MicrobeHunter.com Microscopy Forum

One way to look at it if you return them, you could kill more trudging to the water and back to release them, than are in the test tube. One thing you can do is put them in a jar, add some chlorine-free water to top it up. Add a few decaying leaves, and a few grains or rice and very now and again, a...

The NFK is needed for any of these:

https://drive.google.com/open?id=191X1K ... SRvW4vO9Zo

https://drive.google.com/open?id=1AGzKR ... FMulj0Mzk-

Carl

PeteM,

Great idea. I could fit a dozen in the space of the stove, easily. It's outta' here...

Carl

So now I'm seeing an egg, sunny side up, on the heated stage. It could work!

Carl

Over the past seven or eight years, I have been an avid microscopy hobbyist. My interests have been primarily focused on Olympus scopes, especially the BH-2 line. I have devoted a great deal of time to collecting (some would say hoarding) and learning to repair and restore these microscopes. This ho...

Looking for a single Olympus SWK 10 ocular.

Carl

Thanks all. I have found this item. Thanks Chris!

Darkfield is inherently lower resolution than brightfield, and also is not a faithful representation of the specimen image, due to the loss of the zero-order light in the fourier-reconstructed (via interference) final image. Carl I should have been more clear in what I was trying to say. True, the ...

Darkfield is inherently lower resolution than brightfield, and also is not a faithful representation of the specimen image, due to the loss of the zero-order light in the fourier-reconstructed (via interference) final image. At highest power, the objective NA must in practice be limited either by an...

sombre wrote:Many thanks to all for the help and suggestions.
I think I will go down the diy route until such times as I can find the correct condenser etc:
Again many thanks.

Sombre

There is a seller on eBay selling a nice system that works with the standard BH2-CD abbe condenser. Check it out.

Carl

I have released another significant update to this document. It now includes a comprehensive troubleshooting section, complete with flowcharts. It went from 22 to 34 pages. Carl Edit 4/14/2019: Replaced outdated link with a link to the master index, which always contains the most recent versions: ht...

Wow Bill,

Thanks for the excellent post!

Carl

Apochronaut, PM sent.

Carl

The thing barely gets out of the light path as it is. If the OD were much bigger, it probably wouldn't.

Carl

Yes, heat resistance would be the problem with 3D printing. Maybe some of the uv curable resins would be up to the task, but I don't know. Now that I know that I'm not likely to find exact replacement, I may pull the bottom back off and have anoth look. I may just be able to cement a larger disk on ...

wporter, Yes, that is exactly the part! The plastic gets well blasted with heat from the 20W lamp. The carrier was broken in half, so I concur it's a fragile part. I have it epoxied back together with JB Weld, so it might work. But I don't have the filter either. Please let me know if you are able t...

Apochronaut, Right between the 7388 Esb lamp and the diffuser in the lamp inlet optics, there is a filter holder that swings in and out, as controlled by the "blue" knob on the front. The blue filter is missing , and the plastic holder is broken. There is also a neutral density filter, after the inl...

I'm looking for a few parts to complete my Reichert era Microstar IV. I need the blue filter, and if possible, the swing out carrier for this filter, that's in the base of the unit. Please PM me if you have these parts.

Carl

In "The Last Man On Earth", Vincent price is a researcher, using a 6-inch toy microscope at home. It's funny to watch him hunch down and peer into the little toy. As the last man on earth, will full run of the town by daylight, he could certainly find a real one. I'm just saying.

Carl

Hi all, I would expect to encounter really vintage stands as set props in movie scenes evoking a lone scientist in the laboratory, 19th century plot times. But I just encountered my Nikon-Labophot Pol stand in a recent "B" movie with major film stars! There my stand 'acts scientific' as the main se...

My quest for the elusive amoeba is described in My Story linked here:

Edit 4/14/2019: Replaced outdated link with a link to the master index, which always contains the most recent versions:

https://drive.google.com/open?id=0B7ckZ ... nFYVDJSRW8

Carl

Evan,

Those sure truly some nice images. Tell us about the setup you used for these polarizing images. How did you outfit your BHTU to take these?

Carl

This was in Microbehunter issue #54:


Edit 4/14/2019: Replaced outdated link with a link to the master index, which always contains the most recent versions:

https://drive.google.com/open?id=0B7ckZ ... nFYVDJSRW8

Carl

Sorry, I was too vague. I meant to say there are coarse-focus tension rings on some scopes, like Nikon Labophot 2, which you can unlock. But twisting coarse focus knobs against each other, on some scopes, such as a Nikon inspection scope, will damage focus mechanisms beyond repair. Sorry to resurre...

Lilly, just make sure you don't ever get oil on any of the other objectives. They can be ruined by the oil.

Carl

The extreme heat these things see in operation greatly accelerates their oxidation. I think something like Dow DC4 could work here, but I'm not sure what it's upper temperature rating is.

Carl

American Science and Surplus used to have lomo compensating eyepieces for sale. I bet they still do. Seems like they were $20 each,

Carl

I'm not sure where it was, but I helped somebody with this a while back, so I went ahead a wrote it up. It is the procedure for fixing sticky spring-loaded objectives in the Olympus LB series. Edit 4/14/2019: Replaced outdated link with a link to the master index, which always contains the most rece...

If you have any old Olympus BH-2 stuff, such as parts (gears, washers, knobs, damaged stages, you name it) that you thought you might never use, or that you thought had no value, contact me. I just happen to be in the market!

Carl

I have released the document covering the Olympus BH2-BI30 binocular viewing head.

Edit 4/14/2019: Replaced outdated link with a link to the master index, which always contains the most recent versions:

https://drive.google.com/open?id=0B7ckZ ... nFYVDJSRW8

Carl

I don't have an Olympus microscope but I took a peek at your guide to working on the focus block and found it to be very clear and detailed. Excellent photos show every aspect of the process. Just wondering if you sell refurbished scopes? Bill, Thanks for the feedback. I'm slowly working my way thr...