MicrobeHunter.com Microscopy Forum

pinkbeetle wrote: ↑

Mon Apr 15, 2024 3:09 pm

Hello,

… So I’m looking at doing something like this eventually, I do have arduino/electronics skills:

https://journals.plos.org/plosone/artic ... ne.0143547

…

Thanks for sharing that link :
I have only skimmed through the text, but I like the look of it so far.

MichaelG.

. Good-hearted jesting and cynicism aside … I suggest that 1.3 in the Zeiss instructions needs to be noted: The lamps may be removed from the package only if the protection mask (Cat. No. 417009) and the safety gloves with artery protection (Cat. No. 417008) are worn. … Personally, though : I couldn...

You make a good case, Alexander … and I wish you continuing happiness The more nervous amongst us have a tendency to find documents like this one from Zeiss: https://www.fluorescencemicroscopes.com/wp-content/themes/CompoundMicroscopes/pdf/Zeiss%20HBO%20100%20Microscope%20Illuminating%20Operating%20...

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short answer … Very

They are nasty dangerous things that are expensive to buy and don’t last long.

PeteM describes the problem well.

MichaelG.
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Edit: __ This is a pretty good overview:
https://zeiss-campus.magnet.fsu.edu/art ... ryarc.html

I believe that I have solved my little mystery
… here is a family member !

https://www.mikroskop-online.de/mikrosk ... otar-45cm/

MichaelG.

Several variants of the Motic LED module shown here:
https://moticeurope.com/en/accessories/lamps.html
… but not much detail.

MichaelG.

I don’t wish to hi-jack this fascinating thread, but I thought this recently acquired low-power condenser might be of interest: . IMG_9342.jpeg . MichaelG. . Edit : __ I have been racking my brains to think of a German lens designated 3cm … and the only one I have found so far is the Tessar, from Ze...

Thanks for posting that Osram link
… it’s a very useful document !

MichaelG.
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.

P.S. __ I had never seen that Motic LED module before, but I think it features in the second part of this video
https://youtu.be/46PeQ-sMA4M?feature=shared

… The camera has a 1/2.5 sensor. (This one: https://a.co/d/cbE0qu4 ) Is that a small sensor? . This might help you put that into perspective, Jackie https://en.wikipedia.org/wiki/Image_sensor_format#/media/File:SensorSizes.svg The history of sensor-sizing is rather ‘weird & wonderful’ ! MichaelG.

You are welcome, charlie g

… and I thank you for the notes about the Solar Eclipse
[ it was almost a ‘non-event’ in the U.K. of course ]

MichaelG.

I think you need to start here, Judge:
https://www.microbehunter.com/microsco ... =6&t=19517

MichaelG.

Excellent stuff, thank you
… and particularly pleasing to find that the documents are freely downloadable in PDF

MichaelG.

Thanks for this magnificent work, jayjay

May I make your life a little more difficult … by mentioning my recently acquired IMT-2

This [assuming that the 4 is slightly mis-struck] very clearly bears the Serial No. 405001

MichaelG.
.

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Thanks, Rorschach

Please do let me know if either of your new acquisitions has any similar oddities to mine.

MichaelG.

This is way too heavy for me, but you clever chaps might find it of interest:
https://opg.optica.org/oe/fulltext.cfm ... 9-27-26249

PDF is freely downloadable

MichaelG.

An excellent document, Galf
… thank you for sharing it.

The hi-res English version downloaded in a couple of seconds.

MichaelG.

I noticed that the phase turret "switching" to different annuli rings was a little rough, or so to say. I saw a video by Carl H which was extremely helpful in understanding the mechanism for the phase turret. I have a different model but it functions very similarly: https://youtu.be/QSjlgNyfwJw?si=...

Are the instructions starting on page 30 of https://www.alanwood.net/downloads/olympus-lb-objectives-sticky-tip.pdf relevant to your objective? … I applied a couple drops of acetone, and still nothing. For many years, my preferred ‘dismantling lubricant’ has been PlusGas formula A … it appears to s...

Captivating

MichaelG.

A different mystery today … How do I free-up the CT focus ring ? [ … ] MichaelG. . Panic over I first removed the two filter cubes and stored them safely in a clean box. … Then wedged the changer wheel in place and gently warmed the the whole wheel assembly with a little hot-air gun [ at a guess it...

… Is there still more to it than this? I think the “more to it” is probably Modulation Transfer Function . I am feeling too old and tired at the moment to get involved in this discussion but, if my memory serves, this is a big step in the right direction when trying to understand the difference in ...

I still have not figured out how to post images into these threads … . It would be very helpful if you could ^^^ The process is relatively simple, but only permits the use of small file sizes At the bottom of the composition-pane, there is a tab labelled Attachments via which you can insert images ...

A different mystery today … How do I free-up the CT focus ring ? This is stacked above the Magnification Changer, and illustrated in the exploded parts diagram: . IMG_9342.jpeg . But it is not obvious how it actually operates. … The two rings currently appear to be locked firmly together, but I susp...

Thanks for posting that, Pete
… I understand a little better now.

MichaelG.

CK40-EPA is mentioned twice on page A-3 of this document,
https://www.alanwood.net/downloads/olym ... manual.pdf

… but frankly, I don’t understand what they are saying

MichaelG.

Nice !

MichaelG.

Please forgive the slight digression, but this paper is rather impressive:
https://www.semanticscholar.org/paper/A ... b8209407e2

MichaelG.

Hi, […] but usually, they seem to be described as being short. Here you see the difference of cilias length, of the same protozoa, my camera/video/setup not being able to catch the details at such high speeds: […] You make a very good point … but perhaps that ‘short’ description reveals that most p...

This page may be of interest:

https://www.kodak.com/en/motion/page/w ... 2-filters/

lots of transmission curves for download.

MichaelG.

Rorschach wrote: ↑

Sat Mar 30, 2024 8:55 am

You have a nice scope in your hands there! I like the IMT-2 a lot.
[…]

Thanks for the encouraging endorsement … I must say that I am delighted with it so far

… and the ‘correction collar’ adjustment for 0 to 2 mm glass thickness is astonishing, and effective.

MichaelG.