Those are freaking awesome!
...and so much more interesting than dead diatoms!
Search found 402 matches
- Fri May 10, 2024 3:27 am
- Forum: Pictures and Videos
- Topic: A selection of marine diatoms from the Gulf of Thailand
- Replies: 5
- Views: 165
- Wed May 01, 2024 5:21 am
- Forum: Pictures and Videos
- Topic: Soy sauce in DIC
- Replies: 2
- Views: 151
Re: Soy sauce in DIC
Off-the-shelf soy sauce contains all manner of undissolved particulates and large impurities that will manifest themselves under high magnification when the solution dries up. Your only other option is to find laboratory-grade soy sauce, probably from Japan, made by a 114 year old semi bearded lady ...
- Wed May 01, 2024 5:11 am
- Forum: Pictures and Videos
- Topic: Some of the life found on just one slide
- Replies: 4
- Views: 158
Re: Some of the life found on just one slide
Seriously lively! Were you using a well slide?
- Thu Apr 04, 2024 7:19 pm
- Forum: Pictures and Videos
- Topic: Marine Foraminifera on the move
- Replies: 10
- Views: 963
Re: Marine Foraminifera on the move
There we go..... now THAT looks nice!
- Wed Apr 03, 2024 6:02 pm
- Forum: Pictures and Videos
- Topic: Marine Foraminifera on the move
- Replies: 10
- Views: 963
Re: Marine Foraminifera on the move
Cool video.
Does your rig not support darkfield?
Does your rig not support darkfield?
- Fri Mar 29, 2024 9:37 pm
- Forum: Beginner's corner
- Topic: Is this a good cleaning kit?
- Replies: 1
- Views: 2490
Re: Is this a good cleaning kit?
Those are crap.
Invest in a good quality blower used by serious photographers, kimwipes, and good quality lens cloths, and a jug of high-purity ethanol. Oh, and foam Q-tips. Zeiss has a good tutorial on keeping "The Clean Microscope" somewhere on line.
Invest in a good quality blower used by serious photographers, kimwipes, and good quality lens cloths, and a jug of high-purity ethanol. Oh, and foam Q-tips. Zeiss has a good tutorial on keeping "The Clean Microscope" somewhere on line.
- Fri Mar 29, 2024 9:31 pm
- Forum: My microscope
- Topic: score!
- Replies: 4
- Views: 3243
Re: score!
Did you make that rubber powered Fokker? As for cleaning your scope, I'd use %96 ethanol and cotton rags on anything not transmitting and reflecting light. Isopropyl alcohol always seems to just smear films around. Also, if you're serious about a total dismantling and thorough cleaning, I'd spray th...
- Fri Mar 29, 2024 9:18 pm
- Forum: Home-made microscope adaptations
- Topic: Looking for a NICE dust cover
- Replies: 25
- Views: 7915
Re: Looking for a NICE dust cover
I had them make me a cover for my scope, and one for my flat top. Total cost about US$12. Holy cow, that's a screaming deal. Charlie, you're absolutely right. Someone a while back also mentioned running an air ionizer in a scope room, to knock down airborne particulates, which makes a ton of sense....
- Fri Mar 29, 2024 9:05 pm
- Forum: Microscopes and optics
- Topic: Mystery Carl Zeiss Microscope
- Replies: 6
- Views: 1130
Re: Mystery Carl Zeiss Microscope
You're right. That is an unusual scope. In fact, I wasn't even aware that Zeiss made wall-mounted microscopes.
- Sat Jan 27, 2024 4:52 am
- Forum: Pictures and Videos
- Topic: Under the 1/24 ice , mesocosm collection.
- Replies: 35
- Views: 4464
Re: Under the 1/24 ice , mesocosm collection.
It's cool that you have such easy access to a lively source of microbiology!
- Sun Jan 21, 2024 5:05 pm
- Forum: Microscopes and optics
- Topic: NIKON PlanApo 100X/140 oil that is a PlanApo 60X/140 oil
- Replies: 121
- Views: 10619
Re: NIKON PlanApo 100X/140 oil that is a PlanApo 60X/140 oil
I have never taken apart that unit.....however, see if the lower barrel isn't just a cover and see if it unscrews. It may hide a very small lock screw.
- Sat Jan 20, 2024 12:52 am
- Forum: Miscellaneous
- Topic: SPOT THE DIFFERENCE game
- Replies: 9
- Views: 2818
Re: SPOT THE DIFFERENCE game
Hey this is good sport! Thanks for the challenge!
- Sat Jan 20, 2024 12:20 am
- Forum: Microscopes and optics
- Topic: Zeiss Cardiodid condenser fails with high NAs - peeling paint ?
- Replies: 40
- Views: 16183
Re: Zeiss Cardiodid condenser fails with high NAs - peeling paint ?
This is transmitted darkfield. The checkered scale bar is 10µm X 3µm, calculated as a fraction of the field of view, taken with a Zeiss stage micrometer. The dark line separating the striae looks to be about 200nm-300nm. Within each striae is a honeycomb network of puntae(?), of which there appear t...
- Fri Jan 19, 2024 11:52 pm
- Forum: Microscopes and optics
- Topic: NIKON PlanApo 100X/140 oil that is a PlanApo 60X/140 oil
- Replies: 121
- Views: 10619
Re: NIKON PlanApo 100X/140 oil that is a PlanApo 60X/140 oil
I have just just completed the dissasembly of an oil soaked 20x Nikon lens. It may have been used in an inverted scope in its previous life. When I got it, the image it produced was atrocious, yet there didn't seem to be anything obviously wrong with it; complete oil saturation and no bubbles looks ...
- Thu Jan 18, 2024 6:41 pm
- Forum: Microscopes and optics
- Topic: Zeiss Cardiodid condenser fails with high NAs - peeling paint ?
- Replies: 40
- Views: 16183
Re: Zeiss Cardiodid condenser fails with high NAs - peeling paint ?
It would be interesting to compare our darkfield systems. I've cobbled together a similar system to look at diatoms at high magnification. Using glycerin immersion above and below my slide, at 100x, I can get about 200nm resolution, but only with very specific kinds of diatoms: only the thinnest lay...
- Wed Jan 17, 2024 7:05 am
- Forum: Specimens, samples and slides
- Topic: Doing Diatoms - part 2
- Replies: 38
- Views: 49214
Re: Doing Diatoms - part 2
Printed photos of diatoms do a poor job of conveying their beauty and complexity, unless you have an SEM . After wrestling with the problem of how best to show off these things, I thought it best to arrange within some sort of organic-looking large format framework: Screenshot 2024-01-16 233913.jpg ...
- Tue Jan 16, 2024 1:13 am
- Forum: Pictures and Videos
- Topic: Fossil diatom from Oamaru
- Replies: 33
- Views: 34328
Re: Fossil diatom from Oamaru
Wow! Aren't you lucky! I'll assume that the pumps came with it!
I'd have to throw out both the clothes dryer and washing machine if I'd have any hope at running all of that equipment in my basement.
I bet incidentals add up fast; sputtering sources are no joke!
I'd have to throw out both the clothes dryer and washing machine if I'd have any hope at running all of that equipment in my basement.
I bet incidentals add up fast; sputtering sources are no joke!
- Mon Jan 15, 2024 9:25 pm
- Forum: Pictures and Videos
- Topic: Fossil diatom from Oamaru
- Replies: 33
- Views: 34328
Re: Fossil diatom from Oamaru
Is that Carl ZEISS EVO LS 10 Lab6 your own or do you have regular access to it?
I've often wondered about a used table-top SEM.... seems that for the cost of a decent modern optical system, you could get lucky with a basic SEM.
I've often wondered about a used table-top SEM.... seems that for the cost of a decent modern optical system, you could get lucky with a basic SEM.
- Mon Jan 15, 2024 9:12 pm
- Forum: Beginner's corner
- Topic: A stupid question: any good practice in cover slip cleaning?
- Replies: 7
- Views: 2132
Re: A stupid question: any good practice in cover slip cleaning?
Dirty Cover slips are my bane. Preliminary cleaning: Wipe with a kleenex and generously applied methanol or isopropyl alcohol Final wet cleaning: Use a lens cloth and optical-grade lens cleaner Final Air cleaning: Blow off the contact surface with canned air before applying to slide. Lens cloth is f...
- Sun Jan 07, 2024 2:12 am
- Forum: Pictures and Videos
- Topic: Advices to improve my pictures
- Replies: 11
- Views: 8084
Re: Advices to improve my pictures
That Canon 5D is a pretty good camera and will capture almost anything you throw at it. It's useful to judge your images based on what you plan to do with them. It's hard to take lousy images at low magnification for viewing on your phone. On the other hand, a poster-sized print at 300dpi of somethi...
- Sun Jan 07, 2024 1:49 am
- Forum: Beginner's corner
- Topic: Inverted scope
- Replies: 14
- Views: 14178
Re: Inverted scope
There's gotta be something to that configuration for Nikon to build their entire super-resolution line around it, in addition to their line-up of conventional inverted scopes . Screenshot 2024-01-06 183033.jpg I've made my own shallow deep-well slides to look at squishy things under my conventional ...
- Tue Jan 02, 2024 6:31 pm
- Forum: Miscellaneous
- Topic: Neurotransmitters
- Replies: 5
- Views: 4664
Re: Neurotransmitters
This post smells like clickbait.
I am NOT clicking a link to an external site, especially not facebook.
Furthermore, it is simply impolite to force a user to leave this site via link, with zero clue regarding the content of the link.
I am NOT clicking a link to an external site, especially not facebook.
Furthermore, it is simply impolite to force a user to leave this site via link, with zero clue regarding the content of the link.
- Sat Dec 30, 2023 6:14 pm
- Forum: Microscopes and optics
- Topic: Revolving nose piece
- Replies: 8
- Views: 4584
Re: Revolving nose piece
To clarify: petrographic microscopes have x-y alignment adjusters only for the objectives, critical for precise concerted alignment of rotating stage, Betrand/Amici lens, and z axis of a crystal, commonly used for mineral ID and and limited fabric orientation. Otherwise, conventional viewing allows ...
- Fri Dec 22, 2023 6:22 am
- Forum: About the website, the magazine and this forum
- Topic: New trouble uploading images...
- Replies: 19
- Views: 17505
Re: New trouble uploading images...
"The image file you tried to attach is invalid."
"The image file you tried to attach is invalid."
"The image file you tried to attach is invalid."
"The image file you tried to attach is invalid."
"The image file you tried to attach is invalid."
"The image file you tried to attach is invalid."
"The image file you tried to attach is invalid."
- Tue Dec 19, 2023 6:09 pm
- Forum: Introduce yourself
- Topic: Hello From Louisiana
- Replies: 1
- Views: 3175
Re: Hello From Louisiana
Nick.... Keep your eye out for Online and local goodwill auctions University and college surplus sites cloudy nights website classifieds Craigslist and estate sales I don't have a lot experience with branded starter scopes but I've read of some experiences where cheap units are more frustration than...
- Sun Dec 17, 2023 11:43 pm
- Forum: Specimens, samples and slides
- Topic: Doing Diatoms - part 2
- Replies: 38
- Views: 49214
Re: Doing Diatoms - part 2
Basic dark field is definitely an awesome technique for plankton and diatoms, especially with low RI media like formalin or methanol. I'm holding off on the DIC until I mount legitimate slides. These, by the way, are all stacked images from about 4-8 photos, heavily cleaned up in photoshop, though n...
- Sun Dec 17, 2023 11:05 pm
- Forum: Specimens, samples and slides
- Topic: Doing Diatoms - part 2
- Replies: 38
- Views: 49214
Re: Doing Diatoms - part 2
Funny you should mention... Getting plankton samples across borders is certainly not an issue if you're a research institution and have miles of associated paperwork. I had to improvise: Screenshot 2023-12-17 155923.jpg Each little bottle is a concentrated sample of microscopic stuff from several pl...
- Sun Dec 17, 2023 10:52 pm
- Forum: Specimens, samples and slides
- Topic: Doing Diatoms - part 2
- Replies: 38
- Views: 49214
Re: Doing Diatoms - part 2
Once at sea, I had to bribe a deck hand to get me out on the water in the zodiac while everyone else was under the water. Screenshot 2023-12-17 154304.jpg The trick is playing out the line while keeping tension and making sure the boat travels straight at never more than 1-2 knots. Measuring depth i...
- Sun Dec 17, 2023 10:37 pm
- Forum: Specimens, samples and slides
- Topic: Doing Diatoms - part 2
- Replies: 38
- Views: 49214
Re: Doing Diatoms - part 2
A recent scuba trip to the Red Sea meant a plankton net upgrade, including a quantitative way to measure net depth when towing. First, a proper net requires shaping, ribs for strength, and endless scouring of the internet for images: Screenshot 2023-12-17 152156.jpg Followed by a lot of frustrating ...
- Sun Dec 17, 2023 10:16 pm
- Forum: Pictures and Videos
- Topic: Loxophyllum ciliate
- Replies: 8
- Views: 2564
Re: Loxophyllum ciliate
nice..... what's the field of view?
....and some freshwater diatoms too.
....and some freshwater diatoms too.