Search found 4701 matches

by gekko
Tue Mar 14, 2017 1:27 pm
Forum: Pictures and Videos
Topic: Deep Lake Park Diatoms In Phase Contrast
Replies: 10
Views: 4412

Re: Deep Lake Park Diatoms In Phase Contrast

Consistently superb and beautiful images.
by gekko
Tue Mar 14, 2017 1:27 pm
Forum: Pictures and Videos
Topic: Mushroom gills 2x
Replies: 5
Views: 3120

Re: Mushroom gills 2x

Beautiful image.
by gekko
Tue Mar 14, 2017 1:26 pm
Forum: Pictures and Videos
Topic: Oblique Diatoms
Replies: 14
Views: 5221

Re: Oblique Diatoms

Superb, as always!!!
by gekko
Tue Mar 14, 2017 1:24 pm
Forum: Pictures and Videos
Topic: Fossil Actinoptychus
Replies: 14
Views: 6025

Re: Fossil Actinoptychus

Again, exceptional work and amazing detail in the "pores".
by gekko
Tue Mar 14, 2017 1:23 pm
Forum: Pictures and Videos
Topic: Orthoplan's chromosomes
Replies: 14
Views: 5398

Re: Orthoplan's chromosomes

Beautiful work, as usual. Sensor: are you sure you damaged it? Perhaps it would be wise to take it to a camera repair professional to have a look at it. If you did scratch it, I don't think it would not be the sensor itself, as the sensor is covered by a filter, which may be replaceable by Canon or ...
by gekko
Tue Mar 14, 2017 1:16 pm
Forum: Pictures and Videos
Topic: Xanthidium antilopaeum
Replies: 2
Views: 2236

Re: Xanthidium antilopaeum

Very nice.
by gekko
Tue Mar 14, 2017 1:14 pm
Forum: Pictures and Videos
Topic: Cyanobacteria (Oscillatoria) and Algae (Mougeotia)
Replies: 11
Views: 5078

Re: Cyanobacteria and Algae

Nice! And good colors distinguishing the green from the blue-green algae.
by gekko
Tue Mar 14, 2017 1:10 pm
Forum: Pictures and Videos
Topic: Amaryllis pollen.
Replies: 6
Views: 3308

Re: Amaryllis pollen.

Superb!
by gekko
Tue Mar 14, 2017 1:10 pm
Forum: Pictures and Videos
Topic: Gallery of Pollen
Replies: 6
Views: 2837

Re: Gallery of Pollen

Wonderful images of difficult-to-phtography pollen. Both interesting and beautiful.
by gekko
Tue Mar 14, 2017 1:07 pm
Forum: Pictures and Videos
Topic: Wildflower anther and pollen.
Replies: 13
Views: 4919

Re: Wildflower anther and pollen.

Very nice work.
by gekko
Tue Mar 14, 2017 1:03 pm
Forum: Pictures and Videos
Topic: Wildflower pollen
Replies: 9
Views: 3870

Re: Wildflower pollen

Wonderful images of a very difficult subject.
by gekko
Wed Mar 08, 2017 1:27 am
Forum: Pictures and Videos
Topic: Chroococcus sp.
Replies: 4
Views: 2478

Re: Chroococcus sp.

Beautiful!
by gekko
Wed Mar 08, 2017 1:26 am
Forum: Pictures and Videos
Topic: Deep Lake Park Diatoms
Replies: 7
Views: 3412

Re: Deep Lake Park Diatoms

As always, excellent work!
by gekko
Wed Mar 08, 2017 1:25 am
Forum: Pictures and Videos
Topic: Alga
Replies: 9
Views: 3973

Re: Alga

Superb!
by gekko
Wed Mar 08, 2017 1:24 am
Forum: Pictures and Videos
Topic: Testate amoeba (Possibly Difflugia) [?]
Replies: 10
Views: 4734

Re: Testate amoeba (Possibly Difflugia) [?]

Excellent image and beautiful texture.
by gekko
Wed Mar 08, 2017 1:23 am
Forum: Pictures and Videos
Topic: Oedogonium: Zoosporangium
Replies: 6
Views: 2777

Re: Oedogonium: Zoosporangium

Superb images (colors, details, etc.)!
by gekko
Wed Mar 08, 2017 1:22 am
Forum: Pictures and Videos
Topic: Micromollusk - Marine shell
Replies: 12
Views: 5814

Re: Micromollusk - Marine shell

Wonderful images!
by gekko
Wed Mar 08, 2017 1:20 am
Forum: Pictures and Videos
Topic: Alga 100x
Replies: 13
Views: 5254

Re: Alga 100x

Excellent image and beautiful color.
by gekko
Wed Mar 08, 2017 1:19 am
Forum: Pictures and Videos
Topic: Oedogonium: Zoosporangium II
Replies: 6
Views: 2959

Re: Oedogonium: Zoosporangium II

Lovely image.
by gekko
Wed Mar 08, 2017 1:18 am
Forum: Pictures and Videos
Topic: Fossil Actinoptychus
Replies: 14
Views: 6025

Re: Fossil Actinoptychus

Rod, fantastic work! Great images! Colors and all.
Colors: I think charlie g got it almost right-- the regular pattern of the diatoms is in effect a 2-d diffraction grating, and the colors I think are due to the light being diffracted (rather than refracted) by the "grating".
by gekko
Thu Jan 19, 2017 11:22 pm
Forum: Pictures and Videos
Topic: Pediastrum
Replies: 10
Views: 4519

Re: Pediastrum

Many thanks for taking the time to explain in detail. Not much leeway between excitation and emission ranges. Nice sharp cut-off filters.
by gekko
Thu Jan 19, 2017 11:17 pm
Forum: Pictures and Videos
Topic: Stylaria in Darkfield
Replies: 15
Views: 5918

Re: Stylaria in Darkfield

Excellent darkfield in your hands, and a beautiful video.
by gekko
Thu Jan 19, 2017 11:13 pm
Forum: Pictures and Videos
Topic: Cladonia lichen 2x
Replies: 9
Views: 3591

Re: Cladonia lichen 2x

Beautiful image!
by gekko
Thu Jan 19, 2017 11:12 pm
Forum: Pictures and Videos
Topic: Cladocera
Replies: 12
Views: 4012

Re: Cladocera

I agree with BillT: absolutely superb.
by gekko
Thu Jan 19, 2017 1:36 am
Forum: Pictures and Videos
Topic: Diatoms and an Amoeba (perhaps)
Replies: 8
Views: 3854

Re: Diatoms and an Amoeba (perhaps)

Very beautiful images. I think the large round thing that has gobbled up the little algae is an amoeba of genus Thecamoeba but,as always, I may be wrong.
by gekko
Thu Jan 19, 2017 1:32 am
Forum: Pictures and Videos
Topic: More Phase Experimentation - Pics added
Replies: 20
Views: 5665

Re: More Phase Experimentation - Pics added

Superb again (I don't know of a better word). Superb detail, clarity, and resolution.
by gekko
Wed Jan 18, 2017 6:54 pm
Forum: Miscellaneous
Topic: Re-rated bulb life formula
Replies: 26
Views: 10892

Re: Re-rated bulb life formula

For what it's worth, I usually run my 12-V 50-W tungsten halogen lamp at 75% to 90% of rated voltage (according to the microscope's voltmeter). I had it burn out once only, and when I replaced it I noticed no blackening at all. I myself don't care about the color temperature (but maybe I should) bec...
by gekko
Wed Jan 18, 2017 6:33 pm
Forum: Pictures and Videos
Topic: More Phase Experimentation - Pics added
Replies: 20
Views: 5665

Re: More Phase Experimentation

Superb images. Superb work.
by gekko
Tue Jan 17, 2017 5:04 pm
Forum: Pictures and Videos
Topic: POL play
Replies: 5
Views: 2488

Re: POL play

Very nice!