Search found 307 matches

by microb
Sat Jul 04, 2020 7:02 am
Forum: Microscopy accessories
Topic: B&L Phase Contrast Condenser Sliders
Replies: 7
Views: 398

Re: B&L Phase Contrast Condenser Sliders

apochronaut wrote:
Fri Jul 03, 2020 10:19 pm
I'll do some checking on Sunday or Monday for you.Thurs through Sat. are always committed tmes for me and except for occasional glances, I'm not really able to do much in the way of hands on assesment or quality referencing for the forum.
Awesome. Thanks.
by microb
Fri Jul 03, 2020 2:42 pm
Forum: Microscopy accessories
Topic: B&L Phase Contrast Condenser Sliders
Replies: 7
Views: 398

Re: B&L Phase Contrast Condenser Sliders

I'm trying to expand out from the citations and references sections:

https://patents.google.com/patent/US2565419A/en
by microb
Fri Jul 03, 2020 2:26 pm
Forum: Microscopy accessories
Topic: B&L Phase Contrast Condenser Sliders
Replies: 7
Views: 398

Re: B&L Phase Contrast Condenser Sliders

Those insert annuli are for the L.W.D. phase system. It does use the standard phase objectives, so it is probably only medium working distance. I have the Balplan phase system in it's entirety. It is a good system. I am not sure what other condenser would duplicate the focal point of that phase con...
by microb
Fri Jul 03, 2020 5:49 am
Forum: Microscopy accessories
Topic: B&L Phase Contrast Condenser Sliders
Replies: 7
Views: 398

Re: B&L Phase Contrast Condenser Sliders

Anyone have a 31-55-32 or 31-55-31?

What NA condenser could I use in its place if I could get the phase contrast annuli installed?
by microb
Fri Jul 03, 2020 3:38 am
Forum: Microscopy accessories
Topic: B&L Phase Contrast Condenser Sliders
Replies: 7
Views: 398

B&L Phase Contrast Condenser Sliders

So how does this fit or what condenser is needed?

Thanks.
by microb
Fri Jul 03, 2020 2:53 am
Forum: Microscopes and optics
Topic: B&L Balplan
Replies: 27
Views: 848

Re: B&L Balplan

apochronaut wrote:
Fri Jul 03, 2020 2:51 am
Your quintuple has the nosepiece reversing collar and your quadruple does not. You can swap them already by using the quadruple in the forward position.. Are you thst attsched to the reverse nosepiece?
I didn't think of that. Maybe I can just leave that set screw in there.

Thanks,
Ted
by microb
Fri Jul 03, 2020 2:23 am
Forum: Microscopes and optics
Topic: B&L Balplan
Replies: 27
Views: 848

Re: B&L Balplan

So I would like to swap out the 5 turret for the 4, but there is a bad grub screw.

What's the best way to remove it? Should I Dremmel in the center and then chip it out?
by microb
Thu Jul 02, 2020 8:37 pm
Forum: Microscopes and optics
Topic: B&L Balplan
Replies: 27
Views: 848

Re: B&K Balplan

When we all figure this out, where can we post a summary page that people can look up and know what a valid assembly looks like?
by microb
Thu Jul 02, 2020 8:34 pm
Forum: Microscopes and optics
Topic: Leica DM
Replies: 14
Views: 529

Re: Leica DM

Thankyou for the suggestions. I probably don't want to alter the dovetail socket, since the existing head is good. One of the ideas for the male dovetail will work. However, the picture of the head you measured microb, doesn't quite fit with what I am looking at. Different part # too. If it does tu...
by microb
Thu Jul 02, 2020 8:33 pm
Forum: Microscopes and optics
Topic: Leica DM
Replies: 14
Views: 529

Re: Leica DM

No problem. Do have a question - though on the head. Are you sure it's a Leica DM IL with the calipers measuring it? See my note above - no idea what size a Leica DM IL is, but could be the one you measured is an older Leitz? So here are links to posts about the DM IL that I have. Before the LED mo...
by microb
Thu Jul 02, 2020 7:15 am
Forum: Microscopes and optics
Topic: Leica DM
Replies: 14
Views: 529

Re: Leica DM

The wire suggestion should work - anything with the needed diameter to center. If I read this right, Phil, you need to enlarge the dovetail about 2mm all around? If so, could be 12 gauge wire would be about right? 20 amps building wire (Romex as suggested by microb) is typically 12 gauge. But note ...
by microb
Thu Jul 02, 2020 2:45 am
Forum: Microscopes and optics
Topic: Leica DM
Replies: 14
Views: 529

Re: Leica DM

I want to put a DM trinocular on it. It has a 25mm telan lens in the head, with a 44mm dovetail but the general shape and dimensions of the original binocular are quite similar to the DM head. The difference is 1mm on each side. Does anybody have good ideas , how best to add the 2mm? My first thoug...
by microb
Wed Jul 01, 2020 10:35 pm
Forum: Microscopes and optics
Topic: Breaking the baffling B & L Balplan buffalo.
Replies: 74
Views: 4940

Re: Breaking the baffling B & L Balplan buffalo.

The large opening is 25.45mm, the smaller is 21.68mm. The support lips are 0.54mm thick. The IDs are both 19.27mm (inner edge of the lips). The linear pol filter OD from Edmund (#54-926, $37.00) is 24.86mm (nominally 25mm). It's not their best filter, but adequate. Awesome. Thanks. I'd be intereste...
by microb
Wed Jul 01, 2020 8:31 pm
Forum: Microscopes and optics
Topic: Leica DM
Replies: 14
Views: 529

Re: Leica DM

apochronaut wrote:
Wed Jul 01, 2020 7:49 pm
Anyone know the large diameter of the head dovetail on a Leica DM IL?
by microb
Wed Jul 01, 2020 4:49 am
Forum: Microscopy accessories
Topic: B&L Balplan Pol Adapter
Replies: 12
Views: 317

Re: B&L Balplan Pol Adapter

The tube on the left is the more modern one, and is shown with an adapter sleeve for who-knows-what. The more modern tube's small black end is loose in the Balplan trino head, so obviously is missing a sleeve similar to the one shown, but made to mate with the trino port. Yet another project. So is...
by microb
Wed Jul 01, 2020 12:35 am
Forum: Microscopes and optics
Topic: Breaking the baffling B & L Balplan buffalo.
Replies: 74
Views: 4940

Re: Breaking the baffling B & L Balplan buffalo.

The slide is 7.07mm thick aluminum, 117.3mm long, and 31.66mm wide. There are detents on one edge 26.86mm and 55.42mm from one end, which correspond to the centers of the openings. The ends are tapered, just for ease of inserting into the cavity. Thanks. If you have more measurements on the optics ...
by microb
Tue Jun 30, 2020 9:59 pm
Forum: Microscopes and optics
Topic: Breaking the baffling B & L Balplan buffalo.
Replies: 74
Views: 4940

Re: Breaking the baffling B & L Balplan buffalo.

Yes, I have an analyzer slide, 31-57-86, that fits inside the holder-adapter 31-57-92. I got the slide on ebay somewhere, and it came with the pol filter missing (inner opening) but having the clear glass present in the outer opening. I got a replacement pol filter from Edmund (25mm) which drops in...
by microb
Tue Jun 30, 2020 7:00 pm
Forum: Microscopy accessories
Topic: B&L Balplan Pol Adapter
Replies: 12
Views: 317

Re: B&L Balplan Pol Adapter

Bill's image capture system is above the telan lens, which is inside the Balplan head. The fact that he did not use a camera relay lens is normal because the Balplan has fully corrected optics by the time the eyepieces pick up the image, or in his case the sensor. Thanks! So the head does have a le...
by microb
Tue Jun 30, 2020 6:48 pm
Forum: Microscopes and optics
Topic: B&L Balplan
Replies: 27
Views: 848

Re: B&K Balplan

wporter wrote:
Tue Jun 30, 2020 4:32 pm
No. They are Planachromat, BF/DF Met.

I'll upload pix later of the epi lenses.
Oh. Ok. Now I'm seeing some info now knowing that. Thanks.
by microb
Tue Jun 30, 2020 3:05 pm
Forum: Microscopy accessories
Topic: B&L Balplan Pol Adapter
Replies: 12
Views: 317

Re: B&L Balplan Pol Adapter

No. See the snswer in the active Balplan thread.......I came to this post after. Sorry for all the links below, but I'm trying to summarize and figure out where the focusing is being done. So is it true that if an epi were installed, the same objectives would work? These objectives do not actually ...
by microb
Tue Jun 30, 2020 2:45 pm
Forum: Microscopes and optics
Topic: B&L Balplan
Replies: 27
Views: 848

Re: B&K Balplan

Here are some pix of the Balplan epi illuminator and DIC attachment. Also shown is the camera adapter (with a cable release hanging off it; the shutter inside hasn't been removed, so needs to be opened manually when a digital camera is used on top of the adapter.balplan1-1024x1024.jpgbalplan2-1024x...
by microb
Tue Jun 30, 2020 7:30 am
Forum: Microscopes and optics
Topic: Breaking the baffling B & L Balplan buffalo.
Replies: 74
Views: 4940

Re: Breaking the baffling B & L Balplan buffalo.

Yes, I know they were made in Rochester but for many years I, and I'm sure I'm not the only one, have been truly buffaloed by their objectives. They don't work in any other microscope nor do other microscope objectives work in a Balplan. This isn't too much of a hardship, because in a number of com...
by microb
Tue Jun 30, 2020 7:14 am
Forum: Microscopy accessories
Topic: B&L Balplan Pol Adapter
Replies: 12
Views: 317

B&L Balplan Pol Adapter

Hi,

I got one of these 15mm tall pol adapters that fit (in a Blaplan catalog) right under the head.

But there are no optics like the DIC adapter has. So doesn't this extra distance mess things up since this is not an infinity system with a lens tube in the head.

Thanks,
Ted
by microb
Mon Jun 29, 2020 6:14 am
Forum: Microscopy accessories
Topic: millimicrons
Replies: 1
Views: 119

millimicrons

So I guess nanometers is a newer term?
by microb
Sun Jun 28, 2020 8:12 pm
Forum: For forum members who want to buy and sell equipment
Topic: Half-mirror
Replies: 8
Views: 301

Re: Half-mirror

What is better - cube or half mirror ? https://www.youtube.com/watch?v=zaUJDRaCBiI Edmund Optics says the cube should only be used with culminated light paths. A mirror has a ghost image but less chromatic aberrations than a cube. The cube tends to have less spectrum range. Given that everyone uses...
by microb
Sun Jun 28, 2020 7:12 pm
Forum: Microscopy accessories
Topic: Zeiss Axioplan 2 Iris Slider
Replies: 1
Views: 77

Re: Zeiss Axioplan 2 Iris Slider

Photon S software stick in some weird auto-supports. I'm tending to just do my own most times.
by microb
Sun Jun 28, 2020 7:12 pm
Forum: Microscopy accessories
Topic: Zeiss Axioplan 2 Iris Slider
Replies: 1
Views: 77

Zeiss Axioplan 2 Iris Slider

This is the largest resin print yet. Fineally getting back to working on a Zeiss AxioPlan2 iris slider.
by microb
Sun Jun 28, 2020 4:10 am
Forum: For forum members who want to buy and sell equipment
Topic: Olympus BH2 Teaching Bridge set for quick sale
Replies: 5
Views: 1329

Re: Olympus BH2 Teaching Bridge set for quick sale

I thought PE was for the BX series, basically the non-Neo objectives typically used with BH2. Also is a NFK (or I guess a PE) needed with a set up like this, which seems like it would match the L tube mentioned above -- there is a version on ebay for the Olympus connector. The following is for a Can...
by microb
Sat Jun 27, 2020 7:21 am
Forum: Illumination Techniques
Topic: Epi DIC woes
Replies: 44
Views: 1862

Re: Epi DIC woes

Scarodactyl wrote:
Sat Jun 27, 2020 5:22 am

At this point I can't think of anything other than my prisms being bad, but they look fine and it seems to have affected all three almost equally.
Have you tried turn the objectives a bit in place to see if adding distance might improve the image?
by microb
Sat Jun 27, 2020 4:43 am
Forum: Microscopes and optics
Topic: Best DIC options?
Replies: 57
Views: 1311

Re: Best DIC options?

PeteM wrote:
Sat Jun 27, 2020 4:25 am
One thought is that a wafer (what I just checked) has small height differences, while your specimen has larger differences. Maybe that makes the difference in getting a ghost image?
The images I posted were from a wafer.