MicrobeHunter.com Microscopy Forum

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...

GerryR wrote: ↑

Tue Jan 02, 2024 2:04 pm

… I think, still, that the OPs project will still offer some interesting results …

Most definitely … I’m looking forward to seeing them

MichaelG.

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.

… 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...

. 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,...

. 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...

Have a look at the link I posted here, Gerry:

viewtopic.php?f=12&t=19355

Post #8

MichaelG.

I will try again
MichaelG.

https://www.adafruit.com/category/168

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.

.

In the immortal words sung by Julie Andrews:

… a very good place to start.

I wish I could be so meticulous and thorough.

MichaelG.

Welcome aboard !

That is a magnificent ‘first microscope’ … !!!

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.

Thanks for that ^^^

MichaelG.

On a happier note: the ‘scope obviously has great potential

[https://www.meteorite-times.com/Back_ ... n_Desk.htm

.

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 suggest you ignore the Xenon lamp option, and concentrate on the rest of it.

They are expensive, short-lived, and hazardous.

MichaelG.

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....

Thanks for the correction … I did wonder, but the screws on mine look much longer so I wasn’t sure.

MichaelG.

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...

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...

As the year draws to a close … it’s worth viewing/downloading the December 2023 image from the RMS calendar:
https://www.rms.org.uk/library/rms-calendar.html

MichaelG.

WARNING : When coleslaw or any similar food product reaches its expiration date, it's a good idea to err on the side of caution and discard it. Signs of spoilage may include off smells, changes in color or texture, or the presence of mold. [***] ####://watermelongame.org] Watermelon Game [/***] The...

To keep the experiment simple … I am about to try uploading the same small scan that I did before: . and yes, I get the same error message. MichaelG. . Edit : __ the details are beyond my comprehension, but this appears to be a common problem with phpBB . https://www.phpbb.com/community/viewtopic.ph...

Thanks, Frankiev … I will have a dig-around later

MichaelG.

It would probably be very helpful if you could provide a link to:

a series of excellent photos uploaded by gpmathews

MichaelG.

Sure Squintsalot wrote: ↑

Sat Dec 16, 2023 4:54 pm

I've tried ALL formats, just to see....

But I only load .jpegs to this site and even the same images I've loaded to other threads on this site won't upload.

Yeah … well ^^^

You’re welcome !

MichaelG.
.

.
Edit: __ it is, of course, a photo, of a photocopy, of an illustration in a book

Testing
MichaelG.

What format are you trying to upload ?

Happy to try an experiment from here

MichaelG.

No personal experience … but I would think it’s a very sensible idea

MichaelG.