MicrobeHunter.com Microscopy Forum

I have one in good shape, but it's missing the lamp and lamp socket.I figure it's unlikely you have the lamp socket, but if there's a chance to get parts I can't use to someone who can, I figure it's worth mentioning. I have had a couple of them, but if you have a 1036A it is pretty easy to convert ...

Someone correct me if I'm wrong, but a short focal length planoconvex lens like you would see for an aux lens mounted at the bottom of the condenser (plano toward condenser, convex toward light source) should correct that, yes?

The adjustability of the tubelength would be handy with a variety of objectives, can't imagine what that would be like to use such a mix-and-match setup though.

Hello. I'm looking for a source of parts for a 1916 Spencer Buffalo Monocular No. 15 (I think) microscope. More specifically a working turret or nosepiece. I was going to repair what I have, but alignment turned out to be a problem. I really just need the detent spring. I think that's the correct t...

Any idea what the plant is or have any images of the plant that would show identifiable traits? "Broadleaf" and "grass" don't usually go together, so I'm curious what the sample is.

I report all I find, but I can't do anything more than flag it and leave notes.

AO objectives labelled as C (C=coated) are for 160mm TL systems. Have you considered adding a pair of 15x eyepieces? Your 40x then gets you to 60x.

Edit: There's a 63x 34mm inifinity in this post viewtopic.php?f=16&t=15484

With no scale to reference it's just a wild guess, but possibly an ostracod?

It's pretty hot here and will be for a few months from now. :shock: A real rain didn't fall for a month or more, we had one just sprinkling a bit a few weeks ago... I'd like to find some rotifers, paramecium or similar earthlings and there is no pond or anything similar anywhere close, so I'm wonde...

I stumbled across an unexpected opportunity and found myself the owner of a Spencer 43x APO. This is now the second apochromat I own, the other being a very similar Leitz 40x apo. I am still in the very earliest stages of using it, so cannot say much other than that it appears to be in good shape. I...

I was asked privately what the label said and if I typically left them in place. This particular label goes along with a bit of engraving on the microscope, so removing the label doesn't "fix" the etching/scratching/marring/engraving. Typically, when they're just routine "This is property of XYZ ins...

Excellent design and execution!

Sure Squintsalot wrote: ↑

Fri Jun 17, 2022 3:35 pm

You were right! But I had to buy the POS microscope it was attached to!

Anybody want an old Leitz microscope that was stored underwater?

Cheap!

(serious inquiries only)

Pics tend to help move things. I've got some Leitz finite objectives that don't have a body...

Hello and welcome.

Never having used those products I can't comment on them, but I am certain they can provide you with many, many years of exploration and learning.

Well that now makes sense, thank you! It also helps explains why it it was it with a Spencer scope.
I was aware of such devices, but had never handled one. Nifty!

If you read the title, you know about as much about it as I do.
This eyepiece came with some other microscopy equipment, but obviously doesn't belong. It's 20.90mm or about 13/16" in diameter.
Who knows or has a good guess as to what this goes to?

I like having a 20x, so I removed the 97x oil and put one in. I'm not sure if there's some magic incantation I am missing in my stacking tools, but non-plan objectives are so much harder to stack and seem to require more images at finer distances. 22 images at 2um focus. AO15_woodchuck_flea_20x.jpg ...

Very nice. I can appreciate a nice image, but understanding what it is I am seeing is so much nicer.

That's an interesting setup, but how does it perform?

I presume the small diameter knobs just above the stage control focus, but what do the larger knobs toward the base do? Perhaps fine focus? Light intensity?

Ideally you'd want to use objectives designed for use without a coverslip. Working distances are typically small with a 40x objective, often around 0.5mm. You could try placing it on a slide and getting it centered, but you'll probably need to illuminate it from the side, which at that working dista...

Looks like an ostracod to me.

The AO Sixty are decent instruments, pretty much the same optics as one would find in a 10 or 20, the 34mm parfocal infinity objectives. Not as flexible as a 10, but they're usually a lot more affordable. Did you get one with a monocular or a bino head? I've handled both and while a monocular is per...

I finally got around to making an adapter, first image is a stack of 16 images, 4um apart. 10x objective, a flea from a woodchuck.

Thanks GerryR, I don't have a need for it myself, but others might. I have thought a couple of times about going down the OCR (Optical Character Recognition, scanning images for the text they contain) rabbithole so that some of the old manuals would be searchable, but haven't been motivated enough a...

Quite interesting, though one could get the real deal for that much!

Does it have a lever on the other side with a rotatable knob? It looks like the bertrand lens / aperture viewing unit.

My first thought was perhaps some dipteran larvae, but at 400x that seems unlikely, perhaps a spore of some sort?

Here's a crop of the back page of the catalog that came with the scope showing one of AO's camera setups for imaging with these scopes.

The only glass I've seen which yellows is stuff that was made with arsenic which can yellow from exposure as you've mentioned, but I believe the use of arsenic dropped off around WW2. I've heard that some glasses contain thorium and it will yellow with time and apparently can be reversed by exposure...

The upright case has a basic lever lock in it, but came with no key! It's a good thing I know how to impression keys as it now has a working key. It's been a few years since I've impressioned a key, so the impressioned key is a tad rough looking. I'll transfer the cuts to a new blank and it'll be li...