Search found 152 matches

by Gerd
Tue May 30, 2017 1:35 pm
Forum: Photography Through the Microscope
Topic: Freshwater diatoms
Replies: 9
Views: 2080

Hi Charles, wonderful captured zigzag Tabellaria with the perfectly arranged mucilage pads which hold the cells together, I really love it. I wondered, what I find "wrong" with image 2 and 4, now I got it : The DIC contrast is inverted, it seems, the lighting comes from the lower side.... Thanks for...
by Gerd
Mon May 22, 2017 2:25 pm
Forum: Photography Through the Microscope
Topic: PCB with ceramic capacitor
Replies: 7
Views: 2814

PCB with ceramic capacitor

http://www.photomacrography.net/forum/userpix/69_pcb2cap1_1.jpg Another piece of computer PCB multilayer, with SMD ceramic capacitors in cross section. Several capacitor layers are visible here. In this preparation with diamond grinding discs several small parts of the capacitor obviously broke away.
by Gerd
Sat May 13, 2017 2:27 pm
Forum: Photography Through the Microscope
Topic: Multilayer PCB / image with dimensions added
Replies: 8
Views: 1615

http://www.photomacrography.net/forum/userpix/69_PCB2l_1.jpg Thank you very much for all your kind comments. @Mike, 1 mil for the lower copper thickness could be correct. From my measurment this is about 30µm, the upper layer about 35µm, just the thickness of normal one-layer PCBs you use in your h...
by Gerd
Mon May 08, 2017 2:28 pm
Forum: Photography Through the Microscope
Topic: Multilayer PCB / image with dimensions added
Replies: 8
Views: 1615

Multilayer PCB / image with dimensions added

http://www.photomacrography.net/forum/userpix/69_PCB2_1.jpg Recently I've been fiddling around with cutting PCBs into little pieces and take a closer look to the technical details after grinding and polishing. Additionally I have been infected by Charlies invention of UV flashlights for photomicrog...
by Gerd
Tue Mar 28, 2017 12:48 pm
Forum: Photography Through the Microscope
Topic: Trithigmostoma sp silver staining (ciliate)
Replies: 13
Views: 2586

Very cool ! On the last image the dorsal brush is perfectly stained and captured.
by Gerd
Fri Mar 24, 2017 12:52 pm
Forum: Photography Through the Microscope
Topic: Closterium, auto-fluorescence, stereo (red overload!)
Replies: 11
Views: 1928

Hi Charly, woaah, the stereos are absolutely stunning results with your setup, overwhelming indeed. With my filter-cube epi illumination there is a terrible blur all over the details, your images look like confocal images ! With your setup, do you have a visible red blur ? And another question: I gu...
by Gerd
Sat Mar 05, 2016 3:28 pm
Forum: Photography Through the Microscope
Topic: Diatoms on alga
Replies: 15
Views: 2456

Very fine images, Charles ! I love the colours of the Ceramium red algae in combination with the diatom chloroplasts.
Thank you for sharing,
kind regards,

Gerd
by Gerd
Wed Dec 09, 2015 4:08 pm
Forum: Photography Through the Microscope
Topic: Wim van Egmond wins Nikonsmallworld Motion competition
Replies: 15
Views: 2526

Wim van Egmond wins Nikonsmallworld Motion competition

Congratulation to Wim on his first place in Nikonsmallworld video competition !

http://www.nikonsmallworld.com/gallerie ... ompetition

A really nice shot !

Gerd
by Gerd
Sun Dec 01, 2013 4:31 pm
Forum: Photography Through the Microscope
Topic: Cylindrocystis tudium
Replies: 7
Views: 2124

I think this is a simple misreading of the numbers on the plate. 8, 5 and 3 are identically seen, due to the low scan resolution. I think Michael means #5 for his identification, this is M. americana. Please remember, the old taxonomists always tried to find accurate Latin or Greece words to describ...
by Gerd
Fri Nov 29, 2013 2:19 pm
Forum: Photography Through the Microscope
Topic: Cylindrocystis tudium
Replies: 7
Views: 2124

Hi Michael,

how did you ID this one ? Any references ?
I think, this is a Micrasterias, probably M. furcata.
Regards,
Gerd
by Gerd
Wed Nov 27, 2013 12:43 pm
Forum: Photography Through the Microscope
Topic: Astomatous Ciliates living in earthworm guts, image added
Replies: 15
Views: 3995

Thank you all for your nice comments !

@ Carlos : perhaps you might check, if some ciliates leave the worm,
when the worm defecates. I never watched ciliates outside the worm, but
i did not explicitly look for that.

Gerd
by Gerd
Tue Nov 26, 2013 10:12 am
Forum: Photography Through the Microscope
Topic: Astomatous Ciliates living in earthworm guts, image added
Replies: 15
Views: 3995

Here is another image of Anoplphrya sp., living specimen stained with Acridine Orange to show Macronucleus and Micronucleus in Fluorescence. Blue excitation with royal blue Led, Leitz I3 Filtercube. http://www.photomacrography.net/forum/userpix/69_chinak20_1.jpg For the preparation : you can see the...
by Gerd
Mon Nov 25, 2013 3:30 pm
Forum: Photography Through the Microscope
Topic: Astomatous Ciliates living in earthworm guts, image added
Replies: 15
Views: 3995

Thank you very much for the kind comments and questions ! @ Jörgen: that is an interesting question, not completely answered in literature. I think, they are commensalic guests, harmless. I sometimes found worms with about 400 ciliates inside. These worms did not show any indication of harmful paras...
by Gerd
Sun Nov 24, 2013 7:08 am
Forum: Photography Through the Microscope
Topic: Astomatous Ciliates living in earthworm guts, image added
Replies: 15
Views: 3995

Astomatous Ciliates living in earthworm guts, image added

http://www.photomacrography.net/forum/userpix/69_anoplotop_1.jpg This is an astomatous ciliate of the genus Anoplophrya, living in earthworm guts. These strange ciliates live as commensals in the gut of compost worms which can easily be found in your compost heap. The ciliates are completely colorl...
by Gerd
Thu Nov 14, 2013 3:16 pm
Forum: Photography Through the Microscope
Topic: What are these?
Replies: 2
Views: 1013

Very nice shots !
The second one is some kind of desmid, i agree with Michael.
The first one looks like a dividing astomatous ciliate, perhaps
something like Anoplophrya sp.
These ciliates normally live commensalic in worm guts..
You can see the long macronucleus very well..

Gerd