Search found 103 matches
- Mon Apr 15, 2024 11:46 pm
- Forum: Home-made microscope adaptations
- Topic: Searching Cree LED for tiny dimmers
- Replies: 23
- Views: 20940
Re: Searching Cree LED for tiny dimmers
Looks like they found a ref which already has an adapted beam angle... So far, I didn't find a ref of such a LED. LED's are quite complex / can of worms This page and the next one on has some info: https://luminusdevices.zendesk.com/hc/en-us/articles/15571205799181-What-LED-Optical-Characteristics-...
- Mon Apr 15, 2024 11:29 pm
- Forum: Camera systems and imaging
- Topic: What accessory do I need to par focal microscope camera in trinocular tube of stereo microscope ?
- Replies: 13
- Views: 1083
Re: What accessory do I need to par focal microscope camera in trinocular tube of stereo microscope ?
@jackieone additionally... Trinocular port (C-mount) on stereo zoom microscope: Add a picture of your trino head, and more details about its model. Will be helpfull. You say your trino has a c-mount port? And according to your initial post, you intend to order an optic for a 38mm photo port, which w...
- Mon Apr 15, 2024 10:40 pm
- Forum: Camera systems and imaging
- Topic: What accessory do I need to par focal microscope camera in trinocular tube of stereo microscope ?
- Replies: 13
- Views: 1083
Re: What accessory do I need to par focal microscope camera in trinocular tube of stereo microscope ?
@jackieone I told you to first plug your camera in place of an eyepiece, it is foreseen for this. And see the images, with your 0.5x adapter. That way: https://m.media-amazon.com/images/I/71ZzqtYJFPL._AC_UF350,350_QL80_.jpg Trinocular port (C-mount) on stereo zoom microscope: We still don't know wha...
- Sun Apr 14, 2024 5:00 pm
- Forum: Home-made microscope adaptations
- Topic: Searching Cree LED for tiny dimmers
- Replies: 23
- Views: 20940
Re: Searching Cree LED for tiny dimmers
P.S. __ I had never seen that Motic LED module before, but I think it features in the second part of this video https://youtu.be/46PeQ-sMA4M?feature=shared Correct, that LED module is designed for BA310 or BA410, comes in a aluminum housing (heatsink), it plugs in the bulb socket, and as shown in t...
- Sun Apr 14, 2024 2:01 pm
- Forum: Home-made microscope adaptations
- Topic: Searching Cree LED for tiny dimmers
- Replies: 23
- Views: 20940
Re: Searching Cree LED for tiny dimmers
I now found that Osram doc, about LED illumination, including for cameras. "Compared to traditional fluorescent light sources, LEDs instantaneously translate their operating current into light , without much smoothing effects . Simple, cost effective circuit designs can lead to a lower quality of li...
- Sun Apr 14, 2024 1:25 pm
- Forum: Home-made microscope adaptations
- Topic: Searching Cree LED for tiny dimmers
- Replies: 23
- Views: 20940
Re: Searching Cree LED for tiny dimmers
[The convex lens for these expensive microscopes seems to include a focal length enough to concentrate the light into the condenser, although I wonder if there are no more special efforts. It seems to be quite standard lens, easy to find. This is for some Zeiss microscope: https://i.ebayimg.com/ima...
- Sun Apr 14, 2024 12:58 pm
- Forum: Home-made microscope adaptations
- Topic: Searching Cree LED for tiny dimmers
- Replies: 23
- Views: 20940
Re: Searching Cree LED for tiny dimmers
I'm very interested in these tiny dimmers without flickering to try a LED replacement. The most common way to dim a LED/DC motor/bulb is PWM. Pulse width modulation, a square electric signal with a variable duty cycle. Illumination depending of the duty cycle and the resulting analog level. For our...
- Sun Apr 14, 2024 12:22 pm
- Forum: Camera systems and imaging
- Topic: What accessory do I need to par focal microscope camera in trinocular tube of stereo microscope ?
- Replies: 13
- Views: 1083
Re: What accessory do I need to par focal microscope camera in trinocular tube of stereo microscope ?
In order to par focal a microscope camera, used with the trinocular port of a stereo zoom microscope The camera adapters you got are foreseen to fit into an eyepiece mount. Remove one eyepiece, plug your camera into, and see what you get out from your 0.5X adapter. And from the eyepiece adapter wit...
- Sun Apr 07, 2024 11:11 pm
- Forum: Sandbox
- Topic: Test w/Flickr
- Replies: 15
- Views: 1843
- Sun Apr 07, 2024 10:36 pm
- Forum: Sandbox
- Topic: Test w/Flickr
- Replies: 15
- Views: 1843
Re: Test w/Flickr
there'll be more.... I found the URL by other ways. In what you posted, I see this, being the URL to be added here: footer="true" href="https://www.flickr.com/photos/200481794@N08" title="">< img src=" https://live.staticflickr.com/65535/536 ... 9142_z.jpg [/b]" width="800" height="600" The URL: ht...
- Sun Apr 07, 2024 9:32 pm
- Forum: Sandbox
- Topic: Test w/Flickr
- Replies: 15
- Views: 1843
Re: Test w/Flickr
It doesn't seem to be supported by Flickr (and others) either. Find the URL of the image, and use it here...
- Sun Apr 07, 2024 9:03 pm
- Forum: Sandbox
- Topic: Test w/Flickr
- Replies: 15
- Views: 1843
Re: Test w/Flickr
Not sure this is supported here....
- Sun Apr 07, 2024 8:37 pm
- Forum: Sandbox
- Topic: Test w/Flickr
- Replies: 15
- Views: 1843
Re: Test w/Flickr
Try again
- Sun Apr 07, 2024 8:35 pm
- Forum: Microscopes and optics
- Topic: Olympus CK2 won't power on
- Replies: 2
- Views: 1307
Re: Olympus CK2 won't power on
Additionally, please, define, what this "good bulb" is. I've found not much about CK2 models. They seem to work with 6V 20W bulbs. What is adequate for yours should be written on a sticker, at the scope rear panel. On the rear panel, you shall also see an indication about the fuse rating or this "gl...
- Sun Apr 07, 2024 7:09 pm
- Forum: Microscopes and optics
- Topic: Olympus CK2 won't power on
- Replies: 2
- Views: 1307
Re: Olympus CK2 won't power on
Images are not so good, don't allow to see things closer... That wire was probably just a little bit burned by the soldering process. Shouldn't be an issue. The little glass tube is a fuse. Do you see a small wire inside of it? If that tube is empty, it could have blown. You will then have to replac...
- Sat Apr 06, 2024 9:04 pm
- Forum: Pictures and Videos
- Topic: What Does It Mean To Say One Ciliate Eats Another
- Replies: 21
- Views: 2331
Re: What Does It Mean To Say One Ciliate Eats Another
A picture of my 5L "jar" or indoor pond. I have to clean a bit things in there. But who cares? That "grass" shall need CO2, a costly setup. I have none. It has just grown around. The minimum probably being some acceptable illumination for plants to grow. https://pbs.twimg.com/media/GKgprqPWYAA1LvB?f...
- Sat Apr 06, 2024 8:39 pm
- Forum: Pictures and Videos
- Topic: What Does It Mean To Say One Ciliate Eats Another
- Replies: 21
- Views: 2331
Re: What Does It Mean To Say One Ciliate Eats Another
My setup is "low tech", see on Youtube, how "low tech aquariums" or "Walstad style aquarium" work. Filter less aquariums, filters being the costly parts of nowadays sold aquariums. No fertilizers either. Just let things go. Instead of filtering, fit some plants and algaes in the jar, with some groun...
- Fri Apr 05, 2024 9:16 pm
- Forum: Pictures and Videos
- Topic: What Does It Mean To Say One Ciliate Eats Another
- Replies: 21
- Views: 2331
Re: What Does It Mean To Say One Ciliate Eats Another
Hum... > please do not hold to idea that all life ( protists, meiofauna, and our scale: megafauna) do not go on all seasons.. > I will say that in some seasons I get a lot of amebae and larger micro-animals I do not know exactly what is going on in my jar. But it is factual, as I have day illuminati...
- Fri Apr 05, 2024 12:31 am
- Forum: Pictures and Videos
- Topic: What Does It Mean To Say One Ciliate Eats Another
- Replies: 21
- Views: 2331
Re: What Does It Mean To Say One Ciliate Eats Another
Hum... my "jar" is a huge 5L jar with illumination, a lot of plants inside, and a little 10W heater for constant 25°C
Maybe not the best as seasons are gone in there
Maybe not the best as seasons are gone in there
- Wed Apr 03, 2024 10:38 pm
- Forum: Pictures and Videos
- Topic: What Does It Mean To Say One Ciliate Eats Another
- Replies: 21
- Views: 2331
Re: What Does It Mean To Say One Ciliate Eats Another
I am working almost entirely with protists in a jar of stagnant water--not from a natural source. In a jar, you may be limited by what survived and growed in there. I once had a lot of hydras in my jar, but they seem all gone since months... You may perhaps buy some cheap plants or moss in any aqua...
- Wed Apr 03, 2024 4:50 pm
- Forum: Pictures and Videos
- Topic: What Does It Mean To Say One Ciliate Eats Another
- Replies: 21
- Views: 2331
Re: What Does It Mean To Say One Ciliate Eats Another
Hi, Only bigger organisms have the ability to hunt? But some smaller seem to move a lot around on a slide... I've seen several but rare videos on YT, of amoebas, hydras or other small organisms eating others, or of small protozoan sucking out plant cells contents. One of those videos showing an hydr...
- Wed Apr 03, 2024 4:22 pm
- Forum: Microscopes and optics
- Topic: Olympus X-Line Objectives
- Replies: 6
- Views: 1875
Re: Olympus X-Line Objectives
I received this promotional link from Evident, and am posting it here for general interest/discussion https://view-su3.highspot.com/viewer/66045456bc8bc3417086b790?iid=635b9ea473b518b8afacceb5 That shall interest apochronaut. At around 3'40", the engineer seems to check and wipe dust away by a simp...
- Tue Apr 02, 2024 12:22 pm
- Forum: Pictures and Videos
- Topic: Everything looks better in slow motion
- Replies: 12
- Views: 1832
Re: Everything looks better in slow motion
On the subject of cilia, I was lucky enough to capture these cilia, top left of the ciliate, in their "return" phase. https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihcSpLdgUofb5woaytyPpRsFE-qNG8nOBYDoGUdJvisz7U0niqR11Dmyx8CkaEY9h_j-f8sEa6TrPknfuEnmlakoLBVmxt2AL9kCYn7SHKaFZRNjnfE_L65-pc...
- Sun Mar 31, 2024 1:15 pm
- Forum: Pictures and Videos
- Topic: Everything looks better in slow motion
- Replies: 12
- Views: 1832
Re: Everything looks better in slow motion
You make a very good point … but perhaps that ‘short’ description reveals that most previous observers have seen less detail than you have. The motion of individual cilia is, I believe, rather like a whip-crack and therefore exceedingly difficult to image. … I think you are already doing better tha...
- Sat Mar 30, 2024 9:54 pm
- Forum: Digital processing
- Topic: Chromatic aberrations filtering
- Replies: 52
- Views: 5330
- Sat Mar 30, 2024 7:51 pm
- Forum: Digital processing
- Topic: Chromatic aberrations filtering
- Replies: 52
- Views: 5330
Re: Chromatic aberrations filtering
I tested also different methods to filter or attenuate colors, with yellow and amber filters, wasn't satisfying or magic either. Try a "Kodak F1 Pale yellow" filter; it seems to chop off the 'stand alone' blue band pretty cleanly. I cant find a crossover (the Lee pale-yellow gelatine is not the sam...
- Fri Mar 29, 2024 12:00 pm
- Forum: Pictures and Videos
- Topic: Everything looks better in slow motion
- Replies: 12
- Views: 1832
Re: Everything looks better in slow motion
Hi, I noticed no more motion can be interesting also. Hawing looked at a live one, I was surprised by how it looked like after my slide ended drying up, by the length of cilias. I may be wrong, other are welcome to comment, but usually, they seem to be described as being short. Here you see the diff...
- Sun Mar 24, 2024 1:27 pm
- Forum: Microscopy accessories
- Topic: Anti-Static for lenses.
- Replies: 26
- Views: 3355
Re: Anti-Static for lenses.
I finally found some options. Keywords for search engines being "ESD ionizer".
Some being very cheap, but I suspect those could be common ozone / negative ions generators only.
That is a promotional video, shows the effect, shows also how to work with an ESD desk pad + wrist band:
Some being very cheap, but I suspect those could be common ozone / negative ions generators only.
That is a promotional video, shows the effect, shows also how to work with an ESD desk pad + wrist band:
- Fri Mar 22, 2024 9:12 pm
- Forum: Digital processing
- Topic: Focus stacking from a video
- Replies: 33
- Views: 21311
Re: Focus stacking from a video
above all, don't hesitate to post photos of the LEDs once installed. I am very impatient to see your lighting system. . . Will take some time. I got big LED heat sinks. Shall allow me to adapt them to common photo 1/4 mounts. Plus LEDs and 5°beam optics that nicely pop and fit firmly on the LEDs. B...
- Fri Mar 22, 2024 8:41 pm
- Forum: Microscopy accessories
- Topic: Anti-Static for lenses.
- Replies: 26
- Views: 3355
Re: Anti-Static for lenses.
apochronaut if you believe the gun you found is an option, go for it. Add a desk pad plus a wrist band, get some ESD bags for tools and parts. An optimal pulsed AC corona generator would be easy to build. Looking for a adequate pulse transformer, I quickly found a "High Voltage Stun Gun Transformer ...