Search found 7291 matches

by 75RR
Sun Sep 27, 2020 3:03 pm
Forum: Pictures and Videos
Topic: Diatom 640X Oblique Illumination
Replies: 41
Views: 4736

Re: Diatom 640X Oblique Illumination

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Very nice!

Perhaps you can walk us through your method. Is it a type of Circular Oblique Lighting (COL)?
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Image
by 75RR
Sun Sep 27, 2020 11:13 am
Forum: Pictures and Videos
Topic: Rotifer
Replies: 7
Views: 147

Re: Rotifer

Very nice videos. The colours (in brightfield) other than the background seem to be spot on, you may be trying to make the background just a little too white, though I agree a yellow tinge can be annoying. I looked up your previous post on your microscope and you seem to be using a 7W, 4000k LED. Ha...
by 75RR
Sat Sep 26, 2020 6:56 am
Forum: Introduce yourself
Topic: hello from France
Replies: 1
Views: 54

Re: hello from France

Hi mikeleon, welcome.

Do you already have a microscope? If so, do post some photos of it in the My microscope section.
by 75RR
Fri Sep 25, 2020 3:25 pm
Forum: Microscopes and optics
Topic: Fitting graticule to Zeiss KPL eyepiece
Replies: 2
Views: 67

Re: Fitting graticule to Zeiss KPL eyepiece

Your eyepiece is incomplete, it is missing the black ring that screws into the bottom which is where the graticule goes.

See table for the size you need.
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by 75RR
Fri Sep 25, 2020 5:02 am
Forum: Beginner's corner
Topic: Advice on decent microscope for aquatic samples
Replies: 14
Views: 372

Re: Advice on decent microscope for aquatic samples

First rule of Ebay is not to rush. Second rule is to comparative shop by looking at the prices items actually sold for To do that you want Advanced Search, the button to the right of the blue search button. Type in item name, tick the Sold Listings box and then press search. Prices of items sold (in...
by 75RR
Thu Sep 24, 2020 6:36 pm
Forum: Beginner's corner
Topic: Advice on decent microscope for aquatic samples
Replies: 14
Views: 372

Re: Advice on decent microscope for aquatic samples

If you do decide to go with a Zeiss Standard, the WL is the top of the range.

It is a beautiful and practical research microscope.

http://www.microscopy-uk.org.uk/mag/art ... iss-WL.pdf
by 75RR
Thu Sep 24, 2020 3:53 am
Forum: Pictures and Videos
Topic: Diatom 640X Oblique Illumination
Replies: 41
Views: 4736

Re: Diatom 640X Oblique Illumination

Very nice images.

Look forward to seeing some photos of your microscope in the My microscope section.
by 75RR
Wed Sep 23, 2020 6:13 pm
Forum: Beginner's corner
Topic: Advice on decent microscope for aquatic samples
Replies: 14
Views: 372

Re: Advice on decent microscope for aquatic samples

I saw an early version of the guide, it has information on dozens of different brands of microscope. It is in effect a very comprehensive guide not only to what is available, both new and used, but also what each microscope brings to the table. Not sure how someone new to microscopy is expected to b...
by 75RR
Tue Sep 22, 2020 1:08 pm
Forum: Pictures and Videos
Topic: Is this a diatom?
Replies: 5
Views: 127

Re: Is this a diatom?

I believe it is, but I can't give you an ID at the moment. Do you know the approximate size?
by 75RR
Tue Sep 22, 2020 9:45 am
Forum: Pictures and Videos
Topic: Spirorbidae
Replies: 0
Views: 50

Spirorbidae

. Think this might be a Spirorbidae worm, provisional ID is open to correction as always Uninvited visitor in the first scene is a nematode attracted to the light. Some reading: Serpulimorph polychaetes http://www.sevin.ru/laboratories/Marine_Invertebrates/rzhavsky/Spirorbidae_and_others_Polychaetes...
by 75RR
Sun Sep 20, 2020 7:35 pm
Forum: My microscope
Topic: Zeiss Opton Stativ W
Replies: 4
Views: 139

Re: Zeiss Opton Stativ W

Lovely microscope!

I imagine you already have this brochure: http://www.science-info.net/docs/zeiss/ ... ochure.pdf
by 75RR
Sun Sep 20, 2020 6:43 pm
Forum: Pictures and Videos
Topic: A few recent findings
Replies: 10
Views: 209

Re: A few recent findings

Nice videos! My favorite is the amoeba, though your unidentified ciliate looks very interesting. Don't suppose you have any footage of it at a higher magnification?
by 75RR
Sat Sep 19, 2020 3:16 pm
Forum: Pictures and Videos
Topic: Alien Microbe Craft
Replies: 1
Views: 61

Re: Alien Microbe Craft

Nice internal views of an Ostracod
by 75RR
Sat Sep 19, 2020 5:47 am
Forum: Pictures and Videos
Topic: Marine nematode
Replies: 6
Views: 141

Re: Marine nematode

Many thanks KD Arvidsson and Wes I don't understand how you make such good stitches, especially of a nematode that I'd expect to jiggle around. Mostly patience. There is an ideal window between a pinned nematode/diatom etc ... and a drying out cover slip. This only works if there is nothing large un...
by 75RR
Fri Sep 18, 2020 9:21 pm
Forum: Miscellaneous
Topic: Emotional Attatchment To Microbes
Replies: 11
Views: 177

Re: Emotional Attatchment To Microbes

Rescuing a slide's denizens can be problematic if one has used oil objectives,

if however one has only used dry objectives then dipping the cover slip and the slide (separate them first),

in the sample jar will return most of them to their new home.
by 75RR
Fri Sep 18, 2020 4:05 pm
Forum: Pictures and Videos
Topic: Frontonia?
Replies: 5
Views: 88

Re: Frontonia?

Very nice!
by 75RR
Thu Sep 17, 2020 4:11 pm
Forum: Pictures and Videos
Topic: Marine nematode
Replies: 6
Views: 141

Re: Marine nematode

Many thanks janvangastel
by 75RR
Thu Sep 17, 2020 12:02 pm
Forum: Pictures and Videos
Topic: Marine nematode
Replies: 6
Views: 141

Marine nematode

Zeiss Plan 40x/0.65, DIC, stitched and stacked in Photoshop, Marine sample, Alboran Sea.

Note damage towards tail, might have occurred when I pressed the cover slip down.
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by 75RR
Wed Sep 16, 2020 5:38 pm
Forum: Pictures and Videos
Topic: Arcella and blue algae
Replies: 2
Views: 80

Re: Arcella and blue algae

Nice catch!

I have seen that before, always assumed it was an accident, cyanobacteria getting itself trapped.

Would be interested to hear if there is another explanation.
by 75RR
Wed Sep 16, 2020 3:57 am
Forum: Introduce yourself
Topic: Intro
Replies: 4
Views: 252

Re: Intro

Perhaps someones else can comment on whether the washer pictured above is original or has been added. Even if very loose the 'flip top' should not flip on its own. Is it seated correctly in the condenser holder? Does the top lens look to be horizontal when in the 'up' position? https://www.youtube.c...
by 75RR
Mon Sep 14, 2020 7:35 am
Forum: Pictures and Videos
Topic: Freshwater Dinoflagellates
Replies: 9
Views: 230

Re: Freshwater Dinoflagellates

Great catch and video. I too thought they were only marine ... thanks for the info!
by 75RR
Sun Sep 13, 2020 8:28 pm
Forum: Beginner's corner
Topic: Microscope hunting
Replies: 14
Views: 1084

Re: Microscope hunting

Congratulations, that looks to be in very nice condition
by 75RR
Sun Sep 13, 2020 2:45 pm
Forum: Resources (online, books etc.)
Topic: looking for illustration/drawing guide
Replies: 1
Views: 121

Re: looking for illustration/drawing guide

Rather than a temporary substitute for a camera, microscopy drawing should be considered an art in its own right, in many cases more useful than a photographic image. Several manufactures offer drawing attachments, you should check to see if one is available for your microscope. http://www.microscop...
by 75RR
Sun Sep 13, 2020 10:08 am
Forum: My microscope
Topic: Need help on decidnig for my (first) microscope
Replies: 2
Views: 283

Re: Need help on decidnig for my (first) microscope

Hi Luka, welcome

Your question is one we regularly get on the forum and has therefore been answered, with slight variations, a number of times.

Look in the Beginner's corner section, some questions and their answers go way back, several years in fact, but they are still worth reading.
by 75RR
Sun Sep 13, 2020 6:06 am
Forum: Introduce yourself
Topic: Intro
Replies: 4
Views: 252

Re: Intro

. If it is level, there is no reason for it to flip on its own. The one I have does not have a washer on the handle, can't recall any having it. You might want to remove it. It would seem to have been subjected to an unsuccessful/unorthodox repair job. If you can't repair it, depending on your locat...
by 75RR
Sat Sep 12, 2020 4:09 pm
Forum: Microscopes and optics
Topic: Can anyone help with identification?
Replies: 13
Views: 315

Re: Can anyone help with identification?

You can start with photos from either side, a left and right profile if you like. 1024 x 1024 pixels at 512 KB max, (can be smaller of course) just drag and drop
by 75RR
Fri Sep 11, 2020 4:52 pm
Forum: Identification help
Topic: egg ???
Replies: 7
Views: 735

Re: egg ???

. Thanks mazo4033 and DonSchaeffer Maybe a gastrotrich egg? That was my first thought but could not find anything similar looking. Perhaps a Brachionus sp. cyst would be another possibility (see d3 in image below) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2662865/ https://external-content.duckduc...
by 75RR
Fri Sep 11, 2020 6:50 am
Forum: Pictures and Videos
Topic: Closterium
Replies: 10
Views: 617

Re: Closterium

Nice catch and image
by 75RR
Fri Sep 11, 2020 6:40 am
Forum: Identification help
Topic: egg ???
Replies: 7
Views: 735

Re: egg ???

Guesstimate around 30µm depth