Search found 8207 matches

by 75RR
Tue Dec 29, 2015 6:35 pm
Forum: Pictures and Videos
Topic: Cosmarium
Replies: 8
Views: 2854

Re: Cosmarium

Many thanks Crater Eddie

Pol is indeed a fun and useful arrow to have in one's illumination quiver.
by 75RR
Tue Dec 29, 2015 6:29 pm
Forum: Microscopes and optics
Topic: Latest iteration of my Zeiss Standard
Replies: 13
Views: 6134

Re: Latest iteration of my Zeiss Standard

Many thanks Crater Eddie and charlie. I am very pleased with it.
by 75RR
Tue Dec 29, 2015 6:08 pm
Forum: Microscopes and optics
Topic: Latest iteration of my Zeiss Standard
Replies: 13
Views: 6134

Latest iteration of my Zeiss Standard

Thanks to Charles and the modular design, an arm upgrade has turned my microscope into a Zeiss 18!
It now has a removable turret and though it is not immediately apparent, a 5 objective nosepiece. :)

Image
by 75RR
Tue Dec 29, 2015 3:57 pm
Forum: Pictures and Videos
Topic: Arcella - Testate Amoeba video
Replies: 5
Views: 2069

Re: Arcella - Testate Amoeba video

Nice video.
I was hoping to shoot some stills for a stack, but it was moving and twisting enough that I thought it unlikely to succeed, so shot a video.
That is usually the reason to shoot video, though I do think that some subjects/activities are more suited than others. I like both.
by 75RR
Tue Dec 29, 2015 10:34 am
Forum: Pictures and Videos
Topic: Boring algae, NOT spirogyra
Replies: 8
Views: 2588

Re: Boring algae, NOT spirogyra

All the spirogyra in all of my jars has disappeared, just about all I can find is similar to this, whatever it is. I think the new alga, possibly cladophora, found the present conditions more amenable or as Darwinists might say, less rigorous. Not sure what was meant by punk form , but do not think...
by 75RR
Tue Dec 29, 2015 12:27 am
Forum: Pictures and Videos
Topic: Cosmarium
Replies: 8
Views: 2854

Re: Cosmarium

Many thanks vasselle, rnabholz and JimT
They are also interesting to look at in polarized light to watch the crystals "Dance".


The extra sprinkling of dust particles are what happens when one attempts to clean the sensor with the wrong tool. :(
by 75RR
Tue Dec 29, 2015 12:22 am
Forum: Pictures and Videos
Topic: Diatoms
Replies: 5
Views: 1970

Re: Diatoms

Many thanks rnabholz, JimT and apochronaut
by 75RR
Tue Dec 29, 2015 12:14 am
Forum: Pictures and Videos
Topic: Daphnia Dark Field Focus Thru Video
Replies: 7
Views: 2399

Re: Daphnia Dark Field Focus Thru Video

Very nice. Always enjoy your Darkfield
by 75RR
Mon Dec 28, 2015 7:51 pm
Forum: Pictures and Videos
Topic: Cosmarium
Replies: 8
Views: 2854

Cosmarium

25x * 1.6, 65µm, Brightfield and Oblique, 7 and 5 image stacks in Photoshop

Image Image
by 75RR
Mon Dec 28, 2015 4:58 pm
Forum: Identification help
Topic: Green and yellow organism in Pond sample
Replies: 4
Views: 3160

Re: Green and yellow organism in Pond sample

I thought at first it might be the dreaded polka dot amoeba.
But zzffnn is probably right - with the proviso that the substrate is most likely plastic rather than paper.
by 75RR
Mon Dec 28, 2015 4:50 pm
Forum: Miscellaneous
Topic: Culture media
Replies: 6
Views: 4187

Re: Culture media

I believe Oliver's caution was based on the risk entailed by a process that by its very nature produces high concentrations of random bacteria. Much higher concentrations than one would normally find in an average everyday drop of sampled water.
by 75RR
Mon Dec 28, 2015 12:04 pm
Forum: Resources (online, books etc.)
Topic: Culture methods for invertebrate animals; by Galtsoff, Paul Simon, 1937
Replies: 1
Views: 2297

Culture methods for invertebrate animals; by Galtsoff, Paul Simon, 1937

An old yet interesting book on this subject. https://archive.org/details/culturemethodsfo00galt Extract: "A CULTURE MEDIUM FOR HYDATINA SENTA* Josephine C. Ferris, University of Nebraska BRING to the boiling point in 1oo cc. of water 1 gram of urea crystals, 1 gram of dried blood, and 1 gram of drie...
by 75RR
Mon Dec 28, 2015 11:58 am
Forum: Miscellaneous
Topic: Culture media
Replies: 6
Views: 4187

Re: Culture media

einman's recommended book is available at: https://archive.org/details/culturemethodsfo00galt Skimming through it I found what reads like a witches brew! "A CULTURE MEDIUM FOR HYDATINA SENTA* Josephine C. Ferris, University of Nebraska BRING to the boiling point in 1oo cc. of water 1 gram of urea cr...
by 75RR
Mon Dec 28, 2015 3:11 am
Forum: Beginner's corner
Topic: Water for microcosms? Just a bit of a rant.
Replies: 24
Views: 8860

Re: Water for microcosms? Just a bit of a rant.

I'm collecting lots of rain water today! :D :mrgreen:
Flash flood advisory since yesterday through Monday.
So, did you run out in your birthday suit with a bucket in your hand?
by 75RR
Mon Dec 28, 2015 3:04 am
Forum: Pictures and Videos
Topic: Diatoms
Replies: 5
Views: 1970

Diatoms

25x * 1.6, length between 40µm and 60µm apart from the long one which was 125µm, stacks of 11,10, 3, 2 and 3 in Photoshop Had not come across Diatoms for a while so it was a nice surprise when the first sample of a new sample jar brought these forth. http://i1368.photobucket.com/albums/ag171/mapolog...
by 75RR
Mon Dec 28, 2015 1:06 am
Forum: Pictures and Videos
Topic: Encysted Lapadella (Spiked cyst)
Replies: 5
Views: 1964

Re: Encysted Lapadella (Spiked cyst)

Thanks rnabholz.

Link is to an excellent article that mentions the virtues of Oblique.
http://www.microscopy-uk.org.uk/mag/ind ... -test.html
by 75RR
Sun Dec 27, 2015 7:25 pm
Forum: Pictures and Videos
Topic: Encysted Lapadella (Spiked cyst)
Replies: 5
Views: 1964

Re: Encysted Lapadella (Spiked cyst)

Thanks zzffnn, perhaps one of your contacts has some knowledge of them or more interesting still, does not!
There were 3 active ones, was hoping to catch them leaving the cyst - missed them all.
by 75RR
Sun Dec 27, 2015 4:27 pm
Forum: Introduce yourself
Topic: Hello from Derbyshire, UK
Replies: 2
Views: 2532

Re: Hello from Derbyshire, UK

Welcome Dragon27, ... what microscope and camera adapter I should purchase. The answer to that question depends very much on what areas of microscopy you are interested in, your budget and possibly on how handy you are mechanically. This is a topic that has come up several times, a search through th...
by 75RR
Sun Dec 27, 2015 3:55 pm
Forum: Pictures and Videos
Topic: Encysted Lapadella (Spiked cyst)
Replies: 5
Views: 1964

Encysted Lapadella (Spiked cyst)

25x * 2x, 100µm, Oblique, Olympus E-p2

I have never seen a Spiked Cyst before, has anyone else seen one?

by 75RR
Sat Dec 26, 2015 4:14 pm
Forum: My microscope
Topic: Zeiss Standard gets a new home
Replies: 75
Views: 28680

Re: Zeiss Standard gets a new home

If you remember the instructions in the 60w Illuminator manual - it tells you to aim the illuminator at a wall about 2 or 3 meters away - then move the socket until the filament is in focus (page 3). At this point the element should be focused at the Front Focal Plane when the illuminator is back on...
by 75RR
Sat Dec 26, 2015 3:02 pm
Forum: Pictures and Videos
Topic: Testate amoebae: Arcella
Replies: 10
Views: 4925

Re: Testate amoebae: Arcella

Thanks charlie, here is a link you might find interesting: http://www.arcella.nl/shelled-amoebae
by 75RR
Sat Dec 26, 2015 3:00 pm
Forum: Pictures and Videos
Topic: Achnanthes
Replies: 7
Views: 2812

Re: Achnanthes

Surreal colours
by 75RR
Sat Dec 26, 2015 2:58 pm
Forum: Pictures and Videos
Topic: Elodée Egeria densa
Replies: 8
Views: 2699

Re: Elodée Egeria densa

These are excellent, well done.
by 75RR
Sat Dec 26, 2015 12:40 pm
Forum: Pictures and Videos
Topic: Ostracod
Replies: 2
Views: 1629

Re: Ostracod

Hi Quimico,
good to see you posting an image
can you provide some details on your camera and microscope and settings?
by 75RR
Sat Dec 26, 2015 12:24 pm
Forum: Beginner's corner
Topic: Water for microcosms? Just a bit of a rant.
Replies: 24
Views: 8860

Re: Water for microcosms? Just a bit of a rant.

Obviously roofs are laden with all sorts of airborne pollution and many dormant or living organisms ... No one seems to have mentioned that collecting rainwater from a roof at the end of a heavy storm, when it has basically been washed cleaner, should provide better quality water. It does however e...
by 75RR
Sat Dec 26, 2015 8:26 am
Forum: Beginner's corner
Topic: Water for microcosms? Just a bit of a rant.
Replies: 24
Views: 8860

Re: Water for microcosms? Just a bit of a rant.

(2) I wear plastic (powderless nitrile) gloves when I work with pond water.
Was wondering about that.
Obviously you think it prudent.
I take it you no longer swim in ponds, lakes and rivers? ;)
by 75RR
Sat Dec 26, 2015 8:24 am
Forum: Pictures and Videos
Topic: Vorticella
Replies: 4
Views: 1650

Re: Vorticella

Thanks rnabholz and einman Was chasing Stenostomum at the time, should not have rushed it, particularly with the Oblique. Do find different techniques complement one another, so added it to the Phase. By the way I did download both of the books Bruce recommended. They are quite good. So did I. BHL l...
by 75RR
Fri Dec 25, 2015 10:00 pm
Forum: Pictures and Videos
Topic: Vorticella
Replies: 4
Views: 1650

Vorticella

25x * 1.6, Oblique and Phase, Olympus E-p2

by 75RR
Fri Dec 25, 2015 9:08 pm
Forum: Pictures and Videos
Topic: Gastrotrich + ?
Replies: 13
Views: 3440

Re: Gastrotrich + ?

Thanks einman So what happened or happens to the specimen once you are finished viewing? I tend to put them back, well those that do not miss the sample jar as I pour water on the the slide as I hold it over the jar. Need more hands. In this case though, the slide is back in the slide mailer. Will b...
by 75RR
Fri Dec 25, 2015 8:27 pm
Forum: Pictures and Videos
Topic: Gastrotrich + ?
Replies: 13
Views: 3440

Re: Gastrotrich + ?

Hi actinophrys, thanks for the ID. Subsequently found this link on a Stenostomum search. A taxonomic revision of South American species of the genus Stenostomum O. Schmidt (Platyhelminthes: Catenulida) based on morphological characters https://encrypted.google.com/search?q=Stenostomum+unicolor&tbm=i...