Search found 6194 matches

by 75RR
Tue Oct 22, 2019 3:34 pm
Forum: Pictures and Videos
Topic: Marine Alga
Replies: 7
Views: 136

Re: Marine Alga

Many thanks mintakax and Wes
Any idea what the pink stuff inside is?
I think it is probably small amounts of the red pigment phycobilin

https://en.wikipedia.org/wiki/Phycobilin
by 75RR
Tue Oct 22, 2019 9:52 am
Forum: Beginner's corner
Topic: Am I doing something wrong?
Replies: 8
Views: 106

Re: Am I doing something wrong?

. As has been mentioned, within amateur microscopy, bacteria are not a popular subject. This is not just because they are barely visible and so little can be distinguished apart from their shape, which is of little help in identification, but also because there is so much more out there (or should t...
by 75RR
Tue Oct 22, 2019 5:25 am
Forum: Beginner's corner
Topic: Illuminator for Bausch and Lomb Phase Contrast Microscope
Replies: 5
Views: 78

Re: Illuminator for Bausch and Lomb Phase Contrast Microscope

First I thought I would clean everything (base, optics, lenses, etc.) with alcohol and then I assume there's all sorts of collimation? alignment? Cleaning a new to you microscope that has been around a while is a good idea - zero it so to speak. I mostly use isopropanol and cotton swabs on the lens...
by 75RR
Tue Oct 22, 2019 4:44 am
Forum: Introduce yourself
Topic: Hi just starting in Microscopie Almere The Netherlands
Replies: 6
Views: 132

Re: Hi just starting in Microscopie Almere The Netherlands

I was told to bring at least 350€ for the cheapest used microscope they had and that anything else would be a waste of money and a disappointment That may sound like a lot (it is in fact the average entry fee to this hobby) but that really depends on what they were offering. Don't suppose you remem...
by 75RR
Mon Oct 21, 2019 8:14 am
Forum: Pictures and Videos
Topic: Marine Alga
Replies: 7
Views: 136

Re: Marine Alga

Thanks mrsonchus and tgss ... but what is needed for a start with DIC, re my BX40? Here are a couple of articles worth reading. The first link is shorter and gives a clear explanation of DIC and as a bonus uses an Olympus BX system to explain the components: https://www.microscopyu.com/pdfs/Lasslett...
by 75RR
Sun Oct 20, 2019 8:53 pm
Forum: Pictures and Videos
Topic: Marine Alga
Replies: 7
Views: 136

Marine Alga

Planapo 63x/1.4, DIC, 10µm width, stacked and stitched in Photoshop, Marine sample, Alboran Sea.

Image
by 75RR
Sun Oct 20, 2019 12:32 pm
Forum: Pictures and Videos
Topic: Sequoia gigantensis cross section in Epi-Fluorescence
Replies: 6
Views: 106

Re: Sequoia gigantensis cross section in Epi-Fluorescence

In the 1860s Kaiser Wilhelm ordered a pound of Sequoia gigantensis seeds, fitting to his general mind set. He didn't know that these big trees have tiny seeds and he got a lot of them. They were distributed to different forrest wardens and plants were grown from them. From this time we have a coupl...
by 75RR
Sun Oct 20, 2019 11:06 am
Forum: Camera systems and imaging
Topic: which adapter for a Olympus EP-2
Replies: 0
Views: 54

which adapter for a Olympus EP-2

Looking into getting a Rodagon 80mm 1:4 or a Leica Elmar 90mm / 1:4 (an old one!) to avoid the hot spot I get with the Zuiko 135 using a Zeiss Mipro 63mm Kpl Anyone know what adapter I would need to fit either one on a Olympus E-P2 3/4 camera? Are the threads the same? http://www.mikroskopie-ph.de/K...
by 75RR
Sun Oct 20, 2019 4:44 am
Forum: Pictures and Videos
Topic: Rotifer
Replies: 2
Views: 57

Re: Rotifer

Looks like an open bryozoan statoblast with perhaps something (could be rotifer) within the cavity ...
by 75RR
Sat Oct 19, 2019 6:56 pm
Forum: For forum members who want to buy and sell equipment
Topic: NO LONGER WANTED - Olympus nosepiece adapter
Replies: 9
Views: 404

Re: NO LONGER WANTED - Olympus nosepiece adapter

It's loose when the adapter is removed from the 'scope and I spent a few minutes chasing it around as I dropped it a couple of times... What I would say though is that I doubt very much if it's actually necessary, as the nosepiece fits perfectly without it and is in exactly the same, correct positi...
by 75RR
Sat Oct 19, 2019 2:18 pm
Forum: Pictures and Videos
Topic: Ciliates
Replies: 3
Views: 112

Re: Ciliates

I love ciliates -- Thanks for sharing !
There is a lot to be said for loving something that is abundant - you are unlikely to be lonely ;)

viewtopic.php?f=13&t=5950&p=#p53566
by 75RR
Fri Oct 18, 2019 2:15 pm
Forum: Beginner's corner
Topic: Nikon Plan APO 40x 160 TL in an OMAX (Chinese Microscope) 160 TL?
Replies: 7
Views: 143

Re: Nikon Plan APO 40x 160 TL in an OMAX (Chinese Microscope) 160 TL?

Can I expect a better picture (photograph) resolution from a Nikon Plan APO 40x objective screwed into an OMAX (Chinese Microscope) than the objectives that came with the OMAX microscope? I looked up your system: https://www.amazon.com/OMAX-40X-2500X-Contrast-Trinocular-Microscope/dp/B01CESY1OQ/ref...
by 75RR
Fri Oct 18, 2019 4:30 am
Forum: Pictures and Videos
Topic: Pater noster tractor ruts meiofauna and protists
Replies: 10
Views: 89

Re: Pater noster tractor ruts meiofauna and protists

...please keep your home areas spaces in mind for microscopy collection hikes.
If anyone required proof of the variety of life in seasonally wet areas - they have it now.

Must say the Hydra was a pleasant surprise and desmids are always a bonus.
by 75RR
Fri Oct 18, 2019 4:09 am
Forum: Identification help
Topic: Headbanging, many legs
Replies: 4
Views: 83

Re: Headbanging, many legs

The mouth and head look normal enough to me, but note they are actually the end that points down in the video, not the one you zoom in on.
Thanks actinophrys. On second viewing I see that the movement of the food in the gut is another clue ... I should have gone to Specsavers! :)
by 75RR
Thu Oct 17, 2019 8:20 pm
Forum: Identification help
Topic: Headbanging, many legs
Replies: 4
Views: 83

Re: Headbanging, many legs

Looks like an Oligochaeta worm (note the bristles), in this case it seems as if the head has been damaged.
by 75RR
Thu Oct 17, 2019 8:02 pm
Forum: Pictures and Videos
Topic: Podocystis sp.
Replies: 4
Views: 53

Re: Podocystis sp.

Many thanks mintakax, MicroBob and Wes Would you say it is in fully living condition? Hard to say, the chloroplasts had shrunk a bit and it was not moving, though that in itself is not conclusive as it is an epibiont; and I have seen diatoms with shrunken chloroplasts pottering about. On the other h...
by 75RR
Thu Oct 17, 2019 6:44 pm
Forum: Pictures and Videos
Topic: Pater noster tractor ruts meiofauna and protists
Replies: 10
Views: 89

Re: Pater noster tractor ruts meiofauna and protists

Missed your and your doggies adventures ...

will the Paternoster inundated ruts dry out or remain and freeze?
by 75RR
Thu Oct 17, 2019 6:35 pm
Forum: Pictures and Videos
Topic: Podocystis sp.
Replies: 4
Views: 53

Podocystis sp.

Planapo 63x/1.4, DIC, 60µm length, stacked in Photoshop, Marine sample, Alboran Sea.
by 75RR
Wed Oct 16, 2019 2:58 pm
Forum: Identification help
Topic: SOLVED - It has tentacles and is huge (Hydra)
Replies: 4
Views: 94

Re: It has tentacles and is huge

I would have thought Hydra is somewhat smaller, being immortal and all.
More time to put on weight! ;)
by 75RR
Wed Oct 16, 2019 2:55 pm
Forum: Pictures and Videos
Topic: Licmophora colosalis
Replies: 4
Views: 128

Re: Licmophora colosalis

Thanks Wes, Do you first make the stack and then stitch? Yes, I make the stacks first, then stitch. How many stacks depends on how much overlap I give them. I usually try for at least a 1/3, usually a bit more. I tend to overcompensate a bit as the stitching software can be fussy and it is frustrati...
by 75RR
Wed Oct 16, 2019 4:15 am
Forum: Pictures and Videos
Topic: Mastigamoeba
Replies: 3
Views: 110

Re: Mastigamoeba

. Great catch! Thought you were taking a break from amoebae, glad you haven't. The cilium is so mesmerizing. I wonder what the cilium is used for, it doesn't seem to be involved in locomotion.... perhaps some kind of sensor ? I find it completely incongruous for an amoeba to have a flagelum - which ...
by 75RR
Tue Oct 15, 2019 8:50 pm
Forum: Identification help
Topic: SOLVED - It has tentacles and is huge (Hydra)
Replies: 4
Views: 94

Re: It has tentacles and is huge

Looks like Hydra
by 75RR
Tue Oct 15, 2019 4:16 pm
Forum: Pictures and Videos
Topic: Licmophora colosalis
Replies: 4
Views: 128

Re: Licmophora colosalis

Thanks mintakax, must say that diatoms are pretty amazing. Glass houses, how weird is that!
by 75RR
Tue Oct 15, 2019 4:13 pm
Forum: Pictures and Videos
Topic: Gastrotricha
Replies: 5
Views: 448

Re: Gastrotricha

Thanks mintakax and gastrotrichman, agree they are pretty cool.
by 75RR
Tue Oct 15, 2019 10:46 am
Forum: Pictures and Videos
Topic: Licmophora colosalis
Replies: 4
Views: 128

Licmophora colosalis

Planapo 63x/1.4, DIC, 265µm length, 5 stacks stitched in Photoshop, Marine sample, Alboran Sea.

Linked image 2000 x 476 pixels

If you right click and press View Image you should be able to see it at full size.
.
Image
by 75RR
Tue Oct 15, 2019 4:52 am
Forum: Illumination Techniques
Topic: Diverse views of Pleurosigma on a strew slide
Replies: 8
Views: 318

Re: Diverse views of Pleurosigma on a strew slide

Converted (7) 100X1.3 Pl.Apo oil phase c., 546nm filter, single image.JPG to Black and White
by 75RR
Tue Oct 15, 2019 3:48 am
Forum: Illumination Techniques
Topic: Diverse views of Pleurosigma on a strew slide
Replies: 8
Views: 318

Re: Diverse views of Pleurosigma on a strew slide

Agree #5 i.e. 100X1.3 Pl.Apo oil phase c., single image.JPG is best Are you familiar with David Walker's article: http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artsep08/dw-pa-test.html A must read for everyone. Would have expected #2 i.e. 100X1.3 Planapo Ph3 o...
by 75RR
Tue Oct 15, 2019 3:11 am
Forum: Pictures and Videos
Topic: Stenostomum eats the ciliates
Replies: 7
Views: 161

Re: Stenostomum eats the ciliates

Great catch!
by 75RR
Mon Oct 14, 2019 7:53 am
Forum: Home-made microscope adaptations
Topic: LEGO meets high-end microscopy
Replies: 2
Views: 115

Re: LEGO meets high-end microscopy

Would not have recognized them as LEGO pieces. Mostly blocks in my day.