Search found 26 matches

by Nerdoid
Sun Mar 08, 2020 10:10 am
Forum: Identification help
Topic: A dinosaur egg
Replies: 2
Views: 1986

Re: A dinosaur egg

You are a good man. Thank you !
by Nerdoid
Sun Mar 08, 2020 9:21 am
Forum: Identification help
Topic: A dinosaur egg
Replies: 2
Views: 1986

A dinosaur egg

Hello everybody, I found what appears to be an egg of sorts, about 2-3mm in length. The outer shell is very pretty, made up of individual cells. Any idea what this coud be? It lives in a jar on my desk in water from a pond and various algae. magnification is 40x, photo taken on an APS-C sensor with ...
by Nerdoid
Sun Mar 01, 2020 8:49 am
Forum: Identification help
Topic: Pear-shaped rotifer?
Replies: 0
Views: 3025

Pear-shaped rotifer?

Sample from a pond, 100x APS-C 22mm, 5x speed

by Nerdoid
Sun Feb 23, 2020 12:33 pm
Forum: Pictures and Videos
Topic: Some mosquitoes hatched in my jar
Replies: 2
Views: 814

Some mosquitoes hatched in my jar

I keep a jar with pond water and some algae and to my surprise I found several mosquito larvae swimming just below the surface, and a few fully grown mosquitoes flying around. Luckily, lid was closed. So I knocked them out with smoke and was happy to see they’re nice and colourful: 2B6E1125-2188-427...
by Nerdoid
Sat Feb 22, 2020 11:25 am
Forum: Introduce yourself
Topic: Greetings from Winterthur Switzerland
Replies: 2
Views: 1582

Re: Greetings from Winterthur Switzerland

Gruetzi von Genf!
by Nerdoid
Sat Feb 22, 2020 10:47 am
Forum: Pictures and Videos
Topic: A rather large egg-sack
Replies: 2
Views: 697

Re: A rather large egg-sack

Oh yes, it lives in my « swamp-in-a-jar ». I carefully placed it back and marked the spot for future observations. But, as with all things living, it seems to have moved and cannot see it anymore (3 days). Maybe they hatched already. Pictures will follow once I figure out how to display files from G...
by Nerdoid
Thu Feb 20, 2020 6:39 pm
Forum: Pictures and Videos
Topic: A rather large egg-sack
Replies: 2
Views: 697

A rather large egg-sack

Brought back some algae from the fishing pond and found a 5mm gelatinous sack with what look like eggs inside: http://drive.google.com/file/d/1fk7qQC-0oWiXPk7Ya-lxtJ03ndn5tS4U/view?usp=drivesdk I wasn’t sure whether it was alive or just some muck, so I slapped a cover glass over it (to have at least...
by Nerdoid
Mon Feb 17, 2020 6:14 pm
Forum: Pictures and Videos
Topic: Pine stem cross section
Replies: 10
Views: 1714

Re: Pine stem cross section

I can smell it!
Great job, looks damn fine.
by Nerdoid
Mon Feb 17, 2020 6:13 pm
Forum: Pictures and Videos
Topic: Rotifer Birth
Replies: 6
Views: 2192

Re: Rotifer Birth

Woooow! Congrats! That is waaay cool.
by Nerdoid
Thu Oct 17, 2019 8:42 pm
Forum: Identification help
Topic: Headbanging, many legs
Replies: 4
Views: 2010

Re: Headbanging, many legs

Thank you!
by Nerdoid
Thu Oct 17, 2019 6:05 pm
Forum: Identification help
Topic: Headbanging, many legs
Replies: 4
Views: 2010

Headbanging, many legs

Rather large in size compared to other living things in the same sample. Not very active.
Anybody recognize this thing? Thank you for your help.

Pond water, september, about 20C
40x magnification, aps-c afocal

https://youtu.be/BiO2x-wdyqU
by Nerdoid
Thu Oct 17, 2019 5:47 pm
Forum: My microscope
Topic: Euromex MB 1051, Canon m6 (projection)
Replies: 7
Views: 2073

Re: Euromex MB 1051, Canon m6 (projection)

The 22mm camera lens leads to the circular image on the sensor with a lot of black around it. This is no big problem but you don't use all camera resolution that is available and have always to do a cutout to use a picture. In video mode some cameras use only a smaller inner part of the sensor imag...
by Nerdoid
Thu Oct 17, 2019 5:36 pm
Forum: My microscope
Topic: Euromex MB 1051, Canon m6 (projection)
Replies: 7
Views: 2073

Re: Euromex MB 1051, Canon m6 (projection)

40mm tends to produce an image with edges that almost hit the edge of the 10x eyepiece's field of view (when focused to infinity), giving you a nice near-optimal rectangle with no vignetting: https://i.imgur.com/NxqNpxF.png This is the entire image through a 10x eyepiece (taken with my phone camera...
by Nerdoid
Wed Oct 16, 2019 5:40 pm
Forum: Introduce yourself
Topic: Hello from The Netherlands
Replies: 53
Views: 14206

Re: Hello from The Netherlands

janvangastel wrote:
Fri Dec 07, 2018 5:52 pm
Simple but good used microscopes sell often for really little money like 20-50€
When I wanted to buy a telescope long ago, I ran into the same problem: which one to buy. But then I decided to build one myself, which is - at least for me - not possible with microscopes.
Dobson?
by Nerdoid
Wed Oct 16, 2019 5:23 pm
Forum: Sandbox
Topic: Mhm
Replies: 0
Views: 3678

Mhm

[youtube] https://youtu.be/lYIwlUGOa6o [/youtube]
by Nerdoid
Wed Oct 16, 2019 5:17 pm
Forum: Pictures and Videos
Topic: Salt, focus stacking
Replies: 8
Views: 1742

Re: Salt, focus stacking

This is like planetary astrophoto. 860 stacked ! Damn.
by Nerdoid
Wed Oct 16, 2019 5:11 pm
Forum: Pictures and Videos
Topic: Stenostomum eats the ciliates
Replies: 7
Views: 1301

Re: Stenostomum eats the ciliates

That is way cool. Think I have similar creatures in my jar but mine are completely transparent. And i’ve never seen them feast like this. Excellent video!
by Nerdoid
Wed Oct 16, 2019 4:41 pm
Forum: Introduce yourself
Topic: I am new to this forum and not that good in english
Replies: 6
Views: 1888

Re: I am new to this forum and not that good in english

;) my interest today is watches - new ones and vintage. I have bought a stereo microscope to work on vintage watches. Maybe I will be interested in ordinary microscope work - time will showe. Ooooh i can bring you business :) Have a Longines pocketwatch from the beginning of last century and a cold...
by Nerdoid
Wed Oct 16, 2019 4:38 pm
Forum: Identification help
Topic: SOLVED - It has tentacles and is huge (Hydra)
Replies: 4
Views: 1707

Re: It has tentacles and is huge

75RR wrote:
Wed Oct 16, 2019 2:58 pm
I would have thought Hydra is somewhat smaller, being immortal and all.
More time to put on weight! ;)
Obesity among protozoa - think we should tell Greta? :D
by Nerdoid
Wed Oct 16, 2019 2:57 pm
Forum: My microscope
Topic: Euromex MB 1051, Canon m6 (projection)
Replies: 7
Views: 2073

Re: Euromex MB 1051, Canon m6 (projection)

Is there a particular reason 40mm is preferred for afocal?
by Nerdoid
Wed Oct 16, 2019 2:56 pm
Forum: Identification help
Topic: SOLVED - It has tentacles and is huge (Hydra)
Replies: 4
Views: 1707

Re: It has tentacles and is huge

Thank you. I would have thought Hydra is somewhat smaller, being immortal and all.
by Nerdoid
Tue Oct 15, 2019 7:35 pm
Forum: Identification help
Topic: SOLVED - It has tentacles and is huge (Hydra)
Replies: 4
Views: 1707

SOLVED - It has tentacles and is huge (Hydra)

Hello everyone - can you help me ID this thing ? Pond water in september (warm).
40x magnification then camera display zoom.

https://youtu.be/hUSlNWKBtUY
by Nerdoid
Tue Oct 15, 2019 7:21 pm
Forum: Introduce yourself
Topic: Grüetzi
Replies: 4
Views: 1484

Re: Grüetzi

I like optics. And fine mechanics. I come from astrophoto so the razor-thin dof in microscopy kills me. Lacking a proper camera accessory, i shoot with a mirrorless APS-C through the eyepiece (does this add magnification?). I’ll post details of the setup in the relevant section. Having great fun id...
by Nerdoid
Tue Oct 15, 2019 7:19 pm
Forum: Introduce yourself
Topic: Grüetzi
Replies: 4
Views: 1484

Re: Grüetzi

Wes wrote:
Mon Oct 14, 2019 7:08 pm
Welcome!

Do post some images of your microscope and related stuff! Sounds interesting :)
Here’s the link to the post in the equipment section : viewtopic.php?f=24&t=8185
by Nerdoid
Tue Oct 15, 2019 7:14 pm
Forum: My microscope
Topic: Euromex MB 1051, Canon m6 (projection)
Replies: 7
Views: 2073

Euromex MB 1051, Canon m6 (projection)

I acquire video through an APS-C sensor 22.3 x 14.9 mm with a 22mm lens f/2 (that’s the Canon m6 with the stock pancake lens). I set it so that it looks through the 10mm eyepiece of the Euromex MB 1051 sporting three objectives: 4/0.10, 10/0.25, 40/0.65 (160/0.17). The camera connects to an iPad whi...
by Nerdoid
Mon Oct 14, 2019 6:59 pm
Forum: Introduce yourself
Topic: Grüetzi
Replies: 4
Views: 1484

Grüetzi

I like optics. And fine mechanics. I come from astrophoto so the razor-thin dof in microscopy kills me. Lacking a proper camera accessory, i shoot with a mirrorless APS-C through the eyepiece (does this add magnification?). I’ll post details of the setup in the relevant section. Having great fun ide...