Search found 110 matches

by microb
Wed Jan 15, 2020 3:38 pm
Forum: Microscopy accessories
Topic: Petroscope
Replies: 2
Views: 56

Re: Petroscope

If you are looking at Radical, I'd avoid them unless you know someone that bought a particular model and was somehow ok with it. I bought a "Radical 1500x Trinocular Steel Aluminium Alloy Metal Testing Lab Metallurgical Reflected Light Microscope with Polarizing and XY stage" off of Amazon in 2018, ...
by microb
Fri Jan 03, 2020 5:40 am
Forum: Microscopes and optics
Topic: Zeiss AxioPlan 2 Filter Cube
Replies: 1
Views: 58

Zeiss AxioPlan 2 Filter Cube

This is probably one of the more complicated contouring curves I’ve done so far in Fussion360.

This is the lower half of a Zeiss AxioPlan 2 microscope filter cube.
by microb
Thu Jan 02, 2020 9:23 pm
Forum: Microscopes and optics
Topic: Olympus AX Slides
Replies: 4
Views: 166

Re: Olympus AX Slides

This is the AX-PO with an angled polarizer. Note the arrows in the pictures show alignment going the length of the slide, and that is the angle of rotation.
by microb
Thu Jan 02, 2020 2:25 am
Forum: Microscopes and optics
Topic: Olympus AX Slides
Replies: 4
Views: 166

Re: Olympus AX Slides

So I'm still trying to get the hang of Fusion360's drawing option. But I got the AX-AN slide I think reasonably accurate.
by microb
Wed Jan 01, 2020 2:11 am
Forum: Microscopes and optics
Topic: Olympus AX Slides
Replies: 4
Views: 166

Re: Olympus AX Slides

Maybe it is for the same reason ZYGO tilted these parallel glass plates as shown here in figure 3 where a "small tilt angle for both plates directs unwanted reflections off axis, where they are blocked by internal apertures,..."

The BX slides do not have angles on them.
by microb
Tue Dec 31, 2019 8:45 am
Forum: Microscopes and optics
Topic: Olympus AX Slides
Replies: 4
Views: 166

Olympus AX Slides

Finally assembled a complete collection of AX slides.

Note how the polar filters are mounted at an angle.
by microb
Sun Dec 29, 2019 5:23 am
Forum: Microscopy accessories
Topic: Leica DM IL Annulus
Replies: 4
Views: 691

Re: Leica DM IL Annulus

I hadn't realized it, but eh condenser lens has S55 written on it. There are annuli with S55 written on them. So hopefully this is a match.
by microb
Sat Dec 28, 2019 4:48 am
Forum: Microscopes and optics
Topic: Leica DM IL Light Source Optics Window
Replies: 6
Views: 203

Re: Leica DM IL Light Source Optics Window

So this is what it looks like so far. You can see the crack. An almost closed holding C metal ring snaps next to it from the short side. So a ~3mm gap is milled into the black holder for the glass and ring. The glass is glued somehow. So why a ring? Also the surface seems pitted. It feels smooth, bu...
by microb
Fri Dec 27, 2019 4:13 pm
Forum: Microscopes and optics
Topic: Leica DM IL Light Source Optics Window
Replies: 6
Views: 203

Re: Leica DM IL Light Source Optics Window

I got the optics window way cleaner. It still has smudges that are not coming off without a lot of q-tip scrubbing. The glass seems smooth, but has a crack. Maybe the crack was from a high temperature change. Don't know. Since it's crack, I'd like to replace it. But it seems glued in there even thou...
by microb
Thu Dec 26, 2019 6:03 am
Forum: Microscopes and optics
Topic: Differences between various Leica DM*** models?
Replies: 12
Views: 357

Re: Differences between various Leica DM*** models?

I think they all have screws holding them in. No dovetails.

If anyone finds meaning in the R, X, E, and B; I'd be curious to know.
by microb
Thu Dec 26, 2019 5:24 am
Forum: Microscopes and optics
Topic: Differences between various Leica DM*** models?
Replies: 12
Views: 357

Re: Differences between various Leica DM*** models?

The objective turret is removable and has the turret built in if there. Is the DMRB you mention with its original objective turret? You can buy parts and put them in these unit to add features to a reflective axis.
by microb
Thu Dec 26, 2019 3:33 am
Forum: Microscopes and optics
Topic: Differences between various Leica DM*** models?
Replies: 12
Views: 357

Re: Differences between various Leica DM*** models?

It would be nice to find more documentation on the DMR series. Leica makes it hard to do that. The DMRXE seems to have the E indicate that there is a turret for DIC prisms just above the objective. The ones without the E are missing that turret. There can be three turrets above the objectives. The m...
by microb
Thu Dec 26, 2019 2:47 am
Forum: Microscopes and optics
Topic: Leica DM IL Light Source Optics Window
Replies: 6
Views: 203

Leica DM IL Light Source Optics Window

Just above the phase contrast slide, there are some circular planar windows. One is frosted. And one has on both sides some stuff that seems to slowly dissolve in acetone. That window does not come out despite removing its mounting ring. So that stuff has glued it or it was cemented. Not certain. An...
by microb
Tue Dec 24, 2019 1:43 am
Forum: Microscopy accessories
Topic: Leica DM IL Annulus
Replies: 4
Views: 691

Re: Leica DM IL Annulus

So I'll try this, but it looks like the part number is an S55. The diameter looks right. It's basically a cylinder with flexing bow arms on the sides to hold it in the brass ring of the slide. https://www.ebay.com/itm/S55-Leica-Phase-Contrast-Annular-Ring-PH2/323941938016?hash=item4b6c71b360:g:TtwAA...
by microb
Mon Dec 23, 2019 12:56 am
Forum: Microscopy accessories
Topic: Leica DM IL Annulus
Replies: 4
Views: 691

Re: Leica DM IL Annulus

So what part do I buy to fill this Leica DM IL's slide holder? This Annulus is too big and will not sit inside the 29.9mm brass holder that screws on the end of the slide can adjust and center.

Any help appreciated.

Thanks.
by microb
Sun Dec 01, 2019 3:15 am
Forum: Miscellaneous
Topic: Microlife Services (Klaus Kemp)
Replies: 4
Views: 353

Re: Microlife Services (Klaus Kemp)

I bought slides from him a month ago. But he did take time to get back.
by microb
Fri Nov 29, 2019 2:08 am
Forum: Microscopy accessories
Topic: Leica DM IL Annulus
Replies: 4
Views: 691

Leica DM IL Annulus

So what annulus actually fits the Leica DM IL 090.131.001?

The one I bought here is too big to go into the brass centerable holder.

Thanks,
by microb
Tue Nov 19, 2019 9:57 pm
Forum: Microscopes and optics
Topic: Leica DM IL (searching for correct set up info)
Replies: 8
Views: 878

Re: Leica DM IL (searching for correct set up info)

Hi Brad,

Thanks for mentioning the binocular head.

So I'm still hunting for info on how moving a 160mm objective works for focusing.

I found the design patent for a slightly later model. So still looking.

https://patents.google.com/patent/USD354299S/en
by microb
Thu Nov 14, 2019 8:52 pm
Forum: Microscopes and optics
Topic: Leica DM IL (searching for correct set up info)
Replies: 8
Views: 878

Re: Leica DM IL (searching for correct set up info)

Hi PeteM, Yes, for inverted the nose piece on infinity focus moves and on fixed length the stage moves. I'm trying to understand this microscope where the nose moves, but the objectives that always get sold with it (possibly incorrectly) are 160mm. I'll try to get the lamp running here and experimen...
by microb
Thu Nov 14, 2019 7:24 pm
Forum: Microscopes and optics
Topic: Leica DM IL (searching for correct set up info)
Replies: 8
Views: 878

Re: Leica DM IL (searching for correct set up info)

Taking Nikon's Diaphot inverted microscope which uses 160mm objectives, the stage is raised and lowered for focus. If the objective turret moves, that must mean the microscope is inifinity focus, others the distance to the camera changes, so the focus is wrong. So is this Leica DM IL an infinity foc...
by microb
Thu Nov 14, 2019 7:14 am
Forum: Microscopes and optics
Topic: Leica DM IL (searching for correct set up info)
Replies: 8
Views: 878

Re: Leica DM IL (searching for correct set up info)

So the Leica DM IL 001 version, has two lenses to extend the 160mm TL path. I still don't know how an inverted moving objective turret for focusing, works with a non-infinity focus objective. I thought the magnification would change slightly while focusing. So the green lines show the light path thr...
by microb
Thu Nov 14, 2019 7:10 am
Forum: Microscopes and optics
Topic: Leica DM IL
Replies: 1
Views: 431

Re: Leica DM IL

So here it is working again, waiting to be pressed back against the outside of the light fixed chassis so it stays together. Why do it that way?
by microb
Thu Nov 14, 2019 7:09 am
Forum: Microscopes and optics
Topic: Leica DM IL
Replies: 1
Views: 431

Leica DM IL

So I wasn't expecting a Leica microscope light condenser setup to not have something to contain the other side of the iris blades. It turns out when you take off the lens, the four screws also presses the blades against the chassis to hold it all together. Ooops. It's hard to put one of these togeth...
by microb
Tue Nov 12, 2019 4:30 am
Forum: Microscopes and optics
Topic: Leica DM IL (searching for correct set up info)
Replies: 8
Views: 878

Leica DM IL (searching for correct set up info)

Hi, I have a Leica DM IL (black print on the sides, no red decorations) and only an overhead light, type 090.131.001. Basically no lower lamp and no dichroic mirror in the base. The binocular head is the "Made by Leitz Portugal 512 821/20" with the eyepieces being Leitz PERIPLAN GF 10x/20 M. If that...
by microb
Fri Oct 25, 2019 11:49 am
Forum: Microscopes and optics
Topic: Olympus Objectives That Need NFK Relay Lens Correction
Replies: 4
Views: 849

Re: Olympus Objectives That Need NFK Relay Lens Correction

Thanks PeteM. That helps narrow answer my concern.
by microb
Thu Oct 24, 2019 8:33 pm
Forum: Microscopes and optics
Topic: Olympus Objectives That Need NFK Relay Lens Correction
Replies: 4
Views: 849

Olympus Objectives That Need NFK Relay Lens Correction

Olympus objectives now do not require any relay lens for fixing aberrations, like NFK X.X lens in the U-SPT tube. So Olympus has discontinued the U-SPT for BX/IX microscopes.

So what series identifiers indicate that a NFK relay lens should be there?

Thanks.
by microb
Wed Oct 23, 2019 6:26 pm
Forum: Microscopy accessories
Topic: Zero Working Distance Objective?
Replies: 5
Views: 1156

Re: Zero Working Distance Objective?

Isn't this traditionally done with an overhead water dipping objective?

https://www.thorlabs.com/newgrouppage9. ... n=N20X-PFH
by microb
Fri Oct 18, 2019 3:56 am
Forum: For forum members who want to buy and sell equipment
Topic: NO LONGER WANTED - Olympus nosepiece adapter
Replies: 9
Views: 1939

Re: NO LONGER WANTED - Olympus nosepiece adapter

Cool.

Can you send pictures of how the set screw was done. They seemed to have put in some type of brooch that would be interesting to see.
by microb
Mon Oct 07, 2019 3:44 pm
Forum: Microscopes and optics
Topic: Axioplan 2 Field Stop Position
Replies: 1
Views: 657

Re: Axioplan 2 Field Stop Position

So someone is offering to sell one. Hopefully that deal works out.