Search found 1554 matches

by KurtM
Tue Jan 15, 2019 1:52 am
Forum: Illumination Techniques
Topic: self made filter slides
Replies: 12
Views: 3957

Re: self made filter slides

As an aside, I had trouble understanding rolling shutters until I watched this excellent video:

https://www.youtube.com/watch?v=dNVtMmLlnoE

PS: I'm a Smarter Every Day fan, this guy has a ton a great stuff.
by KurtM
Sun Jan 13, 2019 1:51 am
Forum: For forum members who want to buy and sell equipment
Topic: For sale: Nikon Phase telescopes
Replies: 5
Views: 2406

Re: For sale: Nikon Phase telescopes

I bought one, and it's a fine piece. A phase telescope is a very worthwhile item to have on the bench whether you use phase contrast or not, and this is a good buy.
by KurtM
Mon Jan 07, 2019 1:36 am
Forum: Microscopy accessories
Topic: Slotted screwdriver blade thickness
Replies: 24
Views: 6769

Re: Slotted screwdriver blade thickness

Anyone wanting to learn to sharpen knives (or any other blade) would do well to use a stereo microscope to monitor results... :idea:
by KurtM
Wed Jan 02, 2019 1:49 am
Forum: Off Topic
Topic: Happy new year
Replies: 5
Views: 3258

Re: Happy new year

HNY from Texas - yee haw!
by KurtM
Fri Dec 28, 2018 1:50 am
Forum: Introduce yourself
Topic: new well not really
Replies: 2
Views: 1806

Re: new well not really

No question about it, you live in an excellent place for such an inquisitive person with so many interests! You're not the first astronomer I've heard of who's a diesel mechanic by day - must be something about turning wrenches on big engines that makes you see stars, or at least want to! I suppose ...
by KurtM
Sat Dec 22, 2018 9:27 pm
Forum: Pictures and Videos
Topic: Podocystis sp.
Replies: 8
Views: 1553

Re: Podocystis sp.

Wow -- super cool! 8-)

Happy Solstice!
by KurtM
Sat Dec 15, 2018 3:37 am
Forum: My microscope
Topic: My Leitz Orthoplan
Replies: 85
Views: 31063

Re: My Leitz Orthoplan

Wow, that's a real beauty! I can't wait to hear about your adventures with it...
by KurtM
Sun Dec 09, 2018 1:36 am
Forum: Microscopes and optics
Topic: put a camera on the Olympus SZ40
Replies: 4
Views: 1267

Re: put a camera on the Olympus SZ40

Thanks for that -- quite a collection of gear you're amassing there, ol' Charles better look out!
by KurtM
Sat Dec 08, 2018 1:47 am
Forum: Microscopes and optics
Topic: put a camera on the Olympus SZ40
Replies: 4
Views: 1267

Re: put a camera on the Olympus SZ40

Well, are you going to show us how you mated the cam to scope? Inquiring minds want to know.

(Yes, I have an Olympus SZ40.)
by KurtM
Sat Dec 08, 2018 1:46 am
Forum: Introduce yourself
Topic: Hello from The Netherlands
Replies: 53
Views: 15258

Re: Hello from The Netherlands

Okay, now that we've gotten that out of the way, time to start looking at a stereo microscope. Gotta have a stereo microscope too, you know.

:mrgreen:
by KurtM
Thu Dec 06, 2018 2:05 am
Forum: Pictures and Videos
Topic: Gammarus spp In Different Lights
Replies: 3
Views: 975

Re: Gammarus spp In Different Lights

Rod, I'll bet you have seen these guys before, probably took 'em for some sort of insect larvae zipping around. I believe they're fairly ubiquitous in FW pond/river/birdbath samples. Big enough to be easy naked-eye visible, this one is 4 mm long and as I'm sure you know that's 1/8" ... and we old dr...
by KurtM
Wed Dec 05, 2018 12:25 am
Forum: Pictures and Videos
Topic: Gammarus spp In Different Lights
Replies: 3
Views: 975

Gammarus spp In Different Lights

I have been fooling around with mini-aquariums again, and for today's amusement tried my hand at imaging a larger critter than I normally tackle: a Gammarus. I'm not up on my amphipod crustaceans, and there are a zillion of these things, so I leave species to the experts. These images are stitches o...
by KurtM
Tue Dec 04, 2018 1:46 am
Forum: Introduce yourself
Topic: Hello from The Netherlands
Replies: 53
Views: 15258

Re: Hello from The Netherlands

Well I'll be, there's Jan van Gastel, an old friend from way back! As I recall, we had great fun comparing notes on building large aperture Dobsonian telescopes with one-piece truss tube assemblies and equatorial tracking platforms. Good to see you here Jan -- small universe, eh?
by KurtM
Thu Nov 22, 2018 2:04 am
Forum: Introduce yourself
Topic: Photomicrographer - Hello from Calgary, Alberta
Replies: 8
Views: 3016

Re: Photomicrographer - Hello from Calgary, Alberta

Welcome Rob -- I have perused your website quite a bit previously. Your photomicography is certainly top-notch, and I really appreciate your articles. What I like best is your spirit of sharing, and I thank you for all you've posted. I've been watching eBay closely for inverted microscopes for about...
by KurtM
Wed Nov 14, 2018 3:25 am
Forum: Pictures and Videos
Topic: Spiral shell?
Replies: 6
Views: 1064

Re: Spiral shell?

Besides being very pretty, the fascinating aspect of your image is that it looks as though the animal may still be extant in it. I really don't know a lot about foram biology/morphology (please excuse me, I'm largely uneducated), except that they're more or less similar to testate amoebae. It's real...
by KurtM
Tue Nov 13, 2018 4:01 am
Forum: Pictures and Videos
Topic: Spiral shell?
Replies: 6
Views: 1064

Re: Spiral shell?

A lovely image too, I might add...
by KurtM
Mon Nov 12, 2018 4:49 am
Forum: Pictures and Videos
Topic: Spiral shell?
Replies: 6
Views: 1064

Re: Spiral shell?

Looks like a foram to me.
by KurtM
Mon Nov 12, 2018 4:48 am
Forum: Pictures and Videos
Topic: Moss Dissection
Replies: 33
Views: 4473

Re: Moss Dissection

Very cool, from macro to micro.
^^^ what he said. Thanks for a very interesting post!
by KurtM
Mon Nov 12, 2018 4:44 am
Forum: Pictures and Videos
Topic: Biddulphia pulchella (provisional ID)
Replies: 3
Views: 850

Re: Biddulphia pulchella (provisional ID)

Very nice images of a very nice subject! Here ya go: :ugeek:
by KurtM
Fri Nov 09, 2018 4:15 am
Forum: Pictures and Videos
Topic: Red Marine alga
Replies: 4
Views: 912

Re: Red Marine alga

Such wonderful images! You have a way of making me lonely for my scopes when I'm away from home...
by KurtM
Sat Oct 27, 2018 12:38 am
Forum: Specimens, samples and slides
Topic: Phase contrast mounting kit
Replies: 5
Views: 2430

Re: Phase contrast mounting kit

^^^ Yeah, that. :?:
by KurtM
Fri Oct 26, 2018 12:28 am
Forum: Introduce yourself
Topic: Hello from Toronto
Replies: 4
Views: 2444

Re: Hello from Toronto

Aslan wrote:I am also an amateur astronomer and photographer so I guess I love all things optical.
That's a very similar resume to couple of us here. Welcome!
by KurtM
Fri Oct 26, 2018 12:26 am
Forum: Pictures and Videos
Topic: Oamaru II
Replies: 9
Views: 1578

Re: Oamaru II

If I were you, I'd hang lights on that last one and use it for a holiday decoration. 8-)
by KurtM
Fri Oct 26, 2018 12:24 am
Forum: Pictures and Videos
Topic: Cyanobacteria - Gloeotrichia
Replies: 17
Views: 3953

Re: Cyanobacteria - Gloeotrichia

A pain to image, maybe, but the results are spectacular! Don't be a stranger, your images are always so very nice.
by KurtM
Thu Oct 25, 2018 12:35 am
Forum: Beginner's corner
Topic: Condenser Height Adjustment
Replies: 9
Views: 2568

Re: Condenser Height Adjustment

One of the nice side benefits to having condenser height and field iris properly adjusted is you get a tiny, brilliant spot of light on the slide illuminating the precise point on the slide you're looking. This is useful for marking coverslips with a fine tip Sharpie to locate individual targets.
by KurtM
Wed Oct 24, 2018 1:54 am
Forum: Pictures and Videos
Topic: Oamaru New Zealand Fossil Diatoms
Replies: 15
Views: 1930

Re: Oamaru New Zealand Fossil Diatoms

That's no ordinary AO Series 4, my friend ... that is a Series 4 with the hottest glass AO ever made (I think, and would love to be corrected if mistaken), and with Rod at the controls.

Lovely -- any secret source of extra cool sample material to brag about? Looking forward to more...
by KurtM
Wed Oct 24, 2018 1:48 am
Forum: Beginner's corner
Topic: Condenser Height Adjustment
Replies: 9
Views: 2568

Re: Condenser Height Adjustment

I think I get all this stuff pretty well, but how I would love to sit in on one of your workshops! Or spend an afternoon with Apo... Thank you so much for so generously and consistently sharing your knowledge and experience, gentlemen! I hereby confer upon you both the highly coveted Uber Geek emoti...
by KurtM
Sat Oct 20, 2018 12:22 am
Forum: Home-made microscope adaptations
Topic: Reviving an AO 735 illuminator
Replies: 9
Views: 4079

Re: Reviving an AO 735 illuminator

Ah yes, the old 735 is a perfectly lovely lamp! 8-)
by KurtM
Fri Oct 19, 2018 2:45 pm
Forum: Pictures and Videos
Topic: Wet Spell in West Texas
Replies: 6
Views: 1201

Re: Wet Spell in West Texas

the soil looks like it contains much sticky clay, muddy when wet then cracked when dried up. Like the bottom of a swamp ? So was it a long-term puddle ? Very little clay is present in the very thin and sparse loamy topsoil there, and there is no cracking of the ground - you must be seeing grass bla...