Search found 73 matches

by piotr
Tue Dec 15, 2009 7:42 pm
Forum: Photography Through the Microscope
Topic: an egg, a cyst or something else?
Replies: 2
Views: 1194

Hi Franz, Possibly, it is a statoblast of bryozoan. The freshwater ones I have seen before looked very similar, but they had little hooks on them. Excellent picture! I quietly enjoy all images you are posting here. http://en.wikipedia.org/wiki/Bryozoa#Reproduction_and_lifecycle http://www.biol.vt.ed...
by piotr
Mon Oct 05, 2009 8:44 pm
Forum: Photography Through the Microscope
Topic: Ascorbic acid
Replies: 7
Views: 1913

Speaking of Super Supplements - coenzyme Q10 is another good candidate for polarized light experiments.
by piotr
Mon Oct 05, 2009 8:40 pm
Forum: Photography Through the Microscope
Topic: Ascorbic acid
Replies: 7
Views: 1913

These are true masterpieces, Charlie. Wonderful!
by piotr
Sun Oct 04, 2009 9:03 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Hatched egg; Tenthredinoidea larva (2 images added)
Replies: 12
Views: 4050

Very cute caterpillar! Beautiful pictures.
by piotr
Fri Oct 02, 2009 8:13 pm
Forum: Photography Through the Microscope
Topic: Loxodes - division
Replies: 1
Views: 858

I have never seen them dividing. Excellent image!
by piotr
Sun Sep 27, 2009 5:21 pm
Forum: Photography Through the Microscope
Topic: One more rotifer
Replies: 0
Views: 635

One more rotifer

This is Floscularia rotifer from the same water sample. http://www.pirx.com/gallery/albums/photomicroscopy/floscularia_darkfield.jpg Olympus 10x/0.40, darkfield, Canon 500D, flash illumination. http://www.pirx.com/gallery/albums/photomicroscopy/floscularia_reduced.jpeg Olympus 20x/0.70, DIC, Canon 5...
by piotr
Sun Sep 27, 2009 4:39 pm
Forum: Photography Through the Microscope
Topic: Midge larva, "polarized" muscles
Replies: 12
Views: 3520

Charlie, these are amazing pictures! Rik, you are right - I am using Tiffen 52mm circular polarizer and it works very well both for polarized light and for DIC. It nicely fits illuminator port of Olympus BH2 stand. The quarter-wave plate is on a bottom of the filter, the linear polarizer part is on ...
by piotr
Sat Sep 26, 2009 7:04 pm
Forum: Photography Through the Microscope
Topic: Freshwater rotifers
Replies: 2
Views: 1277

Freshwater rotifers

Here are pictures of freshwater rotifers I found on a branch of water milfoil from Charles River. I think that the first one is Stephanoceros - at least it is very similar to an example of that genus illustrated in Wim's Micropolitan Museum . The other two pictures show a colony of rotifers, possibl...
by piotr
Sat Sep 26, 2009 6:44 pm
Forum: Photography Through the Microscope
Topic: Various faces of vitamin C
Replies: 3
Views: 1487

Hi Rik, I didn't control the process, just enjoyed the results, trying to scan the slide to find interesting patterns. There are many variables to take care of: concentration of the vitamin C solution, temperature, heating and cooling speed, thickness of preparation, cleanliness of slide, inclusion ...
by piotr
Fri Sep 25, 2009 3:48 pm
Forum: Photography Through the Microscope
Topic: Various faces of vitamin C
Replies: 3
Views: 1487

Various faces of vitamin C

Simple preparation of vitamin C (ascorbic acid) dissolved in water and evaporated on a microscope slide exhibits an amazing variety of different forms when observed under polarized light or DIC illumination. All images taken with Canon Rebel 500D (live view mode), Olympus objective 20x/0.7, DIC. htt...
by piotr
Wed Sep 23, 2009 1:09 pm
Forum: Photography Through the Microscope
Topic: Lacrymaria
Replies: 1
Views: 951

Great shot! These are difficult to photograph, but you captured body and neck in sharp focus.
by piotr
Sun Sep 20, 2009 1:57 pm
Forum: Photography Through the Microscope
Topic: Crystals of uracil
Replies: 7
Views: 1718

Thank you for all comments! :)

Bernhard - one can also find small samples of uracil on eBay. It is a relatively nontoxic chemical.
by piotr
Sat Sep 19, 2009 5:48 pm
Forum: Photography Through the Microscope
Topic: Ant "parts"
Replies: 14
Views: 4276

Spectacular images! Beautiful composition and amazing clarity. These were taken with halogen illuminator in live view silent mode, is that right? Did you use MSPlan objectives? What is a working distance of the 50x objective?
by piotr
Sat Sep 19, 2009 5:41 pm
Forum: Photography Through the Microscope
Topic: Crystals of uracil
Replies: 7
Views: 1718

Crystals of uracil

These are crystals of uracil, one of components of ribonucleic acid, melted and crystallized on a microscope slide. The first two photographs were taken using a polarized light setup. The third picture was taken using DIC with a slider moved to obtain approximately white background. http://www.pirx....
by piotr
Sat Sep 19, 2009 5:40 pm
Forum: Photography Through the Microscope
Topic: Canada balsam dried up on a slide
Replies: 2
Views: 984

Canada balsam dried up on a slide

One of my early, unsuccessful attempts of making microscope slides with Canada balsam. After a few months the entire slide has dried up. Interesting patterns show up in the dried and cracked mountant when observed under DIC illumination. http://www.pirx.com/gallery/albums/other_subjects/balsam01.jpg...