained bits and pieces of old Zeiss parts and have wondered either what they are or how they might be used. Not parting with any of it has been ...

Thanks to all for your kind comments. @macnmotion: You may have seen this amoeba but just not noticed it. I think they are pretty common, as I have seen them in collections I have made from several different ponds. They are small amoebae that at low power (16x with 12.5x oculars in my case) don't ap...

Nice video! Have you noticed that there are different sizes of this ciliate?

Cool picture!

In a recent collection, I observed a number of individuals of the amoeba Cochliopodium bilimbosum. This is an interesting amoeba because it has a hump-like cell body and an advancing, flattened pseudopod. Small pseudopods can extend from the front of the large flattened pseudopod. The cell body cont...

Hi Don,

Thanks for your comment. When you pull a sample out, you can tell it is mesh-like and not individual strands like other filamentous algae. Usually you also have to tear off a big from a larger mass to place on a slide for observation.

Tim

This is the common freshwater alga Hydrodictyon, also know as the water net. This alga can form very large, net-like colonies of interconnected cells; I have had them grow in the collection jars by my window. The cells also have large vacuoles. I am showing a photo taken with DIC (objective is a 40x...

Hello Jean-Marc, I saw a post that you had from some time ago on photomacrography.net in which you described a modification of your microscope for DIC. Here is the post: https://www.photomacrography.net/forum/viewtopic.php?f=25&t=16041&p=102149&hilit=aristoplan#p102149. Is the microscope that you sh...

Hi Adam, I also have the old Zeiss DIC system and was interested to see your experience with different objectives. I think I was very lucky (considering what apochromat wrote in his post) that the microscope I purchased had the original setup that was configured on the microscope when it was origina...

I just read a fascinating and extremely informative post on the German microscopy forum concerning the "old" DIC system on the finite series of Zeiss microscopes. It was written by a contributor on this forum, apochromat. For those who don't read German (like me), I think the translation by Google i...

That is one impressive microscope, both in size and quality! Thanks for sharing the photos. Look forward to seeing your photos and videos in the "Pictures and Videos" section. I am sure you have some impressive contributions to make.

Tim

Bonjour, Jean-Marc! Welcome to the forum! It would be great if you could tell us about your impressive microscope on the "My Microscope" section on this forum. Lots of pictures of your setup would, I'm sure, appeal to a lot of the users of this forum. Nothing better than seeing the microscopes of fe...

On closer inspection, I agree with WWWW that this rotifer is Limnias melicerta.

This is a rotifer, possibly Beauchampia. The oblong objects in the tube are rotifer eggs.

Hi Greg, just saw this post. A company that services microscopes told me that they use ROR Optical Lens Cleaner to remove oil from 100X objectives. I now use this and it works well.

If you are interested in a different approach, this link has a large number of ways to set up a flash for photomicroscopy.

https://www.photomacrography.net/forum/ ... hp?t=26185

Thanks, MicroscopyUniverse and einamn, for your nice comments! It is amazing to me that a scope of this age produces such excellent images and mechanically works as it does. A real testament to the quality of Zeiss optics and craftsmanship.

Hi Don and macnmotion: Glad you liked the video & thanks for your comments.

The ciliated protist shown in the video is Stichotricha. It lives in a tube or lorica and contracts into this lorica when disturbed. While only a single individual is shown in this video, Stichotricha are often found in colonies.

Hey Wes, thanks for the info. I am guessing this is why you use a 40mm pancake lens in your setup.

@imkap: From the Zeiss perspective, this is a very good way to connect a camera through the photoport of a Photomicroscope, Universal or other Zeiss scope with the appropriate diameter phototube. Other possibilities are shown in chart in my post. The nice thing about this setup is that you can adjus...

I was able to upgrade the photomicrographic setup of my microscope, based on useful information provided to me by a member of this forum (Wes). I had a part that I knew was used for photomicrography but I didn’t know how. It had some kind of lens in it, and this part is shown in the photo below. I p...

Hello All: Thanks very much for your kind comments on the pictures and video. @Wes: Yes, I did modify my photo setup based on the information you provided in a different post, so thanks again for the info. I lucked out and immediately found the “Aufsetzring” (attachment ring) 47 60 05-1005 on eBay f...