Today, I measured the beard hair and crystal using ImageJ. Measurements in microns (um) are;
Hair = 150um in diameter
Crystal length = 456um
Crystal width = 262um
-JW:
Search found 1992 matches
- Fri Apr 12, 2024 10:08 am
- Forum: Photography Through the Microscope
- Topic: Micro double terminated quartz crystal
- Replies: 9
- Views: 477
- Thu Apr 11, 2024 5:04 pm
- Forum: Photography Through the Microscope
- Topic: Micro double terminated quartz crystal
- Replies: 9
- Views: 477
Re: Micro double terminated quartz crystal
I want to give you a sense of the size of the microscopic quartz crystals found inside a Geode. One of my beard hairs is tied in a knot with a doubly terminated quartz crystal below it. These crystals are microscopic and difficult to transfer around too. They seem to jump around like grasshoppers wh...
- Tue Apr 09, 2024 7:16 pm
- Forum: Equipment Discussions
- Topic: Zerene - Question
- Replies: 3
- Views: 200
Re: Zerene - Question
Thanks for the explanations. Yes, it was shot with a microscope epi DIC.
-JW:
-JW:
- Tue Apr 09, 2024 2:14 pm
- Forum: Equipment Discussions
- Topic: Zerene - Question
- Replies: 3
- Views: 200
Zerene - Question
I know this is a poor image stack, but I'm curious about what's causing the vertical streaks.
-JW:
-JW:
- Mon Apr 08, 2024 2:58 pm
- Forum: Photography Through the Microscope
- Topic: Micro double terminated quartz crystal
- Replies: 9
- Views: 477
Micro double terminated quartz crystal
Over the past several days, I have undertaken the task of photographing a collection of micro-double-terminated quartz crystals discovered within a recently fractured geode. These crystals are exceptionally small, measuring between 0.2 and 0.3 millimeters in length, and are often mistaken for dust. ...
- Sat Apr 06, 2024 9:15 am
- Forum: Equipment Discussions
- Topic: Question about Optiphot and infinity corrected objectives
- Replies: 9
- Views: 342
Re: Question about Optiphot and infinity corrected objectives
I asked a friend about this and he said just mount an infinity head and install infinity objectives in the turret. Since the Optiphot has RMS threads, you can simply go with Olympus RMS or Zeiss objectives, and he suggested using Olympus objectives.
- Sun Mar 31, 2024 2:06 pm
- Forum: Equipment Discussions
- Topic: Made a quick-change objective system for my bellows
- Replies: 6
- Views: 487
- Thu Mar 28, 2024 6:04 pm
- Forum: Photography Through the Microscope
- Topic: Calcite
- Replies: 9
- Views: 1438
Re: Calcite
They were given to me. Not all of them exhibit this result. They won't have birefringence, but regions of different thicknesses will refract differently, resulting in various dispersion colors. Maybe eBay, sorry I don't know. The attached micro-diamond images were generated with my Nikon SMZ-10. -JW:
- Thu Mar 28, 2024 11:38 am
- Forum: General Discussion Forum and Community Announcements
- Topic: Software LoCA analysis
- Replies: 3
- Views: 138
Re: Software LoCA analysis
I wonder if ImageJ has that ability. Maybe ask in their forum.
https://bioimagebook.github.io/chapters ... magej.html
https://forum.image.sc/t/classifying-mi ... rning/9942
-JW:
https://bioimagebook.github.io/chapters ... magej.html
https://forum.image.sc/t/classifying-mi ... rning/9942
-JW:
- Thu Mar 28, 2024 11:34 am
- Forum: Photography Through the Microscope
- Topic: Calcite
- Replies: 9
- Views: 1438
Re: Calcite
Beautiful results - both on rebuilding the microscope and the images. They likely have you grinning ear to ear after all that work. Thanks. When I first got the SC and MET years ago, I was blown away by the images through the bino head. I have a couple of friends who own complete Polyvar SCs with t...
- Wed Mar 27, 2024 6:33 pm
- Forum: Photography Through the Microscope
- Topic: Conus traillii and Engina armillata
- Replies: 0
- Views: 398
Conus traillii and Engina armillata
This was shot with my Wild Heerbrugg M400 Makrozoom using the 1:6 APOzoom and an old Panasonic GH3. I'm trying to get set up and testing my overall configuration and lighting challenges for a series of shell photographs (unless I get distracted). The Engina armillata looks like it had a rough life. ...
- Wed Mar 27, 2024 6:22 pm
- Forum: Photography Through the Microscope
- Topic: Calcite
- Replies: 9
- Views: 1438
Re: Calcite
Hey Chris,
Thanks, I like the first shot too. Yep, you nailed it. They are my favorite scopes, for sure. I can't believe how long it took me to get these working.
-JW:
- Wed Mar 27, 2024 1:03 pm
- Forum: Photography Through the Microscope
- Topic: Calcite
- Replies: 9
- Views: 1438
- Tue Mar 26, 2024 11:06 am
- Forum: Equipment Discussions
- Topic: Made a quick-change objective system for my bellows
- Replies: 6
- Views: 487
Re: Made a quick-change objective system for my bellows
Interesting project. I have an old Pentax 6x7 bellow, but I haven't figured out what to do with it yet. Robert OToole and I were discussing this a few weeks ago. He suggested I contact Raf Camera to make new custom adapters for my Pentax. Robert had new SM2 threaded adapters that replaced the factor...
- Mon Mar 25, 2024 12:25 pm
- Forum: Equipment Exchange
- Topic: Optiphot Bertrand head
- Replies: 7
- Views: 301