Search found 251 matches

by Robert Berdan
Sat Jan 02, 2021 6:07 pm
Forum: Photography Through the Microscope
Topic: Amoeba: Nuclearia delicatula
Replies: 5
Views: 444

Re: Amoeba: Nuclearia delicatula

Hi I liked your video - thanks for sharing.
Rob
by Robert Berdan
Sat Jan 02, 2021 6:06 pm
Forum: Photography Through the Microscope
Topic: A year of microscopy progress!
Replies: 2
Views: 356

Re: A year of microscopy progress!

HI really like the images with the clean backgrounds best. In the first image the background distracts from the Diatoms in my opinion.
Nice images.
Rob
by Robert Berdan
Sat Jan 02, 2021 6:04 pm
Forum: Photography Through the Microscope
Topic: L-Lysine
Replies: 3
Views: 316

Re: L-Lysine

Nice crystals - lysine did not produce crystals for me - what solvent did you use.
Cheers
Rob
by Robert Berdan
Sat Jan 02, 2021 6:03 pm
Forum: Photography Through the Microscope
Topic: Chydoridae (Alonella cfr.)
Replies: 5
Views: 333

Re: Chydoridae (Alonella cfr.)

Hi you have an exceptional image of Chydorus - thanks for sharing.
Rob
by Robert Berdan
Sat Jan 02, 2021 6:01 pm
Forum: Photography Through the Microscope
Topic: Cyanobacteria ID help.
Replies: 2
Views: 323

Re: Cyanobacteria ID help.

Hi it appears to be a species belonging to the genus Anabaena - search Google images and you find the exact species.

Cheers
Rob
by Robert Berdan
Sat Jan 02, 2021 5:57 pm
Forum: Photography Through the Microscope
Topic: Bladderwort (Utricularia sp.)
Replies: 9
Views: 547

Re: Bladderwort (Utricularia sp.)

Very nice images - I also saw the nice article about you in LinkedIn from Nikon.
Cheers
Rob
by Robert Berdan
Sat Jan 02, 2021 5:56 pm
Forum: Photography Through the Microscope
Topic: Curved Crystals - Part 2
Replies: 4
Views: 312

Curved Crystals - Part 2

Last week I posted some polarizing images of curved (flower-like) crystals made using various amino acids, menthol etc. I experimented with a variety of solvents and techniques and would like to share my techniques with others interested. I have posted an article on my web site with an embedded vide...
by Robert Berdan
Tue Dec 29, 2020 11:36 am
Forum: Photography Through the Microscope
Topic: Flower-like crystals
Replies: 4
Views: 396

Re: Flower-like crystals

Hi to find out more information about how to make crystals see my article on my web site: https://www.canadiannaturephotographer.com/crystals_polarizedlight.html - any brightfield microscope can be converted or fitted with polarizing filters one of the light source and one in the head or eyepiece. A...
by Robert Berdan
Mon Dec 28, 2020 8:31 pm
Forum: Photography Through the Microscope
Topic: Flower-like crystals
Replies: 4
Views: 396

Flower-like crystals

One of the most beautiful types of crystals that can be viewed in a polarizing microscope are curved crystals that resemble leaves and flower parts. Round crystals can be made using Vitamin C, but flower-like crystals are often achieved using amino acids most notably Beta-alanine and Glutamine. I te...
by Robert Berdan
Sun Dec 27, 2020 5:09 pm
Forum: Photography Through the Microscope
Topic: Jamin Lebedeff contrast
Replies: 9
Views: 568

Re: Jamin Lebedeff contrast

Very nice Ann - beautiful shape, sharpness and colours.
Cheers
Rob
by Robert Berdan
Sun Dec 27, 2020 5:03 pm
Forum: Photography Through the Microscope
Topic: Christmas Tree Crystals
Replies: 16
Views: 1320

Re: Christmas Tree Crystals

Very nice images especially the last ones. I got my Amino acids at a nutrition supplement shop called Popeyes, they only had one size large! They worked fine, but what I found is that the solvent you use is important - I ended up using 95% Ethanol (Clearview from liquor store) and water (1:1) and th...
by Robert Berdan
Sun Dec 27, 2020 4:40 pm
Forum: Photography Through the Microscope
Topic: strange brew
Replies: 4
Views: 378

Re: strange brew

Very nice Sam - I am just curious what solvent you used for the dissolving the B-alanine and Glutamine. I found only one solvent mix worked for me.
Cheers
Rob
by Robert Berdan
Sun Sep 06, 2020 11:27 am
Forum: Photography Through the Microscope
Topic: Moth thorax scales
Replies: 3
Views: 1044

Re: Moth thorax scales

Very nice images - thanks for sharing.
RB
by Robert Berdan
Sun Sep 06, 2020 11:25 am
Forum: Photography Through the Microscope
Topic: Freshwater Copepods Calanoida and Cyclopoida
Replies: 2
Views: 868

Freshwater Copepods Calanoida and Cyclopoida

Some copepods are common in freshwater ponds, typically those belonging to the Cyclopoida. Calanoida copepods are characterized by long antenna and are less common in my experience, though I catch more of them using a plankton net. When I try to mount the Calanoid copepods they almost always rest on...
by Robert Berdan
Fri Sep 04, 2020 9:00 am
Forum: Photography Through the Microscope
Topic: Rotifers revisited
Replies: 4
Views: 1173

Rotifers revisited

I have been collecting rotifers for almost 50 years and posted an article with images and a movie of rotifers collected in the summer of 2020. The article includes some new information about rotifers and a list of references. In particular I show two colonial rotifers. Rotifers are just the right si...