Search found 60 matches
- Tue Apr 23, 2024 4:29 pm
- Forum: Identification help
- Topic: Euglena? shapeshifting
- Replies: 5
- Views: 226
Re: Euglena? shapeshifting
After looking at Distigma videos, I think that’s the one. Thanks again Bruce.
- Mon Apr 22, 2024 2:23 pm
- Forum: Identification help
- Topic: Euglena? shapeshifting
- Replies: 5
- Views: 226
Re: Euglena? shapeshifting
Thanks Bruce. I'm guessing the Metaboly movement serves to get nutrients and other important molecules to all parts of the organism. I believe I did observe two flagella though they aren't very apparent in the video.
- Sat Apr 20, 2024 9:33 pm
- Forum: Identification help
- Topic: Euglena? shapeshifting
- Replies: 5
- Views: 226
- Wed Oct 25, 2023 12:50 pm
- Forum: Pictures and Videos
- Topic: Another POV
- Replies: 3
- Views: 580
Re: Another POV
DF is possible, but not without major reworking the illumination system to get a smaller cone. The rig has a few limitations regarding special illumination techniques. DIC is right out.
- Wed Oct 25, 2023 12:10 am
- Forum: Pictures and Videos
- Topic: Nebulosa bug under microscope and macro bench
- Replies: 8
- Views: 1146
Re: Nebulosa bug under microscope and macro bench
Regarding diffuser around specimen, this is what works for me, though some specimens do better with harsher shadows: IMG_2334.jpeg Just cut a hole in the bottom of the styrofoam cup that is slightly smaller than the barrel of the objective so that the cup slides on with a slight grip. Cheers, Bob
- Tue Oct 24, 2023 9:31 pm
- Forum: Pictures and Videos
- Topic: Another POV
- Replies: 3
- Views: 580
Another POV
Just for grins, I thought I might try a pond water video from a different angle of view.
First, just to get you oriented:
And here is the video:
https://drive.google.com/file/d/1CyCARY ... sp=sharing
First, just to get you oriented:
And here is the video:
https://drive.google.com/file/d/1CyCARY ... sp=sharing
- Mon Oct 23, 2023 6:56 pm
- Forum: Microscopes and optics
- Topic: 6 cent coverslips vs 24 cent coverslips
- Replies: 3
- Views: 1428
6 cent coverslips vs 24 cent coverslips
I'm curious if anybody can comment on the photo-optical benefits of high end coverslips vs lower cost coverslips. I'm looking to order the more expensive #1.5 Schot coverslips listed as .16 to .19 mm thickness, but not sure if my camera will see an improvement. I understand that the DPlan objectives...
- Wed Sep 20, 2023 8:44 pm
- Forum: Identification help
- Topic: The Heliozoan Connection
- Replies: 2
- Views: 891
Re: The Heliozoan Connection
Thanks once again, Bruce! I agree that Mr. Kreutz’s image is not only cool, but elegant as well.
- Wed Sep 20, 2023 7:41 pm
- Forum: Identification help
- Topic: The Heliozoan Connection
- Replies: 2
- Views: 891
The Heliozoan Connection
These two appear to be connected by a long stalk. I say "appear" because I'm not sure if the stalk is a specialized axopodium or just some flotsam that both are attached to. Any ideas what's going on here?
https://drive.google.com/file/d/19DGhfT ... sp=sharing
https://drive.google.com/file/d/19DGhfT ... sp=sharing
- Mon Sep 18, 2023 1:47 pm
- Forum: Identification help
- Topic: New to me critter
- Replies: 6
- Views: 1431
Re: New to me critter
It actually did come from the pond.
- Sun Sep 17, 2023 6:05 pm
- Forum: Identification help
- Topic: New to me critter
- Replies: 6
- Views: 1431
New to me critter
The scale in the lower right is incorrect - should be 100 micrometers instead of 200. The video is slowed by 2x.
Thanks.
https://drive.google.com/file/d/1M-CBZ0 ... sp=sharing
Thanks.
https://drive.google.com/file/d/1M-CBZ0 ... sp=sharing
- Sun Sep 03, 2023 11:32 pm
- Forum: Pictures and Videos
- Topic: Spider Wasp Monochrome
- Replies: 1
- Views: 409
Spider Wasp Monochrome
This is a stack of 226 at 24μ. 4x objective on the D500.
https://drive.google.com/file/d/1K5tfQ1 ... sp=sharing
https://drive.google.com/file/d/1K5tfQ1 ... sp=sharing
- Mon Aug 14, 2023 9:17 pm
- Forum: My microscope
- Topic: Scope Central
- Replies: 4
- Views: 1710
Re: Scope Central
I love my BH2! No neglect from me - it gets center position, it has my best camera, all 5 objective positions filled, it was recently outfitted with polarizing and oblique capability. If you’re suggesting Phase contrast/DIC, or reflected lighting, that might come later. BTW, I have a fondness for Ol...
- Sat Aug 12, 2023 2:14 am
- Forum: My microscope
- Topic: Scope Central
- Replies: 4
- Views: 1710
Re: Scope Central
Thanks. Retirement is great! This location also doubles as an RDR2 portal. (No, I haven’t seen Gavin).
- Wed Aug 09, 2023 3:10 am
- Forum: My microscope
- Topic: Scope Central
- Replies: 4
- Views: 1710
Scope Central
New location for all my gear. Left to right: Motic SMZ-168 with Nikon 1-V1, Olympus BHT BHTU with RisingCam 20mb USB3 camera, current iteration of my extreme macro rig.
https://drive.google.com/file/d/1oAFGp_ ... p=drivesdk
Cheers.
Bob
https://drive.google.com/file/d/1oAFGp_ ... p=drivesdk
Cheers.
Bob
- Wed Aug 09, 2023 2:13 am
- Forum: Identification help
- Topic: Spirochaete?
- Replies: 1
- Views: 1416
Spirochaete?
This is an enlarged version of a 400x clip - probably around 1600x, Illumination via a newly acquired oblique/polarizing kit for the Olympus BH2. I find the combo of polarized and oblique light gives a much more interesting 3D-like view than brightfield or 360 degree darkfield. This might be my new ...
- Sat Jun 03, 2023 12:37 pm
- Forum: Identification help
- Topic: New to me segmented worm
- Replies: 2
- Views: 1159
Re: New to me segmented worm
Thanks, Actinophrys. I suspected a larva as well, but couldn’t find an image online of one similar to it. The periodic thrashing reminded me of mosquito wrigglers. Also the size - about 3mm I think.
- Sat Jun 03, 2023 1:43 am
- Forum: Identification help
- Topic: New to me segmented worm
- Replies: 2
- Views: 1159
New to me segmented worm
This 40X video is slowed down to 1/4th speed in order to get a better glimpse of whatever it is. In case you missed it ,the tail end is spiked with 5 or 6 bristles. Sorry for the poor quality. First time I’ve seen straight, rigid segments like this. Thanks for looking. https://drive.google.com/file/...
- Tue May 30, 2023 6:21 pm
- Forum: Identification help
- Topic: Litonotus?
- Replies: 4
- Views: 1460
Re: Litonotus?
Thanks Josmann and Bruce! I had glimpsed similar critters a few times, but was never able to get a good enough look to warrant further study. I don’t think they like to be out in the open much.
Cheers.
Bob
Cheers.
Bob
- Sun May 28, 2023 7:58 pm
- Forum: Identification help
- Topic: Litonotus?
- Replies: 4
- Views: 1460
Litonotus?
From a local Northern VA pond. This is 40x. Watched for about 20 minutes, but didn’t observe any eating behavior. In this photo, the “neck” is about as long as it got. Most of the time it was about a third this length. The two large granules or nuclei in the main part of the body are probably clues ...
- Tue Feb 07, 2023 2:02 am
- Forum: Identification help
- Topic: ID these two foraging critters
- Replies: 7
- Views: 1647
Re: ID these two foraging critters
Bruce, Re: ventral cilia distribution, are you referring to the amphisiellid median cirral row and adoral zone of membranelle cilia only, or other cilia groupings along the ventral side? If I run across these guys again, I’ll pay more attention to that area, though I don’t think my setup will be up ...
- Thu Feb 02, 2023 1:46 am
- Forum: Identification help
- Topic: ID these two foraging critters
- Replies: 7
- Views: 1647
Re: ID these two foraging critters
Here is a bright field image at 100x and cropped to about 200x: 8EAA9B10-5B67-4313-96F7-1C02E7ECE57B.jpeg Original higher resolution image: https://drive.google.com/file/d/1H8ILMUKKGMbVFtcy5lsy3gvJJKQ91lLI/view?usp=sharing Here is the video: https://drive.google.com/file/d/1xAi6rriFvHCjrqDwANa2a0WP0...
- Wed Feb 01, 2023 10:46 pm
- Forum: Identification help
- Topic: ID these two foraging critters
- Replies: 7
- Views: 1647
Re: ID these two foraging critters
I am processing a bright field video and will post later. This superb Charles Krebs image is the best match I can find. Certainly Hypotrich. Thanks again, Bruce.
- Wed Feb 01, 2023 9:03 pm
- Forum: Identification help
- Topic: ID these two foraging critters
- Replies: 7
- Views: 1647
Re: ID these two foraging critters
Alas, no bright field on this one, Bruce. I only noticed longitudinal body striations and short sub anterior cilia scooping up food. Moved like a flatworm. They never rested, so it was difficult to get a sharp photograph.
- Wed Feb 01, 2023 8:37 pm
- Forum: Identification help
- Topic: ID these two foraging critters
- Replies: 7
- Views: 1647
ID these two foraging critters
Platyhelminthes?
These two guys are about 150μ long. Whiskers at the mouth.
Thanks in advance.
Bob
These two guys are about 150μ long. Whiskers at the mouth.
Thanks in advance.
Bob
- Sat Oct 22, 2022 2:44 pm
- Forum: Pictures and Videos
- Topic: Heliozoan bubble gum
- Replies: 5
- Views: 773
Re: Heliozoan bubble gum
Thank you, Bruce for the clarification. I really appreciate the taxonomic info. What caught my attention here was the regularity of the inflating/deflating cycle with no apparent food target near by.
- Sat Oct 22, 2022 4:28 am
- Forum: Pictures and Videos
- Topic: Heliozoan bubble gum
- Replies: 5
- Views: 773
Re: Heliozoan bubble gum
Thanks. Yes, I watched for about 10 minutes and the inflating and rapid deflating was very regular the whole time.
- Fri Oct 21, 2022 9:06 pm
- Forum: Pictures and Videos
- Topic: Heliozoan bubble gum
- Replies: 5
- Views: 773
Heliozoan bubble gum
This bubble inflating and deflating went on for quite a while. Food vacuole? Or some other process? Cropped from a 300x recording on the 20Mp Rising Cam. I’m experimenting with Topaz Video AI to see if it can improve on the streams I get from this camera and its bundled capture software. Using the T...
- Thu Sep 22, 2022 5:42 pm
- Forum: Identification help
- Topic: ID help please for green protist
- Replies: 5
- Views: 1136
Re: ID help please for green protist
Based only on species images on the internet, E. gracilis is the closest match I can find for now.
- Thu Sep 22, 2022 5:29 pm
- Forum: Identification help
- Topic: ID help please for green protist
- Replies: 5
- Views: 1136
Re: ID help please for green protist
Ah yes, thanks for the correction on paramylum bar.