Search found 147 matches

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: 127

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: 401

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: 658

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: 1765

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: 1444

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: 1567

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: 4060

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: 1411

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: 782

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: 1129

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: 5054

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: 1379

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: 2342

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: 15951

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: 15951

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: 15951

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: 4476

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: 1866

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: 8407

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: 8407

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: 4611

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: 6968

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...
by Tom Jones
Sun Jan 05, 2020 3:35 am
Forum: Microscopes and optics
Topic: Different ways to set up DIC (NIC) on BH-2 Microscopes
Replies: 30
Views: 5110

Re: Different ways to set up DIC (NIC) on BH-2 Microscopes

Tom, Just when you think you have things figured out. :o Thanks for adding the last photos. I hadn't seen the differences in the intermediate tube either. Mine is the BH2 version. Pretty subtle differences. I hope the prisms are the same. Sometimes it's handy to go through a dealer! Pricey, but you ...
by Tom Jones
Sat Jan 04, 2020 2:24 pm
Forum: Microscopes and optics
Topic: Different ways to set up DIC (NIC) on BH-2 Microscopes
Replies: 30
Views: 5110

Re: Different ways to set up DIC (NIC) on BH-2 Microscopes

Hi Tom, The Stephanoceros video was just normal DIC, no tricks of any kind. I was actually just checking a fresh plankton net collection before I went to a Science Night demo at a local high school when I found it. All the setup and shooting was done in about 30 minutes as I had to leave for the dem...
by Tom Jones
Sat Jan 04, 2020 4:23 am
Forum: Microscopes and optics
Topic: Different ways to set up DIC (NIC) on BH-2 Microscopes
Replies: 30
Views: 5110

Re: Different ways to set up DIC (NIC) on BH-2 Microscopes

Damn. I'm sorry. I didn't look at the last picture apparently, as it was mostly a response to the intermediate tube price. I paid about $850 for my intermediate tube. I've never seen that type condenser before. Apparently I got lucky when I bought mine! Since that one doesn't have a dovetail on the ...
by Tom Jones
Fri Jan 03, 2020 5:08 am
Forum: Microscopes and optics
Topic: Different ways to set up DIC (NIC) on BH-2 Microscopes
Replies: 30
Views: 5110

Re: Different ways to set up DIC (NIC) on BH-2 Microscopes

Tom, A word to the wise... eat Ramen for a while :? , sell your kids :shock: , just don't sell the DCD, or the DIC set for that matter. Dedicated dark field condensers are better than simple stops, and you're going to like dark field. It's worth learning to swap condensers quickly and efficiently to...
by Tom Jones
Thu Jan 02, 2020 6:00 am
Forum: Microscopes and optics
Topic: Different ways to set up DIC (NIC) on BH-2 Microscopes
Replies: 30
Views: 5110

Re: Different ways to set up DIC (NIC) on BH-2 Microscopes

Tom, The Dealcorner intermediate tube is the BH2-NA. It's also too expensive, so he should get to keep it. :o This is why I think it's too expensive: https://www.ebay.com/itm/Olympus-NIC-Phase-Condenser-set-for-DIC-Microscope-setup-in-good-working-order/232936455851?hash=item363c183eab:g:ZL0AAOSwPCZ...
by Tom Jones
Tue Dec 24, 2019 3:10 am
Forum: Microscopes and optics
Topic: Olympus BH2 eye pieces
Replies: 6
Views: 927

Re: Olympus BH2 eye pieces

PeteM's right about the DPlans. I used them in hematology and microbiology in a trauma center lab for a long time. They're nice lenses and relatively inexpensive. Get the WHK eyepieces. Their higher eye point is easier to use over a long period of time.

Tom