Search found 153 matches

by Tom Jones
Wed Dec 02, 2020 4:21 pm
Forum: For forum members who want to buy and sell equipment
Topic: Looking for Olympus Photomicro Adapter L
Replies: 15
Views: 801

Re: Looking for Olympus Photomicro Adapter L

I use these Diagnostic Instruments PA1-10A adapters. They work really well on either BH2 or BX series microscopes in place of the Photomicro Adapter L: https://www.ebay.com/itm/Nikon-F-Mount-to-Olympus-BH2-BX-Microscope-DSLR-Camera-Adapter-PA1-10A/223686036249?hash=item3414ba0b19:g:eYAAAOSwTvNdkLqF ...
by Tom Jones
Sat Nov 28, 2020 3:33 pm
Forum: Beginner's corner
Topic: STAINS.. Sooo many these days
Replies: 7
Views: 215

Re: STAINS.. Sooo many these days

It might be a bit excessive, and it's certainly thorough, but there's always this to help you make up your mind: https://www.amazon.com/Conns-Biological ... 1859960995 :shock:
by Tom Jones
Sat Nov 07, 2020 4:52 pm
Forum: Microscopes and optics
Topic: Olympus bx50 microscope
Replies: 7
Views: 374

Re: Olympus bx50 microscope

The BX-50 is an excellent microscope. I don't know who mentioned the sunburned eyes, but they don't know what they're talking about. These microscopes are designed for research and clinical use where they are used for hours on end. I don't remember any of my colleagues in clinical labs complaining a...
by Tom Jones
Fri Oct 30, 2020 5:08 pm
Forum: Pictures and Videos
Topic: Displaying my images on YouTube
Replies: 8
Views: 756

Re: Displaying my images on YouTube

Actually, unless you are trying to demonstrate how a deaf person would view your slideshow 8-) , some kind of music or background sound is better. A slide show without sound or narration is like handing friends a series of printed still image without comment. :twisted: You probably wouldn't do it. E...
by Tom Jones
Thu Oct 22, 2020 2:36 am
Forum: Pictures and Videos
Topic: Rouleaux
Replies: 2
Views: 315

Re: Rouleaux

Dilute the drop of blood immediately with saline. Put the saline drop on the slide first, then a small drop of blood and mix.
by Tom Jones
Sat Oct 03, 2020 11:20 pm
Forum: My microscope
Topic: A thought about size
Replies: 19
Views: 1511

Re: A thought about size

Per your Wiki link: Psychophysics quantitatively investigates the relationship between physical stimuli and the sensations and perceptions they produce. Psychophysics has been described as "the scientific study of the relation between stimulus and sensation"[1] or, more completely, as "the analysis ...
by Tom Jones
Sun Sep 20, 2020 3:28 am
Forum: Beginner's corner
Topic: Need help in buying first "used" microscope.
Replies: 4
Views: 349

Re: Need help in buying first "used" microscope.

Anton, I personally think that particular microscope is a good deal. Synchrostream has been around a long time and sells quite a few microscopes and parts. They offer a 30 day return, and free shipping. Properly packaged shipping's about $100 by itself. It's not the cheapest, but it's well within yo...
by Tom Jones
Fri Sep 18, 2020 7:13 pm
Forum: For forum members who want to buy and sell equipment
Topic: Looking for NFK 2.5x LD relay lens and Olympus OM L phototube
Replies: 24
Views: 982

Re: Looking for NFK 2.5x LD relay lens and Olympus OM L phototube

I have a spare OM adapter I'll sell, but no spare NFK 2.5x photoeyepiece.
$125 plus insured shipping. PM me if you're interested.

Tom
by Tom Jones
Sat Aug 29, 2020 2:49 pm
Forum: Beginner's corner
Topic: Opinions on listing
Replies: 10
Views: 1023

Re: Opinions on listing

While lots of sellers are clueless, there are good ones too. Synchrostream has been around for a long time and is quite aware as to what they are selling. Not cheap, but I've bought from them before and been satisfied. Notice too the 30 day return period. That's not something a dicey seller will usu...
by Tom Jones
Wed Aug 26, 2020 2:47 pm
Forum: Beginner's corner
Topic: Microscope for engine oil analysis
Replies: 43
Views: 2927

Re: Microscope for engine oil analysis

Is the microscopic analysis you're planning to do in addition to, or in lieu of normal oil (spectrographic, etc.) analysis?? Among others... https://www.blackstone-labs.com/tests/standard-analysis/ I have an oil analysis done, cut the oil filter and inspect the element each time I change oil on my a...
by Tom Jones
Sun Jul 26, 2020 3:46 pm
Forum: Resources (online, books etc.)
Topic: Microscopy FAQ
Replies: 13
Views: 2103

Re: Microscopy FAQ

Wow Carl. Nicely done!
by Tom Jones
Fri Jul 24, 2020 2:18 am
Forum: Beginner's corner
Topic: floaters
Replies: 13
Views: 1902

Re: floaters

Floaters are inside your eye. There is nothing you can put in your eyes that will get rid of them. The best option is to learn to ignore them. If they're bad, the next best option is laser vitriolysis, where a YAG laser is used by an ophthalmologist to disrupt them as much as possible. There are fou...
by Tom Jones
Fri Jun 19, 2020 3:17 am
Forum: For forum members who want to buy and sell equipment
Topic: Wanted: Olympus NFK 1.67x or NFK 2.5x
Replies: 24
Views: 4473

Re: Wanted: Olympus NFK 1.67x or NFK 2.5x

Just out of curiosity, what do you consider to be a reasonable price for the NFK 2.5x and NFK 1.67X?
by Tom Jones
Mon Jun 15, 2020 4:06 pm
Forum: Beginner's corner
Topic: Condensers - venting frustration
Replies: 13
Views: 1807

Re: Condensers - venting frustration

Maryfox, As you have found out, basic microscopy with low magnifications and relatively low expectations is pretty easy. Once you start up the slope wanting more, it gets a lot more complicated. I've posted this once before several years ago http://www.microbehunter.com/microscopy-forum/viewtopic.ph...
by Tom Jones
Wed May 27, 2020 4:32 am
Forum: Microscopes and optics
Topic: Introductory microscope and with digital adapter?
Replies: 9
Views: 1003

Re: Introductory microscope and with digital adapter?

Actually, using that microscope, I think your best bet is to use your cell phone. It's much easier than it sounds. They can certainly shoot 1080p and probably shoot 4k video if you would like. They can also be wired to an external monitor as well. You'll get to see on your screen everything your eye...
by Tom Jones
Mon May 11, 2020 2:30 am
Forum: For forum members who want to buy and sell equipment
Topic: Advice on physician microscope
Replies: 8
Views: 1301

Re: Advice on physician microscope

PeteM is right. My vote is for the Olympus BX series. I was a clinical lab supervisor in the second busiest trauma center in California for a long time. In 1999, when we built a new hospital, we switched from AO's and Olympus BH-2s, to Olympus BX-40's in the clinical lab (micro, UA, and hematology)....
by Tom Jones
Thu Apr 30, 2020 2:44 pm
Forum: Beginner's corner
Topic: Specimen ethics
Replies: 42
Views: 5828

Re: Specimen ethics

I suppose I'm lucky in that my career was spent generally in the detection and identification of pathogens in clinical labs. Returning the specimens, or the gazillion things we grew from them, was never a consideration. For some reason, even with something as cute as Giardia, with those nice big "ey...
by Tom Jones
Mon Apr 20, 2020 5:12 pm
Forum: Beginner's corner
Topic: Imaging with different coverglass thickness
Replies: 18
Views: 1733

Re: Imaging with different coverglass thickness

At the risk of being obvious, have you asked them?

While someone here might have a good explanation as to why you might want to,- I don't - it's only speculation as to why they are doing it.
by Tom Jones
Thu Mar 26, 2020 3:48 am
Forum: Camera systems and imaging
Topic: Olympus BHS vs modern microscope
Replies: 8
Views: 2572

Re: Olympus BHS vs modern microscope

Antartica, From a practical point of view, having nicer objectives serves no purpose unless, and until, you need them. If you are " not experienced enough to see differences ", buy a decent microscope and learn how to use it. When you are no longer limited by your experience, and can tell the differ...
by Tom Jones
Fri Mar 13, 2020 3:10 pm
Forum: Beginner's corner
Topic: Discovery of Microorganisms + Advice on Research Microscope
Replies: 33
Views: 16501

Re: Discovery of Microorganisms + Advice on Research Microscope

Filters can just drop in on top of the light port. No extra holder is necessary. The little filter holder that goes in the front of the lamp house holds the same size filters. I prefer dropping them in on the light port on the occasions where I use one not included in a condenser. If you feel like s...
by Tom Jones
Wed Mar 11, 2020 3:22 am
Forum: Beginner's corner
Topic: Discovery of Microorganisms + Advice on Research Microscope
Replies: 33
Views: 16501

Re: Discovery of Microorganisms + Advice on Research Microscope

Could anyone comment on this listing: https://www.ebay.com/itm/OLYMPUS-BH2-TR ... Sw7t9eVZoD With four DPlans and a trinoc head, and free shipping, it looks like a pretty good price to me, and I have a BHS. Importantly, the seller says it's tested, works fine, and backs it up by accepting returns u...
by Tom Jones
Tue Mar 10, 2020 3:15 am
Forum: Beginner's corner
Topic: Discovery of Microorganisms + Advice on Research Microscope
Replies: 33
Views: 16501

Re: Discovery of Microorganisms + Advice on Research Microscope

To insert a little reality here, while you might, eventually find something new, it is extremely unlikely . :? In order to find something new, you must generally be able to identify all of the currently known organisms of the type you are studying. Why? Unless you can identify potentially each piece...
by Tom Jones
Tue Mar 10, 2020 2:20 am
Forum: Identification help
Topic: Good Book for Microbe Identification?
Replies: 9
Views: 4703

Re: Good Book for Microbe Identification?

Guide to Microlife, Rainis and Russel: https://www.amazon.com/Guide-Microlife-Science-Life-Environmental/dp/0531112667/ref=sr_1_1?keywords=guide+to+microlife+rainis&qid=1583805774&sr=8-1 Free-Living Freshwater Protozoa, a Color Guide, Patterson: https://www.amazon.com/Free-Living-Freshwater-Protozoa...
by Tom Jones
Fri Feb 28, 2020 3:37 pm
Forum: Beginner's corner
Topic: Immersion Oil Recommendation
Replies: 2
Views: 1941

Re: Immersion Oil Recommendation

I've always preferred a 50:50 mixture of high and low viscosity for normal work in clinical labs, and that's what I use at home. :D

Buying both to mix, while a bit more expensive, has the side benefit of allowing you to try all three and stay with what you find most convenient for the work you do.
by Tom Jones
Fri Feb 21, 2020 2:43 pm
Forum: Camera systems and imaging
Topic: What is a good video camera to use with a microscope?
Replies: 20
Views: 8782

Re: What is a good video camera to use with a microscope?

No. The HDMI output while recording can be in 4K. If you do not have a 4K monitor, it will down sample the signal to full HD, and tell you on screen it is doing so. For external (Ninja, etc.) recording you can get 4K with 10 bit 4:2:2 color as well. You can download the regular and extended manuals ...
by Tom Jones
Fri Feb 07, 2020 2:16 am
Forum: Camera systems and imaging
Topic: What is a good video camera to use with a microscope?
Replies: 20
Views: 8782

Re: What is a good video camera to use with a microscope?

So do the cameras recommended here stay on, with HDMI live view, plugged in (ac) indefinitely? The Panasonic GH4 stays on for me, with HDMI out to a monitor, recording continuously in 4K (which is about as hard on battery life as you can get), for between 1 hr 10 min and 1 hr 20 min on a 64GB card ...
by Tom Jones
Tue Jan 21, 2020 5:27 pm
Forum: Illumination Techniques
Topic: Making DIC Prisms
Replies: 14
Views: 4893

Re: Making DIC Prisms

I've been looking for more or less the same information for some time. I want to assess prism compatibility, both within a manufacturer's system, and between manufacturers, without actually having to do direct, and therefore very expensive, comparisons. For example, will a Zeiss prism system work we...
by Tom Jones
Sat Jan 11, 2020 9:25 pm
Forum: Camera systems and imaging
Topic: BH2 BHS MTV
Replies: 37
Views: 7570

Re: BH2 BHS MTV

Tom, What you need is a Diagnostic Instruments PA1-10A adapter. It's a direct replacement for the Olympus Photomicro Adapter L, but instead of the Olympus camera mount has a T-ring thread so you can mount any camera you can get a T-ring adapter for. I've used them on both the BH series (BHS), and th...