Search found 982 matches
- Sat Dec 18, 2021 4:19 pm
- Forum: Collecting microscopes and slides
- Topic: [DISSCUSION] - Permanent slide mount(s)
- Replies: 12
- Views: 9250
Re: [DISSCUSION] - Permanent slide mount(s)
I’ve been trying several mediums. And I’ve had the most problems with insect parts. I tried thin UV hardened glue, but it never seemed to fill in completely around the specimen, and it glows in polarized light. Tried clear nail varnish, but it shrinks when drying. Great for sealing cover slips for d...
- Thu Jul 09, 2020 2:48 am
- Forum: Collecting microscopes and slides
- Topic: What b&l model is this?
- Replies: 9
- Views: 6772
Re: What b&l model is this?
Now that you mention it, one was out of alignment (cross-eyed).
I opened the top, and it was obvious how the one prism had moved in the mount.
Easy fix. Changing the bottom prism is a bear, though.
Radazz
I opened the top, and it was obvious how the one prism had moved in the mount.
Easy fix. Changing the bottom prism is a bear, though.
Radazz
- Wed Jul 08, 2020 12:11 pm
- Forum: Collecting microscopes and slides
- Topic: What b&l model is this?
- Replies: 9
- Views: 6772
Re: What b&l model is this?
I have several of these in my collection.
One of them has gotten condensation in that splitter chamber.
When this happens, it becomes the perfect environment for mold.
That one has green between the elements of the bottom prism.
The 16033 stand introduced in the 1950s are the best IMHO.
Radazz
One of them has gotten condensation in that splitter chamber.
When this happens, it becomes the perfect environment for mold.
That one has green between the elements of the bottom prism.
The 16033 stand introduced in the 1950s are the best IMHO.
Radazz
- Tue Jun 30, 2020 6:15 pm
- Forum: Collecting microscopes and slides
- Topic: Zeiss research microscope?
- Replies: 8
- Views: 7294
- Fri Jun 26, 2020 11:05 am
- Forum: My microscope
- Topic: Flat Field Dynazoom Operational
- Replies: 14
- Views: 7505
Re: Flat Field Dynazoom Operational
I have one of these from the medical school. Mine is the single knob version.
I agree they are a little ‘under-lit’.
The one I have doesn’t perform as well as a 1959 Dynoptic in the collection.
Probably needs some tuning, but I have higher priorities at this time.
Nice looking stand!
Radazz
I agree they are a little ‘under-lit’.
The one I have doesn’t perform as well as a 1959 Dynoptic in the collection.
Probably needs some tuning, but I have higher priorities at this time.
Nice looking stand!
Radazz
- Fri Jun 26, 2020 10:52 am
- Forum: Collecting microscopes and slides
- Topic: Zeiss research microscope?
- Replies: 8
- Views: 7294
Re: Zeiss research microscope?
Welcome information, as always, Apo.
I had another brass Zeiss objective in the parts box, so I’m watching the Bay to see if the other two float by.
Not a daily sight, I’m sure.
I’m building up another Axioskop first.
Radazz
I had another brass Zeiss objective in the parts box, so I’m watching the Bay to see if the other two float by.
Not a daily sight, I’m sure.
I’m building up another Axioskop first.
Radazz
- Thu Jun 25, 2020 9:36 pm
- Forum: Collecting microscopes and slides
- Topic: Zeiss research microscope?
- Replies: 8
- Views: 7294
Re: Zeiss research microscope?
Thank you for the catalogs as well, 75
- Thu Jun 25, 2020 9:32 pm
- Forum: Collecting microscopes and slides
- Topic: Zeiss research microscope?
- Replies: 8
- Views: 7294
Re: Zeiss research microscope?
Thanks, Charles.
That helps a lot.
Jim
That helps a lot.
Jim
- Thu Jun 25, 2020 6:24 pm
- Forum: Collecting microscopes and slides
- Topic: Zeiss research microscope?
- Replies: 8
- Views: 7294
Zeiss research microscope?
Here’s an interesting Carl Zeiss Jena microscope. I can find almost no info about it in English. My best guess would be 1920 to 1930, based on when American manufacturers switched from brass to rhodium or chromium or whatever Zeiss and Bosch and Lomb used. Spenser crowed about rhodium. I can’t belie...
- Wed Jun 24, 2020 2:12 pm
- Forum: Pictures and Videos
- Topic: Experiment with sidelight
- Replies: 6
- Views: 3362
Re: Experiment with sidelight
Interesting. What was your light source?
Jim
Jim
- Thu Jun 04, 2020 9:38 am
- Forum: Home-made microscope adaptations
- Topic: Labofot 2 lamp house
- Replies: 3
- Views: 3234
Re: Labofot 2 lamp house
Thank you,
Jim
Jim
- Wed Jun 03, 2020 6:16 pm
- Forum: Home-made microscope adaptations
- Topic: Labofot 2 lamp house
- Replies: 3
- Views: 3234
Labofot 2 lamp house
Has anyone with a 3D printer made a lamp house for a Nikon Labophot 2?
Hardest part to find for a restoration.
Thanks in advance,
Radazz
Hardest part to find for a restoration.
Thanks in advance,
Radazz
- Fri Jan 10, 2020 9:15 pm
- Forum: Collecting microscopes and slides
- Topic: 1880 B&L investigator in use
- Replies: 3
- Views: 4590
Re: 1880 B&L investigator in use
Hi Radazz, beautiful instrument and great photo! The quality of the micro photo is completely on the same level as what is shown here from much more modern instruments - very astonishing. The microscope design looks fairly modern. I have a Seibert microscope of the same age and it has a parallelogr...
- Fri Jan 10, 2020 3:24 pm
- Forum: Collecting microscopes and slides
- Topic: 1880 B&L investigator in use
- Replies: 3
- Views: 4590
1880 B&L investigator in use
Playing on a rainy day B&L investigator Period slide of blowfly sucking mouth parts. https://i.postimg.cc/T3Knp331/ABD0707-E-8812-4671-AAE0-D97-C26-BAA9-A0.jpg The setup https://i.postimg.cc/MKPy6Qxg/E84-B714-A-BAE1-4392-BFFB-E5852012-A684.jpg Cell phone shot Interesting plumbing Enjoy Radazz
- Thu Jan 09, 2020 2:58 pm
- Forum: Illumination Techniques
- Topic: LED vs. Halogen test
- Replies: 7
- Views: 6312
Re: LED vs. Halogen test
I bought a retro fit set from an auction site. Polarizer sized to sit on the field lens, and an analyzer that drops into the nose piece above the objectives.
Radazz
Radazz
- Mon Jan 06, 2020 11:09 pm
- Forum: Illumination Techniques
- Topic: LED vs. Halogen test
- Replies: 7
- Views: 6312
Re: LED vs. Halogen test
Radazz, I like very much this comparison ! thanks for posting ! Was the LED white (6500K) ? was the LED light filtered ? On my microscope, equipped with a retroDiode white LED, I use a KR12 warming filter to reduce the bluish-violet tint somewhat. 6500k yes.the first one. Don’t have such a filter. ...
- Mon Jan 06, 2020 9:58 pm
- Forum: Illumination Techniques
- Topic: LED vs. Halogen test
- Replies: 7
- Views: 6312
LED vs. Halogen test
Here’s a direct comparison. Zeiss Standard MD500 5mp eyepiece camera ToupView (some frequency problems) Illumination LED - RetroDiode Zeiss Standard replacement illuminator Halogen - Wild Heerbrugg Hal lamp with transformer Both fit into a tunnel on the back of the base. 100x Antique slide Fossil Di...
- Mon Jan 06, 2020 3:29 pm
- Forum: Pictures and Videos
- Topic: Salt mix
- Replies: 18
- Views: 9185
Re: Salt mix
Very nice, and cool colors!
Radazz
Radazz
- Mon Jan 06, 2020 3:26 pm
- Forum: Illumination Techniques
- Topic: LED vs. Halogen
- Replies: 15
- Views: 9293
Re: LED vs. Halogen
Would be interested to see a side by side comparision of the same slide under LED and Halogen lighting if possible This article is helpful but the images are small: http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artjan14/dw-lightcompare.html To me, some of the...
- Sat Jan 04, 2020 5:26 pm
- Forum: Illumination Techniques
- Topic: LED vs. Halogen
- Replies: 15
- Views: 9293
LED vs. Halogen
After experimenting with LED lighting for a few years now, I must say, for me anyway, LED is very nice for observation, but I get much better photographs with Halogen.
My experience, can’t speak for anyone else.
Radazz
My experience, can’t speak for anyone else.
Radazz
- Sat Jan 04, 2020 5:20 pm
- Forum: Pictures and Videos
- Topic: Amoeba hunts for ciliate
- Replies: 8
- Views: 5196
Re: Amoeba hunts for ciliate
Hoffman Modulation Contrast works great for protists as well. Doesn’t have the halos.
I must admit to wanting a DIC setup, but those don’t fall out of the sky.
Radazz
I must admit to wanting a DIC setup, but those don’t fall out of the sky.
Radazz
- Sat Jan 04, 2020 5:14 pm
- Forum: Pictures and Videos
- Topic: Green Hydra (Chlorohydra viridissima)
- Replies: 7
- Views: 4974
Re: Green Hydra (Chlorohydra viridissima)
Just curious, do green hydra eat other organisms, or just photosynthesize?
Radazz
Radazz
- Sat Jan 04, 2020 5:07 pm
- Forum: Pictures and Videos
- Topic: Pater noster tractor ruts meiofauna and protists
- Replies: 37
- Views: 23571
Re: Pater noster tractor ruts meiofauna and protists
Very cool images, thanks.
Radazz
Radazz
- Sat Dec 14, 2019 2:09 pm
- Forum: Specimens, samples and slides
- Topic: A source for diatoms
- Replies: 11
- Views: 7592
- Thu Dec 12, 2019 1:56 pm
- Forum: Pictures and Videos
- Topic: Ascorbic acid
- Replies: 2
- Views: 2523
- Wed Dec 11, 2019 4:50 am
- Forum: Pictures and Videos
- Topic: Navicula lyra
- Replies: 15
- Views: 7656
Re: Navicula lyra
Very nice and great detail
Radazz
Radazz
- Wed Dec 11, 2019 4:48 am
- Forum: Pictures and Videos
- Topic: Muscles in leg of centipede
- Replies: 5
- Views: 3306
Re: Muscles in leg of centipede
Thank you all so much.
- Tue Dec 10, 2019 7:03 pm
- Forum: Pictures and Videos
- Topic: Alanine POL
- Replies: 2
- Views: 2245
Re: Alanine POL
Thanks, my friend!
- Tue Dec 10, 2019 7:02 pm
- Forum: Pictures and Videos
- Topic: Muscles in leg of centipede
- Replies: 5
- Views: 3306
- Mon Dec 09, 2019 5:18 pm
- Forum: Pictures and Videos
- Topic: Diatom from Pesacola, Florida
- Replies: 6
- Views: 2843
Re: Diatom from Pesacola, Florida
Another nice one, Bob
Radazz
Radazz