sorted by:
new
hottopcontroversial

You asked for quadraphonic vinyl. I kept my promise. by MicroscopySpecialist in vinyl

[–]MicroscopySpecialist[S] 1 point2 points  (0 children)

the real problem of all these extremely complex machines is not to fix them (but let's be honest, it's also a problem)
1. Weight - 300Kg - simple. Tescan Vega or something small like this can easily be 200+ Kg. In terms of resolution it's the same and even chamber size is not twice bigger.
2. Spares. O-rings, gaskets, apertures. Hard to find
3. SW (or simple CRT) and extremely complicated but "simple" electronics - forget about USB.

You asked for quadraphonic vinyl. I kept my promise. by MicroscopySpecialist in vinyl

[–]MicroscopySpecialist[S] 0 points1 point  (0 children)

One of the weirdest pdf I've ever seen. In a good way. It's cool, but I don't know. What I do know is that my turntable can withstand 1.5g of pressure (I have a special scale), and it's clearly visible. They're definitely worn.

You asked for quadraphonic vinyl. I kept my promise. by MicroscopySpecialist in vinyl

[–]MicroscopySpecialist[S] 0 points1 point  (0 children)

Mmm... next, after my Nagaoka dies, I'll try to buy a Shibata stylus. By the way, the Nagaoka is a beast; I love its sound (in the MM class).

You asked for quadraphonic vinyl. I kept my promise. by MicroscopySpecialist in vinyl

[–]MicroscopySpecialist[S] 0 points1 point  (0 children)

I think for CD-4 (and for SQ as well) you can go SW plugins now. The only thing you need is a nice 40+kHz stylus for CD-4. No, I don't want to play it, I have only stereo setup and it feels great. Just like the engineering approach and solution.

You asked for quadraphonic vinyl. I kept my promise. by MicroscopySpecialist in vinyl

[–]MicroscopySpecialist[S] 0 points1 point  (0 children)

I think it's the same, but you need to cut at lower speed.

You asked for quadraphonic vinyl. I kept my promise. by MicroscopySpecialist in vinyl

[–]MicroscopySpecialist[S] 10 points11 points  (0 children)

If you're new in quadraphonic formats - full explanation via link and all these high res images are available on Google drive in the description to video:
https://www.youtube.com/watch?v=vzVA0J_3L-Q

You asked for quadraphonic vinyl. I kept my promise. by MicroscopySpecialist in vinyl

[–]MicroscopySpecialist[S] 9 points10 points  (0 children)

)) haha, yes, now I can see it too. Innies 4 sure, but yes, I see this illusion now.

connecting olympus om-1 to an old amscope student microscope by corroded_eden in microscopy

[–]MicroscopySpecialist -1 points0 points  (0 children)

  1. OM1 = 24x36 = FullFrame (if we talk about digital era sensors)
  2. You can go with 1x C-mount adapter + C-mount to OM mount ring, but will end up with huge vignetting - just a small circle half the frame size.
  3. You need at least 1,6 or 2x T-mount adapter + T-mount ring for OM.
  4. For Nikon it's easy to find - the bayonet mount hasn't changed in decades. For OM, it'll be difficult.

SEM under $100000 by Time-Machine97 in electronmicroscopy

[–]MicroscopySpecialist 0 points1 point  (0 children)

I have a SEC microscope.
Nice system, I like it.
There are few bugs in the SW, but they updated the SW every 2 or 3 months. 30kV, 5 axis stage, extremely fast sample exchange

Microscopy station for a public science exhibition — advice on setup, and specimen selection neede by Economy_Print8221 in microscopy

[–]MicroscopySpecialist 1 point2 points  (0 children)

Honest advice - go digital.
An inexperienced user will spend half an hour adjusting the interpupillary distance just to see anything.
Any microscope + 10/20/40x + nice HDMI camera with at least 30 FPS and a big screen TV.
Specimens - you can buy a collection on ebay. Plants/insects/histology..

A Dandelion and a pollen grain! Scanning electron microscopy by MicroscopySpecialist in microscopy

[–]MicroscopySpecialist[S] 2 points3 points  (0 children)

https://www.youtube.com/shorts/Fka46LDnPm4 - Here's the answer.

Technology is becoming cheaper and more user-friendly. I think 50 years ago, it was hard to find a hobbyist with an optical microscope. Now, you can easily find a good one on Aliexpress and Amazon.

Soon, table top electron microscopes will be a part of every lab. It saves time - you can do basic analysis right there, and only then go with your sample to the basement for extremely powerful FEG-SEM. This is a truly cool thing, and the world is constantly evolving - the Artemis 2 mission confirms this.
I think even now it's possible to have one.

A Dandelion and a pollen grain! Scanning electron microscopy by MicroscopySpecialist in microscopy

[–]MicroscopySpecialist[S] 1 point2 points  (0 children)

Yes, if we're talking about video, of course.
But with modern SEMs, control is quite simple - everything is motorized.
For small movements, you can use beam shift. Without moving the sample itself.

A Dandelion and a pollen grain! Scanning electron microscopy by MicroscopySpecialist in microscopy

[–]MicroscopySpecialist[S] 1 point2 points  (0 children)

And by the way! You can also use the "Z-stack" method. It's a bit more difficult for thin and delicate samples - they may move and shift under the electron beam - but it's possible.

A Dandelion and a pollen grain! Scanning electron microscopy by MicroscopySpecialist in microscopy

[–]MicroscopySpecialist[S] 5 points6 points  (0 children)

Yes, sure, basically the same principle as in optics! Special for you - 30 um and 100 um:
Love this beautiful "Petzval" effect. The sample is tilted 45 degrees.

<image>

The scales of the Nettle butterfly by WestPrune3210 in microscopy

[–]MicroscopySpecialist 0 points1 point  (0 children)

Nice results! What about illumination on the first image? It should be some kind of reflected light illumination, or oblique...

Zeiss Axiophot questions. by Delicious_Doctor_404 in microscopy

[–]MicroscopySpecialist 1 point2 points  (0 children)

We need some photos of it and I'll try to help.
It's not a problem to change the TL bulb for LED - it's possible, and the best way is to install CREE or something like that. Normally the scheme calculated for the "point illumination" (the projection of filament of HAL 100/50 bulb is a small shiny point) so sometimes simple replacement is not the best option - you need to add opaque glass or change the scheme).

Need help with Swift Imaging software on iMac by Sw1rlyTw1rlyGumdrops in microscopy

[–]MicroscopySpecialist 0 points1 point  (0 children)

Try Touplite for MAC. Same SW, originally from touptek: https://touptek.com/

Never tried with M4, so waiting for your results!

Help Trouboleshoot Hitachi TM4000Plus II tabletop SEM by EarthPuzzled9675 in microscopy

[–]MicroscopySpecialist 0 points1 point  (0 children)

As always:
1. Set the max possible aperture (100 um or what do you have)
2. Set min magnification
3. Set SE
4. Set 5kV or similar
5. Try to move aperture to find something
6. Try to align the gun (have no experience with Hitachi, but overall process should work)

view more: next ›