Search found 982 matches

by Radazz
Wed May 15, 2019 4:43 pm
Forum: Illumination Techniques
Topic: Nikon Type S microscope illumination
Replies: 9
Views: 5474

Re: Nikon Type S microscope illumination

Those are pretty scopes. Nice find.
Radazz
by Radazz
Wed May 15, 2019 4:36 pm
Forum: Collecting microscopes and slides
Topic: Zeiss serial numbers
Replies: 9
Views: 10389

Zeiss serial numbers

Does anyone know if there is a serial number list for dating Zeiss microscopes? Interested primarily in Carl Zeiss logo 1950s black standard scopes. Just bought what I believe to be a Standard “junior” from that period. Just started searching for information. I’ll post pictures after it arrives. Loo...
by Radazz
Mon May 13, 2019 8:29 pm
Forum: Specimens, samples and slides
Topic: Tried glycerin to slow down fast movers
Replies: 36
Views: 16620

Tried glycerin to slow down fast movers

Tried glycerin to slow down protozoa. Environmental disaster. What wasn't killed outright, exploding or horribly deformed, looked like this one. (A few were slightly more mobile) The survivors were flattened to the point that all internal functions are shut down. All trichocysts seem to have fired, ...
by Radazz
Mon May 13, 2019 3:17 pm
Forum: Pictures and Videos
Topic: Odd behavior
Replies: 4
Views: 1952

Re: Odd behavior

:D :D :D
by Radazz
Mon May 13, 2019 3:13 pm
Forum: Pictures and Videos
Topic: Micro-Universe Presentation
Replies: 4
Views: 1987

Re: Micro-Universe Presentation

Truly beautiful images!
Radazz
by Radazz
Mon May 13, 2019 2:58 pm
Forum: Pictures and Videos
Topic: Paramecium in POL
Replies: 0
Views: 2073

Paramecium in POL

Olympus IX70 20x POL
Paramecium

Enjoy,
Radazz
by Radazz
Mon May 13, 2019 2:06 am
Forum: Pictures and Videos
Topic: Paramecia doing paramecium stuff
Replies: 6
Views: 1956

Re: Paramecia doing paramecium stuff

I suspect the stock came in with the plants. They were in there for several weeks before the fish.
I will try a control of distilled water and fish food to see if the food contains them, I doubt it but I must remain objective.
by Radazz
Mon May 13, 2019 1:55 am
Forum: Pictures and Videos
Topic: Moscovite
Replies: 1
Views: 1224

Re: Moscovite

Very cool! Almost looks like symbols of some sort.
by Radazz
Sun May 12, 2019 4:35 pm
Forum: Pictures and Videos
Topic: Odd behavior
Replies: 4
Views: 1952

Odd behavior

Any paramecium experts here? Can you explain this behavior?
Olympus IX70 10x Darkfield

Radazz
by Radazz
Sun May 12, 2019 1:07 pm
Forum: Pictures and Videos
Topic: Paramecia doing paramecium stuff
Replies: 6
Views: 1956

Re: Paramecia doing paramecium stuff

Very informative video. What is the volume of the culture ? is it kept indoors or outdoors ? I have a little one gallon tank with a beta living in it. I put a flat rock where any food that goes to the bottom ends up there. I noticed a few paramecium in that debris, so I sucked up all I could with a...
by Radazz
Sun May 12, 2019 1:43 am
Forum: Pictures and Videos
Topic: more beach sand
Replies: 3
Views: 1548

Re: more beach sand

Very nice beautiful images
Radazz
by Radazz
Sun May 12, 2019 1:37 am
Forum: Pictures and Videos
Topic: Paramecia doing paramecium stuff
Replies: 6
Views: 1956

Paramecia doing paramecium stuff

My first really successful paramecium culture.
Lots of conjugation going on and clear views of food funneling down the gullet forming food vacuoles, and the contractile vacuole getting rid of excess water.

Enjoy, Radazz
by Radazz
Sat May 11, 2019 4:23 pm
Forum: Illumination Techniques
Topic: POL, HMC w/analyzer, HMC compared
Replies: 0
Views: 5417

POL, HMC w/analyzer, HMC compared

I wanted to compare these three techniques: Same slide and position. No post processing. Olympus IX70 10x Polarized light and Hoffman Modulation Contrast First Just polarized illumination https://i.postimg.cc/RV5H9XCw/IMG-0007.jpg Here is HMC with a second polarizer as an analyzer https://i.postimg....
by Radazz
Fri May 10, 2019 7:38 pm
Forum: My microscope
Topic: Reichert Zetopan IK
Replies: 13
Views: 7856

Re: Reichert Zetopan IK

Does RetroDiode put a fan on them now? Or is that your improvement?

Mine don’t get too hot. I rest my hand on the one for the Wild Heerbrugg M20 while fine focusin and it never gets more than pleasantly warm.
Radazz
by Radazz
Fri May 10, 2019 7:25 pm
Forum: Illumination Techniques
Topic: Nikon Type S microscope illumination
Replies: 9
Views: 5474

Re: Nikon Type S microscope illumination

Do please.
by Radazz
Fri May 10, 2019 3:28 pm
Forum: Microscopes and optics
Topic: Advice for microscope for microphotography
Replies: 7
Views: 2997

Re: Advice for microscope for microphotography

Welcome to the forum! I’ve found most of the stereo microscopes in my collection move the center of focus when taking photos for stacking.
Picoley will let you align the images while stacking.

I’m sure there are better stacking options out there, but this one does all I’ve needed so far.
Radazz
by Radazz
Thu May 09, 2019 11:41 am
Forum: Pictures and Videos
Topic: Paramecium
Replies: 3
Views: 1504

Re: Paramecium

Sorry, this is the one where I was turning the polarizer.
Same specs as the above video.

Radazz
by Radazz
Thu May 09, 2019 12:41 am
Forum: Pictures and Videos
Topic: porgy roe
Replies: 1
Views: 1076

Re: porgy roe

Very nice!
by Radazz
Thu May 09, 2019 12:36 am
Forum: Pictures and Videos
Topic: Paramecium Division
Replies: 1
Views: 1246

Paramecium Division

This is the second division I watched. The first while I waited for the old slow laptop to start up. In both cases it looked as if there was an attendant individual which helped with the division. Or it could be just a very delectable cloud of bacteria attracting them both. I am of course speculatin...
by Radazz
Wed May 08, 2019 1:37 pm
Forum: Miscellaneous
Topic: Just wondering...
Replies: 0
Views: 3380

Just wondering...

Does anyone know, was Zeiss the first manufacturer to focus by moving the stage up and down as opposed to moving the body?

Just curious,
Radazz
by Radazz
Wed May 08, 2019 12:22 pm
Forum: Beginner's corner
Topic: Inverted vs. Upright Microscopes
Replies: 26
Views: 6998

Re: Inverted vs. Upright Microscopes

These are nice little scopes! I tried one of the smallest glass bottom Petri dishes I could find, and it’s still really unwieldy in the field. Double sized cover slips work well. I’ve found I really only need to invert a prepared slide when using the 40x objective. Very nice for a quick check of a s...
by Radazz
Wed May 08, 2019 12:05 pm
Forum: Identification help
Topic: Beautiful worm
Replies: 2
Views: 1400

Re: Beautiful worm

That’s it exactly. Thanks, 75
by Radazz
Wed May 08, 2019 12:01 pm
Forum: Pictures and Videos
Topic: Paramecium
Replies: 3
Views: 1504

Re: Paramecium

nboyer wrote:Nice video. What are you using for a camera? Cheers. -Norm
Canon EOS 7D first model
Radazz
by Radazz
Tue May 07, 2019 11:54 pm
Forum: Identification help
Topic: Beautiful worm
Replies: 2
Views: 1400

Beautiful worm

Recently cleaned and reset up the aquarium, and got a beta. What food he doesn't eat falls onto a flat quartz rock in the aquarium. This breeds all kinds of nice stuff. I was trying to capture images of paramecium when this fellow showed up. Never seen this one before. The spots are along the length...
by Radazz
Tue May 07, 2019 11:49 pm
Forum: Pictures and Videos
Topic: Paramecium
Replies: 3
Views: 1504

Paramecium

Paramecium 20X HMC
The brightness changes are me rotating the polarizor to demonstrate the effect.
Water level dropped enough to slow her down.

Radazz
by Radazz
Mon May 06, 2019 8:29 pm
Forum: Pictures and Videos
Topic: Spineret of spiny orb weaver spider
Replies: 1
Views: 1164

Spineret of spiny orb weaver spider

Spineret of spiny orb weaver.
Olympus SZ40 1.4x zoom
Mounted in lucite
Image
enjoy,
Radazz
by Radazz
Mon May 06, 2019 6:18 pm
Forum: Illumination Techniques
Topic: Bright field, Darkfield, Phase Contrast and Rheinberg compared
Replies: 2
Views: 5175

Re: Bright field, Darkfield, Phase Contrast and Rheinberg compared

Cool comparison! And very nice images.
Thanks
Radazz
by Radazz
Mon May 06, 2019 6:16 pm
Forum: Illumination Techniques
Topic: Nikon Type S microscope illumination
Replies: 9
Views: 5474

Re: Nikon Type S microscope illumination

There is a company called RetroDiode that makes led illuminators for a lot of classic microscopes. I have one for the Zeiss standard with the tunnel from the back of the base to the field lens, and one for my Wild Heerbrugg M20s. I also use the Zeiss illuminator on my Olympus SZ40 stereoscope. They ...
by Radazz
Mon May 06, 2019 5:59 pm
Forum: My microscope
Topic: Chinese microscope manufacturers overview
Replies: 72
Views: 33319

Re: Chinese microscope manufacturers overview

Not really sure I have a dog in this fight. Before I started collecting microscopes, and began to find the opportunities that go with it, I bought a Chinese student microscope which I learned to take pictures through. I used it quite a bit. Learned a lot about filters and illumination with it. Right...
by Radazz
Fri Apr 26, 2019 11:06 pm
Forum: Pictures and Videos
Topic: Citric Acid - illumination experiment
Replies: 3
Views: 1679

Re: Citric Acid - illumination experiment

Cool image. If memory serves, you also have DIC - maybe on your BX40?? If so, how would you compare the images - if you use the DIC prism to force some color as well? I wish. The BX40 is Phase Contrast. This Hoffman Modulation Contrast scope fell on me from the sky. (Unexpected great trade) DIC is ...