Thanks for the [overnight for me] burst of activity
MichaelG.
Search found 3976 matches
- Wed Jan 10, 2024 8:38 am
- Forum: Microscopes and optics
- Topic: Correction Collar : Leitz [surprise]
- Replies: 11
- Views: 12630
- Tue Jan 09, 2024 10:40 pm
- Forum: Microscopes and optics
- Topic: Correction Collar : Leitz [surprise]
- Replies: 11
- Views: 12630
Re: Correction Collar : Leitz [surprise]
Thanks for that Erik … I will sleep better now
MichaelG.
MichaelG.
- Tue Jan 09, 2024 9:08 pm
- Forum: Introduce yourself
- Topic: Знакомцтво
- Replies: 1
- Views: 4818
Re: Знакомцтво
Welcome, Alexander MichaelG. Translation to English reads: Hello, my name is Alexander, I'm new to microbiology, but I'm very interested in the B 102 C microscope, two capacitors, light and darkened, but this microscope is not very suitable for me, I came across the choice of Olympus BH2 Flourescent...
- Tue Jan 09, 2024 8:46 pm
- Forum: Microscopes and optics
- Topic: Correction Collar : Leitz [surprise]
- Replies: 11
- Views: 12630
Re: Correction Collar : Leitz [surprise]
.
316 views so far … and not a single comment
I am a little disappointed
MichaelG.
316 views so far … and not a single comment
I am a little disappointed
MichaelG.
- Sun Jan 07, 2024 7:56 am
- Forum: Beginner's corner
- Topic: Question Regarding Darkfield Condensers
- Replies: 39
- Views: 115041
Re: Question Regarding Darkfield Condensers
An interesting little mechanism … thanks for sharing the photos
MichaelG.
MichaelG.
- Sun Jan 07, 2024 7:48 am
- Forum: Microscopes and optics
- Topic: Correction Collar : Leitz [surprise]
- Replies: 11
- Views: 12630
Correction Collar : Leitz [surprise]
.
I was rather surprised to find this “admission” by Leitz, and would welcome comments from the wise:
… perhaps the original German expresses it a little differently [?]
.
Ref. https://earth2geologists.net/Microscope ... s_1967.pdf
.
MichaelG.
I was rather surprised to find this “admission” by Leitz, and would welcome comments from the wise:
… perhaps the original German expresses it a little differently [?]
.
Ref. https://earth2geologists.net/Microscope ... s_1967.pdf
.
MichaelG.
- Thu Jan 04, 2024 10:23 pm
- Forum: Microscopes and optics
- Topic: No power to light sources on Leica DMRE
- Replies: 9
- Views: 9616
Re: No power to light sources on Leica DMRE
I’m afraid this won’t help [or make you happy] : https://www.ebay.co.uk/itm/256205241887
Hopefully, in amongst that lot … you might just possibly find a blown fuse !
… if not, it could be a long investigation.
MichaelG
Hopefully, in amongst that lot … you might just possibly find a blown fuse !
… if not, it could be a long investigation.
MichaelG
- Thu Jan 04, 2024 7:24 pm
- Forum: Resources (online, books etc.)
- Topic: Plastistone
- Replies: 1
- Views: 5351
Plastistone
An interesting short paper, which was mentioned on Apple News [Popular Mechanics] : https://www.sciencedirect.com/science/article/abs/pii/S0012825223003094?via%3Dihub Free download if you have ‘Institutional Access’ Sounds to me like Gaia is taking care of herself … but the naive humans don’t unders...
- Thu Jan 04, 2024 12:39 pm
- Forum: Miscellaneous
- Topic: Neurotransmitters
- Replies: 5
- Views: 3749
Re: Neurotransmitters
Thanks for sharing the video, Sabattni
It’s worth clicking the Learn more link at the bottom, which leads to:
https://alleninstitute.org/
… and there is a Newsletter sign-up available on this page:
https://alleninstitute.org/education/
MichaelG.
It’s worth clicking the Learn more link at the bottom, which leads to:
https://alleninstitute.org/
… and there is a Newsletter sign-up available on this page:
https://alleninstitute.org/education/
MichaelG.
- Thu Jan 04, 2024 6:55 am
- Forum: Home-made microscope adaptations
- Topic: Dichromatic Illumination?
- Replies: 61
- Views: 115429
Re: Dichromatic Illumination?
Thanks for heads-up, and the photos. To me, what you have shown with the green LED looks great to me... but disappointing for you. Because of this it is obvious that I don't know much about microscopy, and have lots to learn. . Fear Not !! We all have lot to learn … that’s one of the beauties of th...
- Wed Jan 03, 2024 10:30 am
- Forum: Home-made microscope adaptations
- Topic: Dichromatic Illumination?
- Replies: 61
- Views: 115429
Re: Dichromatic Illumination?
My solution to the above post is to drill a hole into the end and insert an optic fibre. Then light proof the whole thing, except for the end of the projected fibre. . I regret to say, you are likely to be disappointed … Fibre Optics have an ‘exit angle’ MichaelG. . Here are some reasonably self-ex...
- Tue Jan 02, 2024 6:42 pm
- Forum: Home-made microscope adaptations
- Topic: Dichromatic Illumination?
- Replies: 61
- Views: 115429
- Tue Jan 02, 2024 1:30 pm
- Forum: Home-made microscope adaptations
- Topic: Dichromatic Illumination?
- Replies: 61
- Views: 115429
Re: Dichromatic Illumination?
The subject gets a bit heavy, Gerry … but this is a good introduction:
https://www.animations.physics.unsw.edu ... mixing.htm
The visual perception of a particular colour does not necessarily mean that colour’s actual wavelength is present.
MichaelG.
https://www.animations.physics.unsw.edu ... mixing.htm
The visual perception of a particular colour does not necessarily mean that colour’s actual wavelength is present.
MichaelG.
- Tue Jan 02, 2024 9:03 am
- Forum: Home-made microscope adaptations
- Topic: Dichromatic Illumination?
- Replies: 61
- Views: 115429
Re: Dichromatic Illumination?
… I plan to use aluminium foil to cover the light head; it may make a slightly brighter beam, as well as blocking the light leakage. An impressive start !! In an ideal world, however, you would polish those sawn faces and get total internal reflection [ big trade-off in the realm of reward-for-effo...
- Mon Jan 01, 2024 8:25 pm
- Forum: Resources (online, books etc.)
- Topic: Online short course by OU - UK only
- Replies: 3
- Views: 3353
Re: Online short course by OU - UK only
. Thanks for the link … at my age, I was rather pleased to read this: You can start this course right now without signing-up. Click on any of the course content sections below to start at any point in this course. If you want to be able to track your progress, earn a free Statement of Participation,...
- Fri Dec 29, 2023 8:55 pm
- Forum: Illumination Techniques
- Topic: Dangerous-Just Thinking Again!
- Replies: 14
- Views: 4877
Re: Dangerous-Just Thinking Again!
. Sorry, Gerry … I may not have been sufficiently explicit I was referring you to my post #8 in that discussion … which recommends looking at the Adafruit NeoPixels [from the linked page.] …. Red, green and blue LEDs are integrated alongside a driver chip into a tiny surface-mount package controlled...
- Fri Dec 29, 2023 1:10 pm
- Forum: Illumination Techniques
- Topic: Dangerous-Just Thinking Again!
- Replies: 14
- Views: 4877
- Wed Dec 27, 2023 10:59 pm
- Forum: Home-made microscope adaptations
- Topic: Dichromatic Illumination?
- Replies: 61
- Views: 115429
- Wed Dec 27, 2023 7:38 pm
- Forum: Home-made microscope adaptations
- Topic: Dichromatic Illumination?
- Replies: 61
- Views: 115429
Re: Dichromatic Illumination?
It may be worth exploring these: /https://www.adafruit.com/category/168url
.
Ada deserves a lot of credit for her development work, but I should mention that even-cheaper ‘clones’ are to be found on ebay.
MichaelG.
.
Ada deserves a lot of credit for her development work, but I should mention that even-cheaper ‘clones’ are to be found on ebay.
MichaelG.
- Wed Dec 27, 2023 7:20 am
- Forum: Home-made microscope adaptations
- Topic: My Hobby Scope Set-up (WIP)
- Replies: 5
- Views: 1854
Re: My Hobby Scope Set-up (WIP)
.
In the immortal words sung by Julie Andrews:
MichaelG.
In the immortal words sung by Julie Andrews:
I wish I could be so meticulous and thorough.… a very good place to start.
MichaelG.
- Tue Dec 26, 2023 2:52 pm
- Forum: Introduce yourself
- Topic: Greetings from London, UK
- Replies: 1
- Views: 1868
Re: Greetings from London, UK
Welcome aboard !
That is a magnificent ‘first microscope’ … !!!
MichaelG.
That is a magnificent ‘first microscope’ … !!!
MichaelG.
- Tue Dec 26, 2023 6:32 am
- Forum: Microscopes and optics
- Topic: Is my head broken/misaligned?
- Replies: 10
- Views: 3056
Re: Is my head broken/misaligned?
.
Ron Green’s brilliant paper is available here, in several formats: https://archive.org/details/APracticalG ... ollimation
I suggest you skim through it, for an appreciation of the problem, and then return the Amscope.
MichaelG.
Ron Green’s brilliant paper is available here, in several formats: https://archive.org/details/APracticalG ... ollimation
I suggest you skim through it, for an appreciation of the problem, and then return the Amscope.
MichaelG.
- Mon Dec 25, 2023 5:51 pm
- Forum: Beginner's corner
- Topic: Question Regarding Darkfield Condensers
- Replies: 39
- Views: 115041
Re: Question Regarding Darkfield Condensers
Thanks for that ^^^
MichaelG.
MichaelG.
- Mon Dec 25, 2023 7:59 am
- Forum: Microscopes and optics
- Topic: Thinking about buying a Neophot 21, need information about it
- Replies: 9
- Views: 5996
Re: Thinking about buying a Neophot 21, need information about it
On a happier note: the ‘scope obviously has great potential
[https://www.meteorite-times.com/Back_ ... n_Desk.htm
[https://www.meteorite-times.com/Back_ ... n_Desk.htm
- Mon Dec 25, 2023 7:44 am
- Forum: Microscopes and optics
- Topic: Thinking about buying a Neophot 21, need information about it
- Replies: 9
- Views: 5996
Re: Thinking about buying a Neophot 21, need information about it
.
I haven’t found a downloadable version, but this appears to be the the document you need:
https://gandmtools.co.uk/product/carl ... 80214876/
MichaelG.
I haven’t found a downloadable version, but this appears to be the the document you need:
https://gandmtools.co.uk/product/carl ... 80214876/
MichaelG.
- Mon Dec 25, 2023 7:32 am
- Forum: Microscopes and optics
- Topic: Thinking about buying a Neophot 21, need information about it
- Replies: 9
- Views: 5996
Re: Thinking about buying a Neophot 21, need information about it
I suggest you ignore the Xenon lamp option, and concentrate on the rest of it.
They are expensive, short-lived, and hazardous.
MichaelG.
They are expensive, short-lived, and hazardous.
MichaelG.
- Mon Dec 25, 2023 7:18 am
- Forum: My microscope
- Topic: FOR STARTERS
- Replies: 6
- Views: 3060
Re: FOR STARTERS
I think you have made an excellent start with the new microscope … methodical tests, using an easily recognisable specimen * Well done ! . As you evidently have an iPhone, my tip would be to grab these two very useful Apps: https://apps.apple.com/gb/app/koehler-tutor/id1281328178 https://apps.apple....
- Sun Dec 24, 2023 8:36 pm
- Forum: Beginner's corner
- Topic: Question Regarding Darkfield Condensers
- Replies: 39
- Views: 115041
Re: Question Regarding Darkfield Condensers
Thanks for the correction … I did wonder, but the screws on mine look much longer so I wasn’t sure.
MichaelG.
MichaelG.
- Sun Dec 24, 2023 4:54 pm
- Forum: Beginner's corner
- Topic: Question Regarding Darkfield Condensers
- Replies: 39
- Views: 115041
Re: Question Regarding Darkfield Condensers
Okay. After reading everything I could find in the forum, carefully checking specs, and measuring my condenser holder, I decided to try this Spencer condenser … I have a nice example of that one, in a good box complete with some funnel stops Perhaps most relevant to your difficulty … it’s assembled...
- Sat Dec 23, 2023 6:16 am
- Forum: Illumination Techniques
- Topic: Experience with µstuff's Flashgun Microscope Adapter.
- Replies: 3
- Views: 1424
Re: Experience with µstuff's Flashgun Microscope Adapter.
I was not familiar with your Flashgun … but this appears to be it: https://uk.neewer.com/products/on-off-camera-flash-66600090 From what you write, it does seem that you simply need more light on the specimen … but before making a potentially expensive purchase, I would investigate the ‘metering’ as...