Search found 1557 matches

by KurtM
Thu Apr 11, 2019 1:39 am
Forum: Microscopes and optics
Topic: Opinions Wanted: Nikon Diaphot
Replies: 12
Views: 3635

Re: Opinions Wanted: Nikon Diaphot

That's a Diaphot TMD in the "Nikon U" link, as opposed to a Diaphot 200 or Diaphot 300. I know next to nothing about the latter two, but have owned a TMD since last summer, mine equipped for phase contrast and DIC. From the very first I have had zero interest in using any of my many other microscope...
by KurtM
Wed Apr 10, 2019 12:42 am
Forum: Pictures and Videos
Topic: Diatom with somewhere to go
Replies: 15
Views: 5168

Re: Diatom with somewhere to go

Few things look as happy as Diatoms with wanderlust. And fairly mind-blowing to think they're plants!
by KurtM
Sun Mar 24, 2019 12:56 am
Forum: Microscopes and optics
Topic: Inverted VS. Compound microscopes
Replies: 6
Views: 1546

Re: Inverted VS. Compound microscopes

I am getting along famously with an upright, inverted, and stereo scope on the bench, and each has very specific uses. My primary area of interest is diatoms, and the stereo scope is used almost constantly for a variety of jobs ranging from scanning fresh samples to micromanipulating individual frus...
by KurtM
Fri Mar 22, 2019 12:48 am
Forum: Introduce yourself
Topic: Hello y hola from Austin, Texas, USA
Replies: 4
Views: 2907

Re: Hello y hola from Austin, Texas, USA

Howdy from H town, always nice to see another Texan!
by KurtM
Wed Mar 20, 2019 12:53 am
Forum: Pictures and Videos
Topic: Article about Crystals in Polarized light and by DIC
Replies: 9
Views: 2574

Re: Article about Crystals in Polarized light and by DIC

Thank you so much for all your generous contributions, Rob, including this latest. Your remarkable images really stand apart, and your behind-the-scenes reporting is hugely appreciated!

I hereby award you the coveted Uber Geek Emoticon, sir: :ugeek:
by KurtM
Wed Mar 20, 2019 12:49 am
Forum: Pictures and Videos
Topic: le pollen aux Camélias
Replies: 3
Views: 1766

Re: le pollen aux Camélias

Yes! More pollen images, please! 8-)
by KurtM
Fri Mar 15, 2019 1:03 am
Forum: My microscope
Topic: My Zeiss Photomicroscope III
Replies: 37
Views: 17144

Re: My Zeiss Photomicroscope III

I'm jealous too. :mrgreen: What a beautiful uber-classic optical machine!
by KurtM
Fri Mar 15, 2019 12:53 am
Forum: Microscopy accessories
Topic: Product review: small aftermarket stage for stereo microscopes
Replies: 4
Views: 2281

Re: Product review: small aftermarket stage for stereo microscopes

I bought one similar to this a couple years ago: https://tinyurl.com/yye2wbwl . While it has its uses, it's largely unsuited to use with microscopes because of its rather generous bulk and heft, often unusable due its height (around 2") alone. It shines as a macro photography studio stage, however, ...
by KurtM
Thu Mar 14, 2019 12:45 am
Forum: Microscopy accessories
Topic: Product review: small aftermarket stage for stereo microscopes
Replies: 4
Views: 2281

Re: Product review: small aftermarket stage for stereo microscopes

Thanks for that. What's the height from footing to stage top?
by KurtM
Thu Mar 14, 2019 12:39 am
Forum: Pictures and Videos
Topic: Biddulphia biddulphiana (the saga continues)
Replies: 5
Views: 1529

Re: Biddulphia biddulphiana (the saga continues)

Very cool, I missed that post, thank you.
by KurtM
Wed Mar 13, 2019 12:54 am
Forum: Pictures and Videos
Topic: Marine Peritrich
Replies: 4
Views: 1252

Re: Marine Peritrich

Yes, but how on earth do you get it to hold still for 22 images?! :shock:
by KurtM
Wed Mar 13, 2019 12:53 am
Forum: Pictures and Videos
Topic: Biddulphia biddulphiana (the saga continues)
Replies: 5
Views: 1529

Re: Biddulphia biddulphiana (the saga continues)

Very beautiful image, tantalizing as usual. Are these super abundant, simply a favorite subject, or anything like that? I'm dying to know what form it takes in cross section - I'm guessing a fairly well flattened ellipse...
by KurtM
Sun Mar 10, 2019 1:47 am
Forum: Pictures and Videos
Topic: More Foram Fun
Replies: 5
Views: 1465

Re: More Foram Fun

Thanks, all!
why is the foram absent from the polar image ? would demonstrate the difference from the quarz grains.
Where were you when I needed you? :lol: Guess I gotta go back and re-do that one...
by KurtM
Sat Mar 09, 2019 2:34 am
Forum: Pictures and Videos
Topic: More Foram Fun
Replies: 5
Views: 1465

More Foram Fun

While excavating through the archives I ran across this image of a little arrangement of forams that I posted a while back, but hope you won't mind if I repeat it because it got me fired up to retrieve the sample, dig a few more out, and have a little fun trying to make some interesting new pix. The...
by KurtM
Fri Mar 08, 2019 1:40 am
Forum: Introduce yourself
Topic: Hello from Bloomfield, CT, USA
Replies: 1
Views: 2073

Re: Hello from Bloomfield, CT, USA

And welcome aboard, sir. Your granddaughters sound very fortunate!
by KurtM
Fri Mar 08, 2019 1:38 am
Forum: Pictures and Videos
Topic: Foraminifer from Honduras
Replies: 5
Views: 1562

Re: Foraminifer from Honduras

Yes, that really came out spectacular. Inspirational, even (I really dig forams)!
by KurtM
Wed Feb 27, 2019 4:36 pm
Forum: Pictures and Videos
Topic: Diatom Mysteries
Replies: 5
Views: 1722

Re: Diatom Mysteries

Thank you, all! 75RR, both images are stacks, as the valves stand around 9 µm in profile (and you know all about the 63/1.4 Planapo DOF). The second image was inverted after desaturating to better represent detail.
by KurtM
Wed Feb 27, 2019 2:32 am
Forum: Pictures and Videos
Topic: Diatom Mysteries
Replies: 5
Views: 1722

Diatom Mysteries

This diatom form beats everything I've ever seen. I first ran across it three years ago, and have been trying to pin an ID on it ever since. Although it appears sizable enough, and robustly silicified, it is seldom seen after a boiling H202 cleaning procedure. The benthic sample in which it is found...
by KurtM
Wed Feb 20, 2019 1:49 am
Forum: My microscope
Topic: My beast
Replies: 10
Views: 4531

Re: My beast

Yes, very interesting to see ... especially for me, who notes remarkable similarities between the IX-70 and my Nikon Diaphot TMD. Is the IX-70 a finite or infinite system? Does the viewing turret under the eyepieces have a built-in Bertrand lens and magnifier? Does your scope have the second photo p...
by KurtM
Sun Feb 17, 2019 1:29 am
Forum: Illumination Techniques
Topic: Epi DIC of an integrated circuit
Replies: 12
Views: 3684

Re: Epi DIC of an integrated circuit

That was fairly mind-blowing on a couple different planes of thought. Thanks for posting that!
by KurtM
Sat Feb 09, 2019 2:05 am
Forum: Beginner's corner
Topic: Zeiss Universal - I think - Lot's of Questions
Replies: 25
Views: 6047

Re: Zeiss Universal - I think - Lot's of Questions

Yes, very nice to see another Houston area macro/photomicrography enthusiast pop up! I think I may know your San Antonio seller, looks just like his garage, haha. If I'm on the right track, he's a good and honest guy who will likely stand behind what he sells. For you, I'd say it's a matter of takin...
by KurtM
Wed Feb 06, 2019 1:36 am
Forum: Pictures and Videos
Topic: Hydra: Nature's Lava Lamp
Replies: 5
Views: 1358

Re: Hydra: Nature's Lava Lamp

Fan, don't know the answers to your questions. With such a rich supply I keep wanting to do some experimenting with them, but just don't have the time.
by KurtM
Tue Feb 05, 2019 2:58 am
Forum: Pictures and Videos
Topic: Hydra: Nature's Lava Lamp
Replies: 5
Views: 1358

Hydra: Nature's Lava Lamp

I can spend hours watching slow-motion Hydra. And since I have a good colony going in a mini aquarium at present, the project arose to get a decent image comparing green and brown Hydras. Well, I had a remarkable turn of luck and ended up with a cool picture I want to call "Dancing Partners": three ...
by KurtM
Thu Jan 31, 2019 2:01 am
Forum: Pictures and Videos
Topic: Hydra and Bosmina = Gulp and Burp
Replies: 19
Views: 3559

Re: Hydra and Bosmina = Gulp and Burp

Interesting subject, actually, if you ask me. I've run into dead ponds before and was starting to think I must be the only one! And I have one pond from which I've been collecting for years that runs hot and cold, sometimes yielding rich samples teeming with wee life, and other times hardly a thing ...
by KurtM
Wed Jan 30, 2019 2:05 am
Forum: Identification help
Topic: Small animacules and rotifers
Replies: 4
Views: 1896

Re: Small animacules and rotifers

Looks like coleps to me.
by KurtM
Wed Jan 30, 2019 1:45 am
Forum: Pictures and Videos
Topic: Hydra and Bosmina = Gulp and Burp
Replies: 19
Views: 3559

Re: Hydra and Bosmina = Gulp and Burp

Thanks, Penny -- great to see you here!

I don't know if you're able to get out and do collecting, but can say with fair certainty there's no shortage of hydra over there in the UK.
by KurtM
Mon Jan 28, 2019 1:56 am
Forum: Pictures and Videos
Topic: Hydra and Bosmina = Gulp and Burp
Replies: 19
Views: 3559

Re: Hydra and Bosmina = Gulp and Burp

Very nice 'action' shots from your most productive house pond. Is it self sustaining or do you need to tend it? Depends on what you want out of it. Sometimes I let it go for months and months just to see what eventually happens. Sometimes I attempt to culture the critters I'm interested in at the m...
by KurtM
Sun Jan 27, 2019 2:11 am
Forum: Pictures and Videos
Topic: Hydra and Bosmina = Gulp and Burp
Replies: 19
Views: 3559

Re: Hydra and Bosmina = Gulp and Burp

Yep, even with today's DSLRs it's not only possible, but practical to use simple prime lenses with a "reverse" adapter plus extension tubes or bellows. At the same time, some portrait photographers prefer macro lenses over simple prime lenses for conventional shooting. There are endless possibilitie...
by KurtM
Sat Jan 26, 2019 8:43 pm
Forum: Pictures and Videos
Topic: Hydra and Bosmina = Gulp and Burp
Replies: 19
Views: 3559

Re: Hydra and Bosmina = Gulp and Burp

Do you have an idea about how your macro lens with camera compares to a stereo microscope with camera on one of the eyepieces in terms of handling and image quality? Bob, I really don't. I've never been able to get satisfactory photo images through a stereo scope, let alone what I consider nice one...
by KurtM
Sat Jan 26, 2019 3:36 am
Forum: Pictures and Videos
Topic: Hydra and Bosmina = Gulp and Burp
Replies: 19
Views: 3559

Hydra and Bosmina = Gulp and Burp

While not precisely microscopy, with any luck it's close enough: I took a string of photos of a green Hydra ingesting a Bosmina, which is one of the Cladocerans, or "water fleas" (of which Daphnia is the best known example), using the Canon MP-E 65 mm extreme macro lens I gave myself for Christmas. ...