Search found 340 matches
- Fri May 10, 2024 3:29 am
- Forum: Pictures and Videos
- Topic: Stentor coeruleus
- Replies: 6
- Views: 142
Re: Stentor coeruleus
Very nicely done! Great callout labels!
- Sun May 05, 2024 3:57 am
- Forum: Microscopes and optics
- Topic: Considering making an inf. frankenscope, would like epi options, have some objectives, thoughts?
- Replies: 10
- Views: 772
- Sat May 04, 2024 9:17 pm
- Forum: Microscopes and optics
- Topic: Considering making an inf. frankenscope, would like epi options, have some objectives, thoughts?
- Replies: 10
- Views: 772
Re: Considering making an inf. frankenscope, would like epi options, have some objectives, thoughts?
I have a damaged U-TR30 trinoc head for BX scopes. It's what remains after I made one good head from two damaged ones. The top dovetail connector is missing and would need to be 3D printed. The bottom dovetail is broken from where it was knocked off a microscope. It's missing about a 3cm chunk of th...
- Sat Mar 30, 2024 2:56 am
- Forum: Microscopes and optics
- Topic: Olympus IMT-2 mystery
- Replies: 17
- Views: 2948
Re: Olympus IMT-2 mystery
I had an IMT-2 with a 100w power supply and lamp house as well. I ended up selling it off, but they do exist. I don't think I've ever seen it in a manual. My manual only lists the 50w P/S and standard lamp house. It even says not to use a 100w bulb or the power supply may be damaged, but that's with...
- Tue Feb 27, 2024 7:06 pm
- Forum: Microscopes and optics
- Topic: Olympus BH2 versus BX series..how does one decide?
- Replies: 6
- Views: 1126
Re: Olympus BH2 versus BX series..how does one decide?
What PeteM said. In addition, the BX series is much more substantial size-wise than the BH-2, more along the lines of a slightly larger BHS. They are however, narrower in the front so your arms have more room on the bench. The BX-40s have 30 watt lamps where the BH-2s have 20 watts. Both the BHS and...
- Wed Feb 07, 2024 3:49 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: WTB: Olympus BH2-AN Analyser for DIC
- Replies: 21
- Views: 3016
Re: WTB: Olympus BH2-AN Analyser for DIC
The shaft is bent a little. If you look at the video you'll see it work as it should. And they open up just fine. Use a JIS screw driver though so you don't damage the screws. I opened one up I had bought last year to replace a clip that was missing on the end of that shaft. I don't remember how dif...
- Wed Feb 07, 2024 3:15 am
- Forum: For forum members who want to buy and sell equipment
- Topic: WTB: Olympus BH2-AN Analyser for DIC
- Replies: 21
- Views: 3016
Re: WTB: Olympus BH2-AN Analyser for DIC
This just came up. A bit pricy, but given how rare they are...
https://www.ebay.com/itm/186288985596
https://www.ebay.com/itm/186288985596
- Sat Feb 03, 2024 1:58 am
- Forum: My microscope
- Topic: AO 160
- Replies: 10
- Views: 3012
Re: AO 160
That floating/grease/glide stage (the real name I think) is wonderful. I didn't know they existed until I found them on some AO Sixties I bought to rehab for a school. They make life a lot easier for students (and the rest of us) to move the slide by grabbing something other than just the slide. Mov...
- Fri Feb 02, 2024 3:46 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Laminar flow equipment
- Replies: 4
- Views: 1490
Re: Laminar flow equipment
Make sure you're sterile technique is up to speed. Tissue culture is pretty unforgiving when it comes to viral or bacterial contamination.
- Wed Jan 24, 2024 2:54 am
- Forum: Beginner's corner
- Topic: Plastic cover slips?
- Replies: 6
- Views: 1921
Re: Plastic cover slips?
Uh, NO! :shock: :shock: :shock: Do you use plastic lensed objectives? :cry: Or eyepieces? :cry: Why spend good money for nice objectives then stick cheap plastic between them and the specimen? :o :o Plastic coverslips are made for schools where the kids don't yet have the dexterity to use glass cove...
- Sat Jan 20, 2024 8:02 pm
- Forum: Microscopy accessories
- Topic: Mystery Nikon Magnifier
- Replies: 8
- Views: 2087
Re: Mystery Nikon Magnifier
I have one of the Olympus ones (U-FT) I use for aligning BH-2s, but I think their original use was as a focusing aid for the film camera modules.
- Sat Jan 20, 2024 3:39 am
- Forum: Microscopes and optics
- Topic: How can I clean a concave lens?
- Replies: 5
- Views: 910
Re: How can I clean a concave lens?
I second what apo said. I've cleaned lots of objectives that way. Perfectly safe as long as you do it gently.
- Thu Dec 21, 2023 1:54 am
- Forum: Beginner's corner
- Topic: Best size objective for Pond life?
- Replies: 36
- Views: 58362
Re: Best size objective for Pond life?
I agree that a 20x is highly valuable for pond life. I consider it a must have, and generally more useful and less trouble than a 100x oil. I have a 20x on every microscope I own that isn't an antique display scope. All of my outreach scopes have them as well. I even have mag changers on my BX serie...
- Sat Nov 11, 2023 2:18 am
- Forum: Camera systems and imaging
- Topic: Does anyone know the backfocal distance of the Swift M10T microscope?
- Replies: 5
- Views: 2015
Re: Does anyone know the backfocal distance of the Swift M10T microscope?
I actually didn't mean anything. It was just the first item in a quick Google search...
- Fri Nov 10, 2023 11:22 pm
- Forum: Camera systems and imaging
- Topic: Does anyone know the backfocal distance of the Swift M10T microscope?
- Replies: 5
- Views: 2015
- Fri Nov 10, 2023 11:20 pm
- Forum: Camera systems and imaging
- Topic: Magnification of the NFK eyepiece in the Olympus BH-2 system
- Replies: 15
- Views: 5021
Re: Magnification of the NFK eyepiece in the Olympus BH-2 system
My main problems are chromatic aberration and depth of field. I'm very far from seeing the round image because cropping is like 80%... If you want a round image, you will need to shoot through the eyepiece afocally. That's what it's called when you shoot through the eyepiece like you look through i...
- Fri Nov 10, 2023 3:55 am
- Forum: Illumination Techniques
- Topic: Polarization analyzer being used without polarization on the condenser, what would happen?
- Replies: 8
- Views: 2361
Re: Polarization analyzer being used without polarization on the condenser, what would happen?
I used to work in a clinical lab where the urinalysis microscope, a Nikon Labophot 2, had an analyzer mounted at the base of the binocular head. That meant that all we had to do to check crystals for birefringence was to put the polarizer over the light output port. It worked pretty well and was bar...
- Tue Nov 07, 2023 3:58 pm
- Forum: Camera systems and imaging
- Topic: Magnification of the NFK eyepiece in the Olympus BH-2 system
- Replies: 15
- Views: 5021
Re: Magnification of the NFK eyepiece in the Olympus BH-2 system
The U-PMTVC is actually for the BX series, but does a nice stand-in for the BH-2 Series MTV-3. The U-PMTVC has an adjustment for parfocality and the MTV-3 does not. The both have the 0.3x reduction lens as they were designed for C-mount cameras. I use the U-PMTVC and a 3.3x NFK projection lens for m...
- Sat Nov 04, 2023 10:59 pm
- Forum: Microscopes and optics
- Topic: Is a 2x objective worth having?
- Replies: 11
- Views: 5600
Re: Is a 2x objective having?
What are you looking at? A 2x is is a scanning lens generally, and often in tissue pathology. I would much prefer a 20x, particularly with protozoa and the like.
- Mon Oct 30, 2023 10:04 pm
- Forum: Camera systems and imaging
- Topic: Budget camera options for Olympus BX40 - please help
- Replies: 9
- Views: 4220
Re: Budget camera options for Olympus BX40 - please help
The iPhone, or other cell phone, will be fine: http://www.microscopy-uk.org.uk/mag/artapr16/tj-cell-phone-photomicro.pdf The maximum resolution you'll get out of dried, wright's stained, blood films will be less than the microscope is capable of, and probably less than you camera is capable of as we...
- Sat Oct 28, 2023 10:55 pm
- Forum: Microscopes and optics
- Topic: Why a 50x OIL objective?
- Replies: 4
- Views: 1322
Re: Why a 50x OIL objective?
Hematology. Also gram stains in clinical microbiology. And higher N.A. Going from 40x dry to 100x and back, you will likely cover the tip of the 40x with oil necessitating cleaning before further use. With a 40x oil, or more commonly 50x oil, you can go back and forth while doing a diff without gett...
- Thu Oct 26, 2023 6:16 am
- Forum: Illumination Techniques
- Topic: Phase eyepiece/telescope
- Replies: 15
- Views: 3797
Re: Phase eyepiece/telescope
A centering/phase telescope. You can do a reasonable job without one, just by looking down the eyepiece tube, but the centering/phase telescope makes it much easier and much more accurate. I thought they were important enough I bought three to go with three surplus Zeiss Standard 14 phase scopes I r...
- Sat Oct 14, 2023 2:45 pm
- Forum: Illumination Techniques
- Topic: Interchangeable DIC prisms (shear values for different manufacturers)
- Replies: 11
- Views: 7320
Re: Interchangeable DIC prisms (shear values for different manufacturers)
Good luck finding the shear values. I've only seen a few for the UIS Olympus objectives, and those had been determined by the researchers who wrote the book. Those tend to be rather jealously guarded secrets. Edit - the post above lists the only ones I've ever seen. And those are not from the manufa...
- Fri Oct 13, 2023 3:23 pm
- Forum: Camera systems and imaging
- Topic: Quick adaptor advice- Olympus EHT trinocular + Canon 1000D parfocality adaptors?
- Replies: 10
- Views: 3867
Re: Quick adaptor advice- Olympus EHT trinocular + Canon 1000D parfocality adaptors?
Was this you?https://www.microscopy-uk.org.uk/mag/ar ... omicro.pdf Yes, that's the article I wrote. Looking a bit farther, it seems your 1000D doesn't have HDMI output, only USB, so you'll need a computer connection. And that resolution is 768x512 pixels, so the 4K I mentioned is only useful when ...
- Fri Oct 13, 2023 3:37 am
- Forum: Camera systems and imaging
- Topic: Quick adaptor advice- Olympus EHT trinocular + Canon 1000D parfocality adaptors?
- Replies: 10
- Views: 3867
Re: Quick adaptor advice- Olympus EHT trinocular + Canon 1000D parfocality adaptors?
Actually, there is no way to get an identical field of view between the camera and the eyepieces. The eyepiece view is round, and the outer edges, probably about a third, of the image are generally not quite as nice as the center two thirds. That's why cameras usually crop the image in from the edge...
- Tue Sep 26, 2023 2:59 pm
- Forum: Beginner's corner
- Topic: Unable to clean residue from objective lens
- Replies: 11
- Views: 2864
Re: Unable to clean residue from objective lens
Dish soap I use roughly 2 drops/50ml of water.
- Tue Sep 26, 2023 4:19 am
- Forum: Beginner's corner
- Topic: Unable to clean residue from objective lens
- Replies: 11
- Views: 2864
Re: Unable to clean residue from objective lens
Try a drop or two of dish detergent in 50ml or so of water. If the residue on the objective is organic, like a body fluid if it was used clinically, that should take it off nicely when the alcohol won't. If that fails I've used acetone, just don't flood it or leave it on very long to prevent damage ...
- Mon Sep 18, 2023 7:27 pm
- Forum: Microscopes and optics
- Topic: Freeing Slideways that are frozen.
- Replies: 9
- Views: 3074
Re: Freeing Slideways that are frozen.
I'm with PeteM. Heat it up. I've freed up a lot of parts of microscopes from slide holders to eyepiece threads, focus dove tails, gears, bearings and the like. Adding heat helps penetrating oil loosen the rock hard grease and can actually melt the grease. The grease gets so hard penetrating oil by i...
- Mon Sep 18, 2023 7:19 pm
- Forum: Microscopes and optics
- Topic: Olympus BH2 Trinocular head damaged
- Replies: 3
- Views: 976
Re: Olympus BH2 Trinocular head damaged
If it was listed as used, send it back as with a crack it's not fully functional and "as described". The light path selection slider controls the distribution of light between the eyepieces and the camera head. The prisms that move with the slider position are what directs the proper amount of ligh...
- Sat Sep 16, 2023 2:25 am
- Forum: Specimens, samples and slides
- Topic: Practical applications
- Replies: 8
- Views: 2820
Re: Practical applications
Hospital labs for 40 years. :ugeek: Hemocytometer blood cell counts, platelet counts. Stained WBC differentials including malignant cell ID, Body fluid hemocytometer cell counts and differentials including malignant cell ID using stained slides. Blood bank to identify clumping in crossmatch or antib...