Search found 336 matches
- Fri Sep 30, 2022 7:37 pm
- Forum: Identification help
- Topic: Fluke (But What Type?)
- Replies: 4
- Views: 1172
Re: Fluke (But What Type?)
Debris. Not a fluke. Last image doesn't look like an egg either. Human parasitology isn't for amateurs. I'd pick other specimens if I were you. Or, consult this from the American Society for Microbiology: https://www.amazon.com/Practical-Guide-Diagnostic-Parasitology-Books/dp/1683670396 Lynn Garcia ...
- Wed Sep 21, 2022 3:33 am
- Forum: Pictures and Videos
- Topic: Plankton sample
- Replies: 18
- Views: 2849
Re: Plankton sample
Very nice!
- Sun Sep 18, 2022 4:07 pm
- Forum: Beginner's corner
- Topic: full frame dslr on which microscope?
- Replies: 12
- Views: 2899
Re: full frame dslr on which microscope?
Remember, for years, before the advent of CCD and CMOS cameras, film was the only way to record microscopy images. All of the major manufacturers have systems that would project from 35mm up to 4x5. So, yes, you can get systems that cover your 35mm frame. I don't know about the Chinese scopes, but I...
- Fri Sep 16, 2022 3:32 am
- Forum: Miscellaneous
- Topic: transport of a heavy microscope - how to handle it?
- Replies: 18
- Views: 5963
Re: transport of a heavy microscope - how to handle it?
That I do. Not as complete as I'd like, but whose is?I assume you have a DIY workshop?
- Thu Sep 15, 2022 6:57 pm
- Forum: Pictures and Videos
- Topic: Beautiful observation - Obertrumia Aurea?
- Replies: 20
- Views: 2726
Re: Beautiful observation - Obertrumia Aurea?
Nicely done!
- Mon Sep 12, 2022 3:27 am
- Forum: Beginner's corner
- Topic: medical student help deciding on an Olympus model please
- Replies: 9
- Views: 2233
Re: medical student help deciding on an Olympus model please
You will need specific phase contrast objectives, The condenser alone is not enough. An offset phase ring will give you pretty nice oblique contrast which sometimes can show as much and be more pleasant than phase. Be aware too, that unless the labs you normally work with use phase contrast for urin...
- Sat Sep 10, 2022 9:06 pm
- Forum: Beginner's corner
- Topic: medical student help deciding on an Olympus model please
- Replies: 9
- Views: 2233
Re: medical student help deciding on an Olympus model please
A BH2 will serve you nicely. I used one in a clinical lab for 20 years or so. All of the extras you mention are readily available. DPlans are quite nice with really flat fields, SPlans are even nicer, but generally overkill clinically. A couple of things though. I've never seen anyone use phase for ...
- Tue Aug 30, 2022 3:24 pm
- Forum: Microscopes and optics
- Topic: Restoring an Olympus IMT-2
- Replies: 10
- Views: 1817
Re: Restoring an Olympus IMT-2
Third camera option is to replace the IMT binoc head with a BH-2 Trinoc, add the appropriate projection lens and adapters for your camera and frame size, then utilize that just like it was a BH-2.
- Wed Aug 24, 2022 7:05 pm
- Forum: Miscellaneous
- Topic: Olympus nearing deal to sell microscope unit for more than US$2 billion: Sources
- Replies: 8
- Views: 1826
Re: Olympus nearing deal to sell microscope unit for more than US$2 billion: Sources
Silly me, I just thought Evident was just a stupid corporate name change. I hadn't heard about the company being up for sale. PeteM's right. These things rarely go well for anyone other than the private equity firm. I'm betting customer service gets cut, middle management gets cut, R&D gets cut, off...
- Wed Aug 24, 2022 2:43 am
- Forum: Specimens, samples and slides
- Topic: Slide Storage
- Replies: 5
- Views: 1985
Re: Slide Storage
Pathology always stores their slides vertically, slide to slide without spacing. And they store them that way for years, even decades. They produce way too many slides to do it any other way. Then again, they're tissue, blood and body fluid slides that seem to have little tendency to slide. No diato...
- Fri Aug 19, 2022 10:34 pm
- Forum: Camera systems and imaging
- Topic: Thin helicoid grease...
- Replies: 8
- Views: 1584
Re: Thin helicoid grease...
That link is to Amazon as a source...
- Fri Aug 19, 2022 8:04 pm
- Forum: Miscellaneous
- Topic: Brain eating amoeba kills child inNebraska
- Replies: 8
- Views: 2368
Re: Brain eating amoeba kills child inNebraska
An illustration. It's on the CDC's main page about Naegleria. A bunch of other pages, too.
- Fri Aug 19, 2022 7:56 pm
- Forum: Camera systems and imaging
- Topic: Thin helicoid grease...
- Replies: 8
- Views: 1584
- Wed Jul 20, 2022 6:16 pm
- Forum: Microscopes and optics
- Topic: Why is DIC so Expensive?
- Replies: 13
- Views: 2213
Re: Why is DIC so Expensive?
Probably both. It's a research technique, and that implies a very small market. Research is generally funded through grants and that tends to support higher prices. DIC was never intended to be an amateur technique, but I suspect now more amateurs utilize it than researchers, given the advent of new...
- Tue Jul 19, 2022 10:36 pm
- Forum: Camera systems and imaging
- Topic: Camera won't take pictures
- Replies: 3
- Views: 1064
Re: Camera won't take pictures
Break out you camera manual. Somewhere in there is a function to allow shutter release without a lens. Enable it. It's disabled by default since normally you take pictures with a lens. Obviously your adapter doesn't tell the camera it is a lens. Also see: https://www.dpreview.com/forums/thread/4437376
- Fri Jul 15, 2022 2:35 pm
- Forum: Specimens, samples and slides
- Topic: Interesting bacteria structures or problem with over heat fixing?
- Replies: 3
- Views: 1443
Re: Interesting bacteria structures or problem with over heat fixing?
Years ago, my first microbiology professor said of heat fixing, to pass it through the flame 2-3 times, smear up, then lay the slide on the back of your (then ungloved) hand. If you heard the sound of sizzling flesh, it was too hot!
- Sun Jul 10, 2022 4:09 pm
- Forum: Specimens, samples and slides
- Topic: Dry mounted slides (no coverslip) are hard to see
- Replies: 4
- Views: 1599
Re: Dry mounted slides (no coverslip) are hard to see
In clinical labs dry mounted blood smears get a thin coating of immersion oil over them prior to examination with low power objectives to reduce diffraction. Horrible images otherwise. Body fluid smears and grams stains, too. It acts just like a coverslip. Another drop is added when going up to 100x...
- Sun Jul 10, 2022 3:59 pm
- Forum: Specimens, samples and slides
- Topic: Can these be saved?
- Replies: 7
- Views: 2612
Re: Can these be saved?
Nothing. The tissue or blood smear remains fixed to the glass as long as you don't accidentally scrape part of it off! I can't vouch for specimens not originally fixed to the glass slide.
- Sun Jul 10, 2022 3:56 pm
- Forum: Identification help
- Topic: Help identifying round worm or nematode?
- Replies: 2
- Views: 954
Re: Help identifying round worm or nematode?
Probably Dero digitata (Ward and Whipple, Fresh Water Biology, 2nd. Ed., pgs 530-531, and https://worms.myspecies.info/taxonomy/term/936)
Edit: Nice images, too!
Edit: Nice images, too!
- Sat Jul 09, 2022 2:30 am
- Forum: Specimens, samples and slides
- Topic: Can these be saved?
- Replies: 7
- Views: 2612
Re: Can these be saved?
Yes. Before I retired I re-coverslipped a couple hundred teaching slides I had made as a student and mounted with Permount. Soak in Xylene if you can. It's a lot faster than the citrus-based solvents. They work, they're just slower. Xylene should loosen the coverslip in a couple of days. Flood the s...
- Tue Jun 28, 2022 3:13 pm
- Forum: Camera systems and imaging
- Topic: Mirrorless camera and adapter combination?
- Replies: 26
- Views: 4697
Re: Mirrorless camera and adapter combination?
Be aware that video usually does not use the full sensor. :cry: Look in your camera specs to see the pixel dimensions and you can calculate the physical size of the part of the sensor being used for the resolution you have chosen. Each of the various video formats will use a different set of pixel d...
- Sun Jun 26, 2022 2:13 am
- Forum: Camera systems and imaging
- Topic: Nikon Live view vs actual picture
- Replies: 8
- Views: 1594
Re: Nikon Live view vs actual picture
Have you checked your camera settings to be sure your photos are not being saved as a really low resolution jpg?
- Thu Jun 16, 2022 11:07 pm
- Forum: Pictures and Videos
- Topic: Count colonies on mobile phone. Get it done in a few seconds
- Replies: 2
- Views: 1202
Re: Count colonies on mobile phone. Get it done in a few seconds
Just don't use it in clinical medicine in the US as it's legally a medical device and needs FDA 510(K) clearance before it can be used.
- Mon May 30, 2022 2:56 pm
- Forum: Miscellaneous
- Topic: These 'New Members'
- Replies: 20
- Views: 4103
Re: These 'New Members'
Thanks Wes!
- Sat May 28, 2022 11:31 pm
- Forum: Miscellaneous
- Topic: These 'New Members'
- Replies: 20
- Views: 4103
Re: These 'New Members'
It's not that these posts aren't annoying. They certainly are. But requiring an answer to a rather esoteric question doesn't seem like a productive way to screen potential members for bots. They're usually pretty obvious, and I don't find them annoying enough to do anything keep new folks away. This...
- Sat May 28, 2022 4:02 pm
- Forum: Miscellaneous
- Topic: These 'New Members'
- Replies: 20
- Views: 4103
Re: These 'New Members'
Wes wrote: How about "calculate the resolution of a microscope with a 63/1,4 objective coupled to a 0.9 condenser at 550 nm"? I'd venture a guess that most amateurs wouldn't care what the resolution is numerically. Most professional microscope users wouldn't either. I know I've never bothered to cal...
- Thu May 19, 2022 2:58 pm
- Forum: Digital processing
- Topic: IC Measure alternative ?
- Replies: 4
- Views: 3576
Re: IC Measure alternative ?
Have you tried running your old software in the Win 10 Compatibility Mode? It's designed to allow older software to run on Win 10.
- Tue May 03, 2022 3:58 pm
- Forum: Beginner's corner
- Topic: Do I need to add immersion oil to the condenser too?
- Replies: 5
- Views: 1473
Re: Do I need to add immersion oil to the condenser too?
It's generally not important. For a little perspective, in clinical labs we used a LOT of oil. Every single WBC differential slide, and every single gram stain, was examined under oil immersion at the objective only. Unless the slide had be coverslipped and stored for later pathology review, we didn...
- Fri Apr 22, 2022 11:52 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Sold: Olympus BX60 Polarization Microscope. Portland, Oregon
- Replies: 4
- Views: 1571
Re: Olympus BX60 Polarization Microscope. Portland, Oregon
That's an absolute steal. If I was anywhere near you I'd grab it, and I already have one!
- Wed Apr 20, 2022 3:30 pm
- Forum: My microscope
- Topic: I need some sample Salmonella bacteria in microscopic research topics
- Replies: 1
- Views: 852
Re: I need some sample Salmonella bacteria in microscopic research topics
Have a chat with your university's head of clinical or epidemiological microbiology. They have all the resources you will need.
If you want to do research at a university medical school, you need to go through the proper channels.
If you want to do research at a university medical school, you need to go through the proper channels.