Search found 179 matches

by iconoclastica
Sun Oct 23, 2022 11:06 am
Forum: Home-made microscope adaptations
Topic: stereomicroscope illumination for less than $10
Replies: 5
Views: 2116

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.
by iconoclastica
Sat Oct 22, 2022 7:54 pm
Forum: Home-made microscope adaptations
Topic: stereomicroscope illumination for less than $10
Replies: 5
Views: 2116

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...
by iconoclastica
Thu Oct 20, 2022 7:09 pm
Forum: Home-made microscope adaptations
Topic: DIY Dapi
Replies: 5
Views: 2814

Re: DIY Dapi

Saul wrote:
Thu Oct 20, 2022 4:33 pm
Single body
I see you're going for the soft line with the rounded edges - nice touch. It's close to my first attempt, when the filters hadn't yet arrived and I did not know their exact size yet. Is your stl downloadable somewhere?
by iconoclastica
Thu Oct 20, 2022 2:15 pm
Forum: Home-made microscope adaptations
Topic: DIY Dapi
Replies: 5
Views: 2814

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 ...
by iconoclastica
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: 501

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...
by iconoclastica
Tue Aug 02, 2022 2:45 pm
Forum: Specimens, samples and slides
Topic: practical help with ringing please
Replies: 0
Views: 913

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...
by iconoclastica
Tue Nov 02, 2021 6:33 pm
Forum: Pictures and Videos
Topic: germinating fern spores
Replies: 6
Views: 2425

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...
by iconoclastica
Tue Oct 12, 2021 4:55 pm
Forum: Camera systems and imaging
Topic: Time to ask for more help.
Replies: 10
Views: 3315

Re: Time to ask for more help.

Roldorf wrote:
Sun Oct 10, 2021 5:37 pm
Shutter lock up live view.
What's that? Is it something else than an electronic shutter?
by iconoclastica
Sat Oct 09, 2021 7:27 pm
Forum: Miscellaneous
Topic: Open source microscope
Replies: 6
Views: 2461

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...
by iconoclastica
Sat Sep 11, 2021 3:37 pm
Forum: Microscopy accessories
Topic: hand microtome
Replies: 1
Views: 1406

Re: hand microtome - plans

The technical documentaion is available from https://www.thingiverse.com/thing:4962720.
by iconoclastica
Fri Sep 10, 2021 5:50 pm
Forum: Microscopy accessories
Topic: hand microtome
Replies: 1
Views: 1406

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 ...
by iconoclastica
Sat Aug 21, 2021 8:19 pm
Forum: Home-made microscope adaptations
Topic: Rotating stage for Laborlux S
Replies: 4
Views: 4601

Re: Rotating stage for Laborlux S

Can you keep the focus centered?
by iconoclastica
Sat Aug 21, 2021 8:10 pm
Forum: Home-made microscope adaptations
Topic: Best way to darken a microscope barrel?
Replies: 9
Views: 7054

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.
by iconoclastica
Fri Aug 13, 2021 8:01 pm
Forum: Pictures and Videos
Topic: Tylenchida
Replies: 9
Views: 3202

Re: Tylenchida

The styletto is beautifully visible in the last picture. Why do you view them alive?
by iconoclastica
Fri Aug 06, 2021 11:44 am
Forum: Identification help
Topic: What is this ?
Replies: 5
Views: 2812

Re: What is this ?

It much looks like tracheids: vessel like elements on plants.
One would think that if they were legitimate medical practitioners they would either know or just send it to a Lab ...
Hmm.. do we know the patient is human..?
by iconoclastica
Thu Aug 05, 2021 8:00 pm
Forum: Identification help
Topic: I have no idea
Replies: 6
Views: 3229

Re: I have no idea

Could it be a grain of pollen?
by iconoclastica
Sat Jul 31, 2021 8:10 pm
Forum: Miscellaneous
Topic: Wooden box for Labophot (UK)
Replies: 9
Views: 4500

Re: Wooden box for Labophot (UK)

If it's once in-once out, why not hammer a crate yourself?
by iconoclastica
Fri Jul 30, 2021 7:54 pm
Forum: Pictures and Videos
Topic: Ligustrum spp. TS safranin-o stain
Replies: 10
Views: 3517

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...
by iconoclastica
Thu Jul 29, 2021 9:08 am
Forum: Pictures and Videos
Topic: germinating fern spores
Replies: 6
Views: 2425

Re: germinating fern spores

mrsonchus wrote:
Wed Jul 28, 2021 8:39 pm
Excellent - any more images?
I am trying to get the spores to develop further, but sofar I only find more of them in this protonemal stage. I just added some nutrients hoping that will make them grow on.
by iconoclastica
Wed Jul 28, 2021 8:19 pm
Forum: Pictures and Videos
Topic: germinating fern spores
Replies: 6
Views: 2425

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.
Dryopteris wallichiana germinating spores 40x
Dryopteris wallichiana germinating spores 40x
kieming3.jpg (79.55 KiB) Viewed 2425 times
by iconoclastica
Sat Jul 17, 2021 7:54 pm
Forum: Microscopes and optics
Topic: Simple method to test objective using laser pointer
Replies: 5
Views: 1835

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.
by iconoclastica
Thu Jul 15, 2021 12:00 pm
Forum: Specimens, samples and slides
Topic: Have you tried plant maceration (at home)?
Replies: 1
Views: 2533

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...
by iconoclastica
Thu Jul 01, 2021 8:45 pm
Forum: Microscopes and optics
Topic: are diaphot & optiphot revolvers interchangeable?
Replies: 0
Views: 688

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?
by iconoclastica
Sat Jun 26, 2021 12:09 pm
Forum: Important announcements
Topic: New Microscopy Wiki!
Replies: 7
Views: 10838

Re: New Microscopy Wiki!

There are thousands of fake users already. I suppose you'll have to validate new users manually...
by iconoclastica
Fri Jun 18, 2021 9:42 pm
Forum: Illumination Techniques
Topic: Phone illumination - poor man confocal
Replies: 6
Views: 4324

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...
by iconoclastica
Sat Jun 12, 2021 10:16 pm
Forum: Illumination Techniques
Topic: Overhead lighting for compound scope (T720Q)
Replies: 13
Views: 4302

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?
by iconoclastica
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: 10413

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.
by iconoclastica
Tue Jun 08, 2021 7:08 pm
Forum: Beginner's corner
Topic: Amateur microscopist discoveries?
Replies: 8
Views: 2670

Re: Amateur microscopist discoveries?

Discoveries are not made by technology, but start by having an extensive knowledge of your subject. Technology does give you an edge though, at least, when you're among the first to use it. But others will use it too and soon it is the new fashion. When a new scientific fashion rises, the old ones a...
by iconoclastica
Tue Jun 08, 2021 2:39 pm
Forum: Microscopy accessories
Topic: Plastic cover slips?
Replies: 3
Views: 2378

Re: Plastic cover slips?

I once had a batch of them off Ebay. Their transparancy was poor (milky). So at least he cheap ones I wouldn't recommend.
by iconoclastica
Mon Jun 07, 2021 1:11 pm
Forum: Beginner's corner
Topic: Adapting a computer monitor arm for B&L SZ4 boom stand??
Replies: 31
Views: 10413

Re: Adapting a computer monitor arm for B&L SZ4 boom stand??

If that works it is an interesting option. Please let us know once you have the scope and the arm operating together.