Search found 182 matches
- Tue Oct 25, 2022 6:21 pm
- Forum: Specimens, samples and slides
- Topic: swimming spores
- Replies: 11
- Views: 2826
swimming spores
Fern spores are much like pollen. They vary in size, but typically they're about 50 µm long. Often I need to take a quick look at them to see whether they're spiny, wartly, smooth or whatever. I stress the word 'quick' in the previous sentence because at such moments I am not busy with microscopy bu...
- Mon Oct 24, 2022 1:00 pm
- Forum: Home-made microscope adaptations
- Topic: stereomicroscope illumination for less than $10
- Replies: 5
- Views: 2196
Re: stereomicroscope illumination for less than $10
Nice job! The ones I got were not as bright as I would like, but they work fairly well. Here's a thread where I designed one for use with the Cycloptic. There are some changes I would make were I to build another, but last I spoke with it's caretaker it was still working fine for her. I was fairly ...
- Sun Oct 23, 2022 2:46 pm
- Forum: Resources (online, books etc.)
- Topic: Nikon Labophot & Optiphot manuals etc.
- Replies: 3
- Views: 2420
Re: Nikon Labophot & Optiphot manuals etc.
I do have a few more of them, such as the repair manual. If there's any permanent site to store them, I'd be happy to pass 'm on.
- Sun Oct 23, 2022 11:06 am
- Forum: Home-made microscope adaptations
- Topic: stereomicroscope illumination for less than $10
- Replies: 5
- Views: 2196
Re: stereomicroscope illumination for less than $10
The 3d-printed sleeve around the objective physically separates the LED-ring entirely from the objective. If the LEDs ever would heat up, the PLA would melt first and the whole contraption fall down.
- Sat Oct 22, 2022 7:54 pm
- Forum: Home-made microscope adaptations
- Topic: stereomicroscope illumination for less than $10
- Replies: 5
- Views: 2196
stereomicroscope illumination for less than $10
Either my eyes get worse or the amount of light of my now 'bout 15 years old led ringlight is decreasing (possibly both). But since some time I 've been growing increasingly discontent with the illumination levels beneath my stereo microscope. Another source of annoyment was that the brim of the rin...
- Thu Oct 20, 2022 7:09 pm
- Forum: Home-made microscope adaptations
- Topic: DIY Dapi
- Replies: 5
- Views: 2922
- Thu Oct 20, 2022 2:15 pm
- Forum: Home-made microscope adaptations
- Topic: DIY Dapi
- Replies: 5
- Views: 2922
Re: DIY Dapi
I had a filterset by Optolong and I have tried to make filtercubes for use on the Optiphot. The greates issue I ran into was, that the modern filter cubes are larger than the ones the old Nikons use, and so are the modern filters. It seemed that I could just about fit the larger filters on a custom ...
- Wed Oct 19, 2022 7:47 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: no longer available: Olympus condenser Aplanat Achromat 1.4
- Replies: 0
- Views: 524
no longer available: Olympus condenser Aplanat Achromat 1.4
Olympus condenser Aplanat Achromat 1.4 , in excellent state, if I am any judge. The black cardboard box with snap click closure it comes in is either its original , or one that fits it very well (It's marked BH MJLCD on the bottom). I have tried this condenser on my Nikon. Optically it's a great im...
- Tue Aug 02, 2022 2:45 pm
- Forum: Specimens, samples and slides
- Topic: practical help with ringing please
- Replies: 0
- Views: 985
practical help with ringing please
I am trying to make semi-permanent preps by melting bees-wax rings. So far without much success. I could do with some practical advice. The main problem seems to bee that when I melt the wax, the cover slip gets sucked to the slide, either squeezing out the mountant (glycerin) or equally spreading t...
- Tue Nov 02, 2021 6:33 pm
- Forum: Pictures and Videos
- Topic: germinating fern spores
- Replies: 6
- Views: 2506
Re: germinating fern spores
Really great, without any doubt! Thanks for sharing... Pls. be welcomed to provide more ;-) They definitely grow much slower in the petri dish than on earthy media where they already developed small sporophytes. I doesn't help, I suppose, that there are hardly any nutrients available. For a long ti...
- Tue Oct 12, 2021 4:55 pm
- Forum: Camera systems and imaging
- Topic: Time to ask for more help.
- Replies: 10
- Views: 3387
- Sat Oct 09, 2021 7:27 pm
- Forum: Miscellaneous
- Topic: Open source microscope
- Replies: 6
- Views: 2514
Re: Open source microscope
Perhaps a common lab microscope like a Biolam would be an even better basis for such a project than the plastic stand. I did consider the open microscope (must have been an earlier version) when I started out becoming serious. Even though I had access to a 3d printing facility, I decided against it...
- Sat Sep 11, 2021 3:37 pm
- Forum: Microscopy accessories
- Topic: hand microtome
- Replies: 1
- Views: 1438
Re: hand microtome - plans
The technical documentaion is available from https://www.thingiverse.com/thing:4962720.
- Fri Sep 10, 2021 5:50 pm
- Forum: Microscopy accessories
- Topic: hand microtome
- Replies: 1
- Views: 1438
hand microtome
For a few months now I have been developing a hand microtome based upon the OPN microtome . I couldn't make exactly the original design since an error in my 3d-printing workflow prohibited me slicing my models. However, most models can be designed such that they can be made by a laser cutter, often ...
- Sat Aug 21, 2021 8:19 pm
- Forum: Home-made microscope adaptations
- Topic: Rotating stage for Laborlux S
- Replies: 4
- Views: 4656
Re: Rotating stage for Laborlux S
Can you keep the focus centered?
- Sat Aug 21, 2021 8:10 pm
- Forum: Home-made microscope adaptations
- Topic: Best way to darken a microscope barrel?
- Replies: 9
- Views: 7143
Re: Best way to darken a microscope barrel?
AN easy and reversible way is by applying sooth to it. If it doesn't work, just wipe it away. If it does, make sure never to touch it.
- Fri Aug 13, 2021 8:01 pm
- Forum: Pictures and Videos
- Topic: Tylenchida
- Replies: 9
- Views: 3284
Re: Tylenchida
The styletto is beautifully visible in the last picture. Why do you view them alive?
- Fri Aug 06, 2021 11:44 am
- Forum: Identification help
- Topic: What is this ?
- Replies: 5
- Views: 2875
Re: What is this ?
It much looks like tracheids: vessel like elements on plants.
Hmm.. do we know the patient is human..?One would think that if they were legitimate medical practitioners they would either know or just send it to a Lab ...
- Thu Aug 05, 2021 8:00 pm
- Forum: Identification help
- Topic: I have no idea
- Replies: 6
- Views: 3299
Re: I have no idea
Could it be a grain of pollen?
- Sat Jul 31, 2021 8:10 pm
- Forum: Miscellaneous
- Topic: Wooden box for Labophot (UK)
- Replies: 9
- Views: 4596
Re: Wooden box for Labophot (UK)
If it's once in-once out, why not hammer a crate yourself?
- Fri Jul 30, 2021 7:54 pm
- Forum: Pictures and Videos
- Topic: Ligustrum spp. TS safranin-o stain
- Replies: 10
- Views: 3650
Re: Ligustrum spp. TS safranin-o stain
A very interesting discussion, this is. Thanks. I use methylene blue in the 1% aq solution, but I find it much easier to handle when diluted much more. To a lesser extent the same applies to safranine. 1-3 Drops in a 3cm pertri dish with water gives all the time I need to judge the staining intensit...
- Thu Jul 29, 2021 9:08 am
- Forum: Pictures and Videos
- Topic: germinating fern spores
- Replies: 6
- Views: 2506
- Wed Jul 28, 2021 8:19 pm
- Forum: Pictures and Videos
- Topic: germinating fern spores
- Replies: 6
- Views: 2506
germinating fern spores
The slide already bore an overdose of dry spores used for previous inspection. Then I kept it for about a week in a petri dish with a layer of water.
- Sat Jul 17, 2021 7:54 pm
- Forum: Microscopes and optics
- Topic: Simple method to test objective using laser pointer
- Replies: 5
- Views: 1882
Re: Simple method to test objective using laser pointer
Thanks for the link. I greatly enjoy browsing past issues of this journal that I didn't know before now.
- Thu Jul 15, 2021 12:00 pm
- Forum: Specimens, samples and slides
- Topic: Have you tried plant maceration (at home)?
- Replies: 1
- Views: 2554
Re: Have you tried plant maceration (at home)?
Exactly my question... I found this one with the forum's search function. I have this protocol Maceration by Ammonium Oxalate This is a useful method for non-woordy materials. thin slivers of material, cut longitudinally, are placed in alcoholic HCl (1 part HCl:3 parts commercial alcohol) for 24h or...
- Thu Jul 01, 2021 8:45 pm
- Forum: Microscopes and optics
- Topic: are diaphot & optiphot revolvers interchangeable?
- Replies: 0
- Views: 709
are diaphot & optiphot revolvers interchangeable?
I can buy a Diaphot 300 for parts, and one of the parts I am interested in is the 6-position revolver. But could I use that on my optiphot?
- Sat Jun 26, 2021 12:09 pm
- Forum: Important announcements
- Topic: New Microscopy Wiki!
- Replies: 7
- Views: 11417
Re: New Microscopy Wiki!
There are thousands of fake users already. I suppose you'll have to validate new users manually...
- Fri Jun 18, 2021 9:42 pm
- Forum: Illumination Techniques
- Topic: Phone illumination - poor man confocal
- Replies: 6
- Views: 4439
Re: Phone illumination - poor man confocal
It is possible to use the lcd screen without the phone attached, as 'filter' over the microscope's own light source. I do have a very interesting publication on that on my other computer. i will add the link tomorrow. That project has been on my wish-to-do-list for over two years now. I got second t...
- Sat Jun 12, 2021 10:16 pm
- Forum: Illumination Techniques
- Topic: Overhead lighting for compound scope (T720Q)
- Replies: 13
- Views: 4416
Re: Overhead lighting for compound scope (T720Q)
Wouldn't you rather mix in some transmitted light so the background turns white, instead of inside-of-pp-ball-coloured?
- Thu Jun 10, 2021 1:55 pm
- Forum: Beginner's corner
- Topic: Adapting a computer monitor arm for B&L SZ4 boom stand??
- Replies: 31
- Views: 10795
Re: Adapting a computer monitor arm for B&L SZ4 boom stand??
Dentists use wonderful swing arms for their lamps and instrument consoles. Often they are ceiling mounted.