Search found 81 matches

by pbraub
Wed Jun 26, 2019 2:56 am
Forum: Equipment Discussions
Topic: Modding a Nikon MM-11
Replies: 17
Views: 2183

your last link is broken (for me)
is this the publication you were referring to?
https://www.osapublishing.org/oe/abstra ... 5-14-16652
by pbraub
Tue Jun 25, 2019 11:30 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Blue Mud Dauber - Opinions?
Replies: 11
Views: 1826

Hi Zed,

these are both great images. Thank you for sharing! I like the first one better - the steel grey of the eye complements the metallic blue better than the uv fluorescent light blue. The shadow doesnt bother me at all.

Kind regards
Peter
by pbraub
Mon Jun 24, 2019 11:11 pm
Forum: Photography Through the Microscope
Topic: INTEL 88SDG
Replies: 3
Views: 548

Hi Michael,

i really like the colors and the forms on this one. super. Thank you for sharing!

Peter
by pbraub
Tue May 28, 2019 11:55 am
Forum: Equipment Discussions
Topic: Use cases for ELWD Condensers
Replies: 8
Views: 1923

Oh sorry i was in a bit of an hurry. The CKX is actually equipped with planfluorite objectives of the same grade as in the ix70. The "horrible" was me reminding my attempts of creating an oblique lighting setup with this condenser. this did not work out because i could not decenter the condenser eno...
by pbraub
Tue May 28, 2019 5:46 am
Forum: Equipment Discussions
Topic: Use cases for ELWD Condensers
Replies: 8
Views: 1923

Hi, Pau is right. The ELWD condensers are used on inverted microscopes. In the lab I work in we use a NA 0.3 elwd condenser with phase contrast on a small scope for checking cell cultures (Olympus CKX41) (this is commonly right next to the incubator in the lab for visual inspection - vitalitiy, cont...
by pbraub
Fri May 17, 2019 8:40 am
Forum: Equipment Exchange
Topic: Shellac ringing cement
Replies: 2
Views: 2326

You can also use (clear) nail varnish. However, it does not look as fancy as ringing cement.

Peter
by pbraub
Mon Apr 29, 2019 1:03 am
Forum: Equipment Exchange
Topic: Olympus condenser DF/Pol/Rheinberg/Oblique insert set
Replies: 7
Views: 2438

This is an interesting piece of equipent! Does this also fit the Swing-Out type condenser (U-SC?)

Kind regards
Peter
by pbraub
Sat Apr 27, 2019 12:50 pm
Forum: Photography Through the Microscope
Topic: Scalariform conjugation in Spirogyra
Replies: 1
Views: 708

Thank you for these nice pictures. I like the last one best - it is so calm and reduced to the essentials. It nearly looks like it could be tiled to infinity.

Peter
by pbraub
Mon Apr 08, 2019 7:28 am
Forum: Photography Through the Microscope
Topic: Various algaes
Replies: 13
Views: 2004

Anne,

I really like the crisp and clean look of your images. Fantastic. Thank you.

However no scalebar this time :-( - i suppose for the sake of art.

Peter
by pbraub
Sun Apr 07, 2019 11:42 pm
Forum: Photography Through the Microscope
Topic: VIS vs FL
Replies: 10
Views: 1635

Mazek,

thank you for the - again - wonderful photos and for the information on your setup!

Cheers
Peter
by pbraub
Sat Apr 06, 2019 11:58 am
Forum: Photography Through the Microscope
Topic: VIS vs FL
Replies: 10
Views: 1635

Maszek, thank you for these impressive images - I can even get the stereo images to fuse in my head (which I have some troubles with usually).

Is the FL pure UV excitation or do you use multiple wavelengths?

Cheers
Peter
by pbraub
Wed Apr 03, 2019 10:33 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: More mass is better right?
Replies: 7
Views: 3722

I know. Thorlabs even advertises their composite breadboards with a technical note stating that more weight is not necessarily better.

However, the thought of doing macro on a running mill makes me smile. I can't help it.
by pbraub
Wed Apr 03, 2019 8:28 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: More mass is better right?
Replies: 7
Views: 3722

ray_parkhurst wrote:Are your vibrations gone?
With the mill on or off that is?
by pbraub
Fri Mar 29, 2019 9:01 am
Forum: Photography Through the Microscope
Topic: Dog Urinary Bladder
Replies: 3
Views: 1288

Bill is rigth, this is definitely gall and not urinary bladder.

In Bills picture the mucosa is expanded by foamy cells (macrophages) under the epithelum. This is called "cholestatosis". Olympusmans pictures show gallbladder without any significant pathological changes.

Peter
by pbraub
Sun Mar 24, 2019 12:59 pm
Forum: Photography Through the Microscope
Topic: Lymph node showing cancer cells
Replies: 3
Views: 964

The small dark cells are lymphocytes of the orginial lymphnote. They form swirling pattern around a germinal center. The cancer cells are the ones with a lighter red-ish color. Note how much more irregular the nuclei are. The lymphocyte nuclei are pretty much uniform where the neoplastic cells have ...