Search found 337 matches
- Fri Feb 10, 2023 5:31 pm
- Forum: Camera systems and imaging
- Topic: Problem mounting Canon EOS R10 on Olympus BH2 BHS
- Replies: 2
- Views: 1510
Re: Problem mounting Canon EOS R10 on Olympus BH2 BHS
Of course it's solvable using the trinocular head. The Canon EOS Utility 3 is not listed on the Canon website as being compatible with the R10. It looks like EOS Utility 3.16.0 is the newest compatible version. Canon support should have known that. There's a newer version of PDP 4 as well. The R10 u...
- Thu Feb 02, 2023 2:53 am
- Forum: Microscopes and optics
- Topic: Olympus BX40 stage?
- Replies: 2
- Views: 820
Re: Olympus BX40 stage?
No. The BX-40 stage mount is larger, so the BH-2 stage won't fit.
- Wed Feb 01, 2023 2:30 pm
- Forum: Camera systems and imaging
- Topic: New Nikon 9K 60MP Full-Frame Microscope Camera
- Replies: 0
- Views: 1708
- Thu Jan 19, 2023 7:21 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: WTB Olympus BH2 DIC Set
- Replies: 72
- Views: 22071
Re: WTB Olympus BH2 DIC/NIC
What is your budget for a BH-2 DIC set?
- Sat Jan 14, 2023 3:20 pm
- Forum: Collecting microscopes and slides
- Topic: Klaus Kemp slides
- Replies: 6
- Views: 2902
Re: Klaus Kemp slides
Yeah, I bid a ridiculous amount for the Christmas Tree slide - I think I have all of the others - but it went way past what I thought was remotely possible. Good thing the money went to Klaus' wife!
- Wed Jan 11, 2023 4:43 am
- Forum: Specimens, samples and slides
- Topic: Help - Making a permanent blood smear slide
- Replies: 7
- Views: 2285
Re: Help - Making a permanent blood smear slide
It's easy. The mountant really isn't important as long as it lasts. I've had to re-coverslip slides I made in the 70's because the mountant dried up and pulled back from the edges of the coverslip. More modern versions work better and last a very long time. You can use Canada Balsam, Permount, Eupar...
- Tue Jan 10, 2023 2:56 am
- Forum: Beginner's corner
- Topic: Hemacytometer Cover Glass
- Replies: 19
- Views: 3920
Re: Hemacytometer Cover Glass
The hand-held pipette bulbs are good for larger volumes, but nothing this small and requiring this much control. The blood dilution pipettes use really small volumes of blood and diluent. I've never seen anyone use a bulb or syringe with one of these pipettes. It would be really difficult to do when...
- Mon Jan 09, 2023 7:27 pm
- Forum: Beginner's corner
- Topic: Hemacytometer Cover Glass
- Replies: 19
- Views: 3920
Re: Hemacytometer Cover Glass
GerryR wrote An article I read on a medical site (?) stated there are large variances between techs performing the same counts using the same samples and Hemacytometer, I'm guessing due to technique. So, that would tell me that certain results would warrant further testing with, perhaps, different m...
- Sun Jan 08, 2023 3:54 am
- Forum: Collecting microscopes and slides
- Topic: I would like some prepared slides.
- Replies: 10
- Views: 4045
Re: I would like some prepared slides.
Triarch are nice, US made teaching slides that are still being made. Generally hard to beat for quality and range of subjects. Pretty pricey new though: https://www.triarchincorporated.com/
- Sun Jan 08, 2023 3:48 am
- Forum: Pictures and Videos
- Topic: Marine Benthic Foraminifera
- Replies: 1
- Views: 466
- Sun Jan 08, 2023 3:44 am
- Forum: Beginner's corner
- Topic: Hemacytometer Cover Glass
- Replies: 19
- Views: 3920
Re: Hemacytometer Cover Glass
The CV's of manual chamber counts are pretty high. There is a lot of variability in any manual process. Consistent mixing of the particles/cells in the liquid, consistent sampling technique, consistent loading volume, accurate dilution, are you counting a single type of particle or cell or are you t...
- Wed Jan 04, 2023 4:21 pm
- Forum: Identification help
- Topic: Unknown Annelid
- Replies: 3
- Views: 951
Re: Unknown Annelid
Looks like Dero digitata.
- Sat Dec 31, 2022 3:44 pm
- Forum: Pictures and Videos
- Topic: Carnivorous rotifer: Aspelta circinator
- Replies: 7
- Views: 1129
- Thu Dec 22, 2022 11:07 pm
- Forum: Microscopes and optics
- Topic: Olympus BX41 and Olympus BX50 parts compatibility
- Replies: 6
- Views: 1045
Re: Olympus BX41 and Olympus BX50 parts compatibility
Yep. Missing binocs mean it will have to be collimated, if you can find a set. Collimation isn't easy. I missed that!
- Thu Dec 22, 2022 5:47 pm
- Forum: Microscopes and optics
- Topic: Olympus BX41 and Olympus BX50 parts compatibility
- Replies: 6
- Views: 1045
Re: Olympus BX41 and Olympus BX50 parts compatibility
It's not so much a matter of buying cheaper parts, it's current parts. Also, when new versions come out they usually quit manufacturing the older version, even if it's compatible. The few available are old, unsold stock. Try to buy stage racks for a BX-50 from Olympus and you'll see what I mean. Rem...
- Thu Dec 22, 2022 4:15 pm
- Forum: Microscopes and optics
- Topic: Olympus BX41 and Olympus BX50 parts compatibility
- Replies: 6
- Views: 1045
Re: Olympus BX41 and Olympus BX50 parts compatibility
I just noticed a big problem in the head of the 41. The light path control rod is broken off. :shock: The rod is attached to the prism assembly by a very fine (read fragile) screw thread at the prism end. Obviously this one got banged against something once and broke it off. You can't tell by lookin...
- Thu Dec 22, 2022 4:04 pm
- Forum: Microscopes and optics
- Topic: Olympus BX41 and Olympus BX50 parts compatibility
- Replies: 6
- Views: 1045
Re: Olympus BX41 and Olympus BX50 parts compatibility
Remember, when the documentation for the BX-50 was written, the U-PCD2 didn't exist, so it's pretty hard to reference a non-existent part. The U-PCD2 is compatible with the BX-50, as are almost all of the other BX series accessories. The stage and condenser mounts are the same and the dovetails are ...
- Tue Dec 13, 2022 5:09 pm
- Forum: Identification help
- Topic: Research?
- Replies: 9
- Views: 2710
Re: Research?
Lets see.. Before you get started, here's really nice video by Peter Evennett explaining how your microscope really works. Watch it. Seems a bit droll in the beginning, but I guarantee you'll learn something: https://www.youtube.com/watch?v=60_jgZtyR6U Now on to the research... From the Foissner lis...
- Mon Dec 12, 2022 4:00 pm
- Forum: Resources (online, books etc.)
- Topic: Book- The Sphagnum Ponds of Simmelried in Germany
- Replies: 6
- Views: 3498
Re: Book- The Sphagnum Ponds of Simmelried in Germany
Excellent book. I originally read the pdf as that's what came out first. I jumped at the chance to but the hard cover when it came out. Very well done!
- Sun Nov 27, 2022 12:33 am
- Forum: Beginner's corner
- Topic: Olympus BH2 camera suggestions given my parts/equipment
- Replies: 4
- Views: 1617
Re: Olympus BH2 camera suggestions given my parts/equipment
The U-PMTVC is a direct swap for the BH-2 version MTV-3 and works even better as it has the ability to parfocalize. The easy way is something like a Panasonic GH4, or other M4/3 camera, an NFK 3.3x (which with the 0.3x U-PMTVC3 give essentially direct projection with the eyepiece corrections needed)...
- Sat Nov 26, 2022 9:54 pm
- Forum: Beginner's corner
- Topic: Cleaning lenses
- Replies: 14
- Views: 3094
Re: Cleaning lenses
Use a reversed 10x wide field objective as a magnifier to check the lens condition prior to and during cleaning. Just Look at light reflections off of the surface of the objective lens to see any contamination or remaining film. 70% to 90% isopropanol and good cotton swabs work fine. I actually use ...
- Sat Nov 26, 2022 5:25 pm
- Forum: Beginner's corner
- Topic: Bought an Olympus BH2 w/ a polarizing attachment.. I think I’m missing a piece
- Replies: 7
- Views: 1632
Re: Bought an Olympus BH2 w/ a polarizing attachment.. I think I’m missing a piece
I think he only has one, the upper analyzer.
- Sat Nov 26, 2022 3:09 am
- Forum: Beginner's corner
- Topic: Bought an Olympus BH2 w/ a polarizing attachment.. I think I’m missing a piece
- Replies: 7
- Views: 1632
Re: Bought an Olympus BH2 w/ a polarizing attachment.. I think I’m missing a piece
You need a polarizer above the lamp as you suspected. The U-POT is fine, and what it was designed to use, but they're relatively expensive and a bit hard to find. Get yourself a 45mm linear (not circular) photography polarizer. Anything sized to fit the light port or larger (even a little smaller) w...
- Wed Nov 02, 2022 2:21 am
- Forum: For forum members who want to buy and sell equipment
- Topic: WTB Olympus BH2 DIC Set
- Replies: 72
- Views: 22071
Re: WTB Olympus BH2 DIC/NIC
I'm about to turn 74. :shock: And I used microscopes professionally, with patient lives dependent upon the results, for over 40 years. Now I do things like this for fun: https://www.nikonsmallworld.com/galleries/2018-small-world-in-motion-competition/stephanoceros-fimbriatus-rotifer-feeding And this...
- Tue Nov 01, 2022 8:31 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: WTB Olympus BH2 DIC Set
- Replies: 72
- Views: 22071
Re: WTB Olympus BH2 DIC/NIC
woyjwjl, First, I was referring to centering the phase annuli with a CT, not DIC. And you'll notice "need" is in quotes. Second, you don't need the CT to see the interference fringes either. Just pull the eyepiece and look down the tube. You can do the same thing with the phase annuli, it's just a l...
- Mon Oct 31, 2022 4:34 am
- Forum: For forum members who want to buy and sell equipment
- Topic: WTB Olympus BH2 DIC Set
- Replies: 72
- Views: 22071
Re: WTB Olympus BH2 DIC/NIC
@tom jones but if I want to do BF with the BH2-UCD won’t I be hindered by the NA 0.9? Why is it so much lower than even the standard 1.25 abbe condenser. No. Oil. Everything in microscopy is a tradeoff. You give a little one place to get a little somewhere else. You only need enough resolution to a...
- Sun Oct 30, 2022 4:14 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: WTB Olympus BH2 DIC Set
- Replies: 72
- Views: 22071
Re: WTB Olympus BH2 DIC/NIC
Better is probably a bit subjective and depends on what your ultimate goals are. If you want to do phase, the Phase/NIC condenser has you covered, as it has phase annuli as well as the DIC prisms permanently mounted. But you need phase objectives, and these are not optimal for DIC. So, two sets of o...
- Sat Oct 29, 2022 11:15 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: WTB Olympus BH2 DIC Set
- Replies: 72
- Views: 22071
Re: WTB Olympus BH2 DIC/NIC
The condensers are pretty easy to find. The slider and intermediate tubes however are extremely hard to find. I just bought the first set I've seen in more than a year. And the slider needs repair!
- Thu Oct 27, 2022 4:07 pm
- Forum: Pictures and Videos
- Topic: Old Olympus film images ID
- Replies: 7
- Views: 971
Re: Old Olympus film images ID
Those look like they're from a clinical lab. Gram stains - all under-decolorized too :roll: . If I had to guess, they look like vaginal swabs, or maybe sputum specimens contaminated with a lot of saliva :shock: . Spit, actually. Squamous epithelial cells in several, lots of neutrophils in some, and ...
- Thu Oct 13, 2022 2:05 am
- Forum: Beginner's corner
- Topic: Staining Nematodes
- Replies: 6
- Views: 1395
Re: Staining Nematodes
Here's a paper on University of Calif Riverside's Entomology department's use of DIC and video to create "virtual voucher specimens" for new species of nematodes: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2620590/pdf/296.pdf While it may not show all the features you're looking for, it should sho...