Search found 1970 matches
- Wed Feb 28, 2024 10:30 am
- Forum: Equipment Discussions
- Topic: Source for 1/4 wave filters
- Replies: 4
- Views: 323
Re: Source for 1/4 wave filters
... source found.
- Tue Feb 27, 2024 2:02 pm
- Forum: Equipment Discussions
- Topic: Source for 1/4 wave filters
- Replies: 4
- Views: 323
Re: Source for 1/4 wave filters
Do you need precisely 60mm or at least 60mm? A cheap source would be a 62mm circular polariser with the linear filter removed. I'm out of my league here, filter-wise. I think something between 60 and 55mm would work, but not sure. I'm willing to try of course. I can redesign my rotating slider to a...
- Tue Feb 27, 2024 12:23 pm
- Forum: Equipment Discussions
- Topic: Source for 1/4 wave filters
- Replies: 4
- Views: 323
Source for 1/4 wave filters
Looking for an inexpensive source for (3) 60mm (actual filter diameter) 1/4 wave filters. I tried some Edmund Optics 1/4 film, but it's a bit too 'thin' for my intended purpose.
- Fri Feb 23, 2024 10:30 am
- Forum: Photography Through the Microscope
- Topic: Surirella lacrimula
- Replies: 10
- Views: 552
Re: Surirella lacrimula
Sure makes things more enjoyable when things get setup correctly.
- Fri Feb 23, 2024 10:26 am
- Forum: Photography Through the Microscope
- Topic: Suriella sp.
- Replies: 19
- Views: 592
Re: Suriella sp.
Excellent and a superb job coloring.
- Tue Feb 20, 2024 12:50 pm
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: P. ulysses with the "weird Nikon"
- Replies: 15
- Views: 5825
Re: P. ulysses with the "weird Nikon"
Excellent
- Tue Feb 20, 2024 12:49 pm
- Forum: Equipment Discussions
- Topic: short locking tweezers or other small holders / manipulators? Alligator too harsh, fragile subjects for pins
- Replies: 7
- Views: 465
Re: short locking tweezers or other small holders / manipulators? Alligator too harsh, fragile subjects for pins
I used Chem Sharp a few times but there are other ways to sharpen including electrolysis. Grinding won't get you fine enough.
https://cshprotocols.cshlp.org/content/ ... 9468.short
https://www.youtube.com/watch?v=WvepYAwiKU8
-JW:
https://cshprotocols.cshlp.org/content/ ... 9468.short
https://www.youtube.com/watch?v=WvepYAwiKU8
-JW:
- Mon Feb 19, 2024 7:48 pm
- Forum: Equipment Discussions
- Topic: short locking tweezers or other small holders / manipulators? Alligator too harsh, fragile subjects for pins
- Replies: 7
- Views: 465
Re: short locking tweezers or other small holders / manipulators? Alligator too harsh, fragile subjects for pins
I've never tried what you're asking about, so this may be a moot response. Perhaps a pulled glass needle or a sharpened 0.25mm tungsten wire would work. A couple of photos of tungsten wire.
-JW:
-JW:
- Mon Feb 19, 2024 7:39 pm
- Forum: Photography Through the Microscope
- Topic: Surirella lacrimula
- Replies: 10
- Views: 552
Re: Surirella lacrimula
Hi Jim, Great photo , exceptional details ! How do you like this Nikon 40x 0.95 objective ? BR, Saul Thanks Saul. The Nikon 40x 0.95 CFN PlanApo is the best 40x I have, so I can't complain. My DIC system is limited to 20, 40, and 100 objectives. My Nikon PlanApo CFN 60/1.40 performed poorly with th...
- Mon Feb 19, 2024 10:37 am
- Forum: Photography Through the Microscope
- Topic: Surirella lacrimula
- Replies: 10
- Views: 552
Surirella lacrimula
Slowly attempting to get back into Microscopy after a long hiatus. The slide was provided by Bill Dailey. A little larger image is posted here;
https://squattingdog.smugmug.com/Diatoms/i-Jvrnxxh/A
-JW:
https://squattingdog.smugmug.com/Diatoms/i-Jvrnxxh/A
-JW:
- Fri Feb 16, 2024 9:50 am
- Forum: Photography Through the Microscope
- Topic: Actinoptychus heliopelta(?)
- Replies: 3
- Views: 316
Re: Actinoptychus heliopelta(?)
Thanks Rik. Maybe I'm just expecting too much from the Nikon 'phot' DIC models which use a long shear DIC. An Optiphot in my case.
https://www.samwoosc.co.kr/dic_microscopy.htm
-JW:
https://www.samwoosc.co.kr/dic_microscopy.htm
-JW:
- Thu Feb 15, 2024 4:49 pm
- Forum: Photography Through the Microscope
- Topic: Actinoptychus heliopelta(?)
- Replies: 3
- Views: 316
Re: Actinoptychus heliopelta(?)
... struggling. Seems soft and has lots of artifacts. Just talking to myself. Looks like I've forgotten how to image.
- Thu Feb 15, 2024 2:59 pm
- Forum: Photography Through the Microscope
- Topic: Actinoptychus heliopelta(?)
- Replies: 3
- Views: 316
Actinoptychus heliopelta(?)
I've been working on getting my Optiphot Biological up and running again. It's been a while since I've done much imaging. Note the question mark in the subject. This image stack was done with an old Panasonic GH-3, no relay lens, and projected directly onto the camera sensor.
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-JW:
- Sat Feb 10, 2024 7:49 pm
- Forum: Photography Through the Microscope
- Topic: Some diatoms from Oamaru with 450nm light
- Replies: 6
- Views: 3514
- Wed Feb 07, 2024 3:47 pm
- Forum: Photography Through the Microscope
- Topic: Diatom: Auliscus oamaruensis. Nature mimics art?
- Replies: 4
- Views: 347
Re: Diatom: Auliscus oamaruensis. Nature mimics art?
Absolutely beautiful Steve.
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