Search found 239 matches

by Robert Berdan
Sun Sep 06, 2020 11:27 am
Forum: Photography Through the Microscope
Topic: Moth thorax scales
Replies: 3
Views: 674

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: 534

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: 773

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...
by Robert Berdan
Thu Aug 27, 2020 6:36 pm
Forum: Photography Through the Microscope
Topic: Cell Phones, Dedicated Cameras and DSLRs for Photomicrography
Replies: 6
Views: 995

Cell Phones, Dedicated Cameras and DSLRs for Photomicrography

I have always wanted to know what the best camera was for taking pictures with a microscope and how good cell phones were - so my son and I tested 4 Dedicated microscope cameras: 3 MP Amscope, 5MP Zeiss Axiocam, 5.5 MP Moticam ProS5 Lite and the Rising Cam 20 MP one inch sensor. I compared them to t...
by Robert Berdan
Wed Jul 22, 2020 6:39 pm
Forum: Photography Through the Microscope
Topic: Rotifers
Replies: 10
Views: 1963

Re: Rotifers

Hi David - a very simple technique to hold rotifers in place is to put little dabs of vaseline or vacuum grease on the microscope slide to support the coverslip. I use a syringe to apply very small drops of vacuum grease, then place the coverslip on top and draw water out from under the coverslip us...
by Robert Berdan
Sun Jul 05, 2020 11:18 am
Forum: Photography Through the Microscope
Topic: Chemicals & Pharmaceuticals - Polarised Light
Replies: 13
Views: 2475

Re: Chemicals & Pharmaceuticals - Polarised Light

Thanks for the information that you air dry the solutions on microscope slides. I have tried melting, air drying from different solutions, and evaporation methods with some success. Can you share some the identity of some of the chemicals you are using. I have tested a wide variety of chemicals and ...
by Robert Berdan
Sat Jul 04, 2020 8:37 pm
Forum: Photography Through the Microscope
Topic: Germlings and marine things.
Replies: 11
Views: 1680

Re: Germlings and marine things.

Interesting subjects, wish I had an ocean nearby. The darkfield microscopy really compliments the subjects.
Cheers
RB
by Robert Berdan
Sat Jul 04, 2020 8:35 pm
Forum: Photography Through the Microscope
Topic: Chemicals & Pharmaceuticals - Polarised Light
Replies: 13
Views: 2475

Re: Chemicals & Pharmaceuticals - Polarised Light

HI Karl it would be nice if you shared some information about the chemicals you used, are you melting the crystals or making the slides from solutions and allowing them to air dry?

RB
by Robert Berdan
Sat Jul 04, 2020 8:33 pm
Forum: Photography Through the Microscope
Topic: Rotifers
Replies: 10
Views: 1963

Rotifers

Rotifers are one of my favourite subjects for photomicrography. The turtle rotifer Testudinella patina is particularly interesting and I have been finding lots of them this year. I photograph them using DIC, Darkfield, Bright field, and polarizing microscopy. Below I have attached a few rotifer imag...
by Robert Berdan
Thu Jul 02, 2020 6:39 pm
Forum: Photography Through the Microscope
Topic: Aquatic insect larvae
Replies: 5
Views: 914

Aquatic insect larvae

I have been collecting at local ponds and even though I am searching more for rotifers, ciliates, hydra etc I manage to collect a few insect larvae as well. The photos below were taken using a Zeiss Axioscope low power objectives 2.5X, 5X and 10X objectives and often I need to make panoramas to get ...
by Robert Berdan
Thu Jul 02, 2020 6:09 pm
Forum: Photography Through the Microscope
Topic: Diatom in brightfield & darkfield 42:1
Replies: 5
Views: 863

Re: Diatom in brightfield & darkfield 42:1

Very nice darkfield images. Sometimes home made solutions are the best.
Cheers
RB
by Robert Berdan
Tue Jun 30, 2020 8:51 pm
Forum: Photography Through the Microscope
Topic: Frustulia rhomboides
Replies: 5
Views: 1215

Re: Frustulia rhomboides

Beautiful detail on the Diatom and all in focus.
Very nice
RB
by Robert Berdan
Tue Jun 30, 2020 8:41 pm
Forum: Photography Through the Microscope
Topic: Notodromas monacha
Replies: 5
Views: 937

Re: Notodromas monacha

Nice images of ostracods. I see a lot of them but often leave them. You have don a really nice job of photographing them.
RB
by Robert Berdan
Tue Jun 30, 2020 8:39 pm
Forum: Photography Through the Microscope
Topic: Chemical Mixtures Polarised Light
Replies: 15
Views: 2131

Re: Chemical Mixtures Polarised Light

Very beautiful photomicrographs. It would be nice to know what the chemicals were. Also did you make these crystals by melting, or drying solutions on a slide.

Cheers
Rob
by Robert Berdan
Sun Jun 14, 2020 11:35 am
Forum: Photography Through the Microscope
Topic: Infinite Fluorescence
Replies: 42
Views: 4180

Very Nice photographs

Beautiful images thanks for sharing.
RB