MicrobeHunter.com Microscopy Forum

Thanks for the welcomes Charlie and Mike! Please share images in our forum when you have the time I will do! I have a lot of pretty pictures already :) . And indeed I'm so busy, but i will post when i have time. Being busy with my micrscope is very relaxing. Olympus made many very fine microscopes a...

Thanks 75RR! The links are really interesting.

Thanks microbob. Trinocular heads are quite rare I didn't even know that they existed. And now I'm really glad I have one. I don't like microscopes in hospital-beige colours I totally agree! Black is the best color. But this grey is actually okay too! And an inverted microscope!!! So awesome. Never ...

Thanks Tom! Yes the microscope is really great. Couldn't have asked for a beter one. Thanks for the tip. Will keep it in mind

What are these diatoms beautiful!! And the microscope too.

Wow, that's the one I have! Thanks Notice that the phase condenser in the Digital Collection site has numbered positions: 10, 20 etc. These refer to phase objective. About the photo tube: Luckily, the EHT microscope takes an FK, rather than an NFK photo eyepiece. The latter type are rare and very e...

75RR wrote:Link to original spec photo eyepieces: http://www.alanwood.net/photography/oly ... copes.html

Thanks for the site! Didn't know that there are so many photo eyepieces. Alanwood is great.

piilani2000 wrote:that and the parfocality differential will be overcome by putting in the correct photo eyepiece..

Hmm... that's unfortunate. Thanks for the information !

I think that those are yeast cells. Not sure tho. When I looked at yeast under the microscope, it looked like this: And it looks quite similar.

75RR wrote:Perhaps you would like to take a look athttps://digital.lib.ecu.edu/22096#detailsshowing a similar microscope, with a phase contrast condenser.

Wow, that's the one I have! Thanks

I can't tell by the photo or the manual but there 'should' be a way to unlock it. (Perhaps turning the silver ring) I will look if it can be done! I didn't found something in the manual either. As to the bulb filament, once it is focused and centered there is no need to redo these steps again unles...

Thank you so much for your tips and advice, Hobbyst46! I am gonna look at page 15 and 16. I don't think that they are parfocal because when I look through the photo eyepiece I have to focus again. How important is it for the photo eyepiece to be parfocal?

Yes, I did find that site, too. Really helped a lot! I learned how to use the iris diaphragm for example. I just looked and the eyepiece on the phototube has PH2,5X. Is that the same as a FK2,5X?

Hello I have got my first microscope two months ago and it's an Olympus EHT-431. microscoop.jpg It's trinocular and a phase contrast microscope. It has an NA 1.25 Abbe Condenser. Currently, I use my phone to take photographs, but I'm planning on buying a T2 ring soon. I do have a T2 ring For a Fujic...

Thank you 75RR!
It was used at my dads work for a lot of years, but they bought a new one. I will post pictures of the microscope later today.

Hello everyone! My dad gave me an old microscope two months ago and during my search which model it was I found this forum. I figured out that it's an olympus EHT-431 and at least 30 years old. It's a phase contrast microscope and so awesome. I'm still at high school and next year i'm planning on st...