Search found 533 matches

by janvangastel
Fri Nov 27, 2020 3:47 pm
Forum: Pictures and Videos
Topic: Glaucoma scintillans?
Replies: 5
Views: 2213

Re: Glaucoma scintillans?

Thanks again Bruce.
by janvangastel
Fri Nov 27, 2020 12:03 pm
Forum: Pictures and Videos
Topic: Damaged Arcella?
Replies: 1
Views: 1054

Damaged Arcella?

This looks like a damaged tested amoebe, Arcella, but I am not sure.

by janvangastel
Fri Nov 27, 2020 11:56 am
Forum: Pictures and Videos
Topic: Glaucoma scintillans?
Replies: 5
Views: 2213

Re: Glaucoma scintillans?

I found another cilate in water form the same pond, which might be the 'normal' more oval shaped specimen of this genus or species.

by janvangastel
Fri Nov 27, 2020 7:58 am
Forum: Illumination Techniques
Topic: illumination change when making a video
Replies: 7
Views: 3216

Re: illumination change when making a video

That's probably because you have a shiny new one :)
About three years old.
TURN EVERY AUTO MODE OFF
I will try that. But I can also live with pressing the AE-lock button
by janvangastel
Thu Nov 26, 2020 4:46 pm
Forum: Pictures and Videos
Topic: Glaucoma scintillans?
Replies: 5
Views: 2213

Re: Glaucoma scintillans?

Thanks Bruce. I already wondered why the CV is that large,
by janvangastel
Thu Nov 26, 2020 4:43 pm
Forum: Illumination Techniques
Topic: illumination change when making a video
Replies: 7
Views: 3216

Re: illumination change when making a video

I think you need to look for something like ‘Exposure Lock’ or ‘AE Lock’ This worked!. Thanks. I have to keep pressing the button untill I stop recording, but that's no problem. Setting Movie AE Mode to Manual 'M' does it on mine I can't find that setting on my camera. if M mode alone doesn't work ...
by janvangastel
Thu Nov 26, 2020 12:18 pm
Forum: Illumination Techniques
Topic: illumination change when making a video
Replies: 7
Views: 3216

illumination change when making a video

The problem is the following: when I make a video of a dark field scene, the illumination of my camera changes automatically when the center of the camera points to something black or non-black (say 'white'). So, when - in a dark field scene - the illuminated (white) object is centered in the FOV, t...
by janvangastel
Wed Nov 25, 2020 12:14 pm
Forum: Pictures and Videos
Topic: Glaucoma scintillans?
Replies: 5
Views: 2213

Glaucoma scintillans?

I found this almost rond ciliates in my small pond. To me it looks like the above mentioned ciliate, especially because of the shape of its mouth and the way it moves. The largest one in this video is about 44 microns long. Most video's I have seen of this species are somewhat more oval, so maybe I ...
by janvangastel
Wed Nov 25, 2020 8:19 am
Forum: Pictures and Videos
Topic: Frontonia
Replies: 2
Views: 1160

Re: Frontonia

Thank you Bruce. I keep learning from your very informative posts.
by janvangastel
Tue Nov 24, 2020 12:29 pm
Forum: Pictures and Videos
Topic: Frontonia
Replies: 2
Views: 1160

Frontonia

I found this nice ciliate in my small pond. I think it is a Frontonia species because it looks much like Frontonia accuminata I have uploaded some time ago. The black spot misses though. According to Kahl, there is a variant without such a black spot, Fr. accuminata var. angusta. Maybe it is this on...
by janvangastel
Sat Nov 21, 2020 7:34 am
Forum: Identification help
Topic: Colpoda?
Replies: 7
Views: 3158

Re: Colpoda?

I don't think its colpodea. I don't know the size, but to me it looks more like a chilodonellid.
by janvangastel
Tue Nov 17, 2020 7:32 am
Forum: Pictures and Videos
Topic: An Incident
Replies: 3
Views: 1699

Re: An Incident

Very nice video Don.
by janvangastel
Mon Nov 16, 2020 7:22 am
Forum: Pictures and Videos
Topic: Very nice Euplotes
Replies: 7
Views: 3442

Re: Very nice Euplotes

Thanks all for the compliments.
by janvangastel
Mon Nov 16, 2020 7:20 am
Forum: Pictures and Videos
Topic: Amoeba video processing
Replies: 9
Views: 3617

Re: Amoeba video processing

I have also used avidemux but I didn't get good results, because for me it was too difficult to use. I did not understand the terminology. I use 'Shotcut' now. Much more intuitive and lots of 'how to' movies on Youtube. It's also freeware.
by janvangastel
Sun Nov 15, 2020 3:53 pm
Forum: Pictures and Videos
Topic: Very nice Euplotes
Replies: 7
Views: 3442

Re: Very nice Euplotes

I didn't do anything. It just didn't move away.
by janvangastel
Sun Nov 15, 2020 3:52 pm
Forum: Pictures and Videos
Topic: Brown Hydra & unfortunate Ciliate
Replies: 7
Views: 3152

Re: Brown Hydra & unfortunate Ciliate

Beautifull and very interesting video.
by janvangastel
Sun Nov 15, 2020 7:14 am
Forum: Identification help
Topic: Stentor rosea
Replies: 3
Views: 2024

Re: Stentor rosea

Could be Stentor igneus.
by janvangastel
Sat Nov 14, 2020 7:58 am
Forum: Pictures and Videos
Topic: Very nice Euplotes
Replies: 7
Views: 3442

Very nice Euplotes

I found this Euplotes in my small pond. It didn't move around, so I could observe it with my 63 mm objective, giving almost an 800 magnification with my 12.5 mm eyepieces. Amazing how much detail can be observed. I recognize diatoms and green algae. I wonder what the smaller white round spots are. T...
by janvangastel
Wed Nov 11, 2020 3:59 pm
Forum: Identification help
Topic: Strange critter found in peat mining area
Replies: 1
Views: 1381

Re: Strange critter found in peat mining area

It is a rotifer. I don't know which species.
by janvangastel
Tue Nov 10, 2020 6:17 pm
Forum: Identification help
Topic: Small free swimming ciliates
Replies: 2
Views: 1818

Re: Small free swimming ciliates

Sometimes a reflecting 'line' seems visible. They look a littke like Goniomonas, a flagellate.
by janvangastel
Sun Nov 08, 2020 6:07 pm
Forum: Pictures and Videos
Topic: Microbe Aquarium Videos
Replies: 7
Views: 3160

Re: Microbe Aquarium Videos

Very interesting video.
by janvangastel
Sat Nov 07, 2020 7:38 am
Forum: Illumination Techniques
Topic: Oblique filter suggestions
Replies: 12
Views: 5781

Re: Oblique filter suggestions

This is clearly oblique illumination. It works best, in my experience, with medium magnifications. I use my 25 and 40 m objective most of the time with this kind of illumination. With my orthoplan, the 10 mm objective does not work for oblique illumination and my 63 mm does work, but is somewhat mor...
by janvangastel
Sun Nov 01, 2020 6:09 pm
Forum: Pictures and Videos
Topic: Tiny Cactus Flower
Replies: 4
Views: 1923

Re: Tiny Cactus Flower

Very nice video, but after a minute or so I do not know what I am looking at any more. I lose any reference.
by janvangastel
Sun Nov 01, 2020 5:25 pm
Forum: Pictures and Videos
Topic: unknown ciliate
Replies: 6
Views: 2495

Re: unknown ciliate

So: Synhymeniida.
Thanks for your research Bruce. I will update the names in the video's.

Thanks Rapidray.
by janvangastel
Sat Oct 31, 2020 5:48 pm
Forum: Pictures and Videos
Topic: unknown ciliate
Replies: 6
Views: 2495

Re: unknown ciliate

Thanks Bruce. I once posted video of another ciliate on Youtube, which I thought was Chilodontopsis depressa. I don't think I posted it here on this forum. It looks different from this one so I can easily have been wrong. It is here:

by janvangastel
Sat Oct 31, 2020 10:20 am
Forum: Pictures and Videos
Topic: unknown ciliate
Replies: 6
Views: 2495

unknown ciliate

I found this very flexible ciliate in my small pond. Im sure it's not a Hypotrichia, but that's all I can say about its ID. I see a basket in the upper half of the cell and close to that, I think, I see a macronucleus. CV's close to the rear end. Sometimes it looks oval, sometimes roundish and somti...
by janvangastel
Sat Oct 31, 2020 7:55 am
Forum: Pictures and Videos
Topic: Displaying my images on YouTube
Replies: 11
Views: 4963

Re: Displaying my images on YouTube

Most of the time I turn of the music, so no problem with 'no sound'.
by janvangastel
Mon Oct 26, 2020 1:51 pm
Forum: Pictures and Videos
Topic: Urostyla?
Replies: 4
Views: 1758

Re: Urostyla?

Thank you Bruce. I already suspected that threre wouldn't be not enough information.
by janvangastel
Sun Oct 25, 2020 4:55 pm
Forum: Pictures and Videos
Topic: Urostyla?
Replies: 4
Views: 1758

Urostyla?

I found this nice, colorfull hypotrich in my small pond. It is about 145 microns long, very flexable and if I counted well, it has four or five rows of cilii. I think I saw the CV not far from the center of the body (lengthwise) and two macronuclei nodes.

by janvangastel
Sun Oct 25, 2020 8:51 am
Forum: Pictures and Videos
Topic: Oligochaeta - Dero digitata worms
Replies: 6
Views: 2175

Re: Oligochaeta - Dero digitata worms

Nice worms and nice video. I didn't know darkfield was even possible with a stereo microscope.