Search found 26 matches
- Sun Mar 08, 2020 10:10 am
- Forum: Identification help
- Topic: A dinosaur egg
- Replies: 2
- Views: 4169
Re: A dinosaur egg
You are a good man. Thank you !
- Sun Mar 08, 2020 9:21 am
- Forum: Identification help
- Topic: A dinosaur egg
- Replies: 2
- Views: 4169
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 ...
- Sun Mar 01, 2020 8:49 am
- Forum: Identification help
- Topic: Pear-shaped rotifer?
- Replies: 0
- Views: 7023
Pear-shaped rotifer?
Sample from a pond, 100x APS-C 22mm, 5x speed
- Sun Feb 23, 2020 12:33 pm
- Forum: Pictures and Videos
- Topic: Some mosquitoes hatched in my jar
- Replies: 2
- Views: 2249
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...
- Sat Feb 22, 2020 11:25 am
- Forum: Introduce yourself
- Topic: Greetings from Winterthur Switzerland
- Replies: 2
- Views: 3811
Re: Greetings from Winterthur Switzerland
Gruetzi von Genf!
- Sat Feb 22, 2020 10:47 am
- Forum: Pictures and Videos
- Topic: A rather large egg-sack
- Replies: 2
- Views: 2051
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...
- Thu Feb 20, 2020 6:39 pm
- Forum: Pictures and Videos
- Topic: A rather large egg-sack
- Replies: 2
- Views: 2051
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...
- Mon Feb 17, 2020 6:14 pm
- Forum: Pictures and Videos
- Topic: Pine stem cross section
- Replies: 10
- Views: 5924
Re: Pine stem cross section
I can smell it!
Great job, looks damn fine.
Great job, looks damn fine.
- Mon Feb 17, 2020 6:13 pm
- Forum: Pictures and Videos
- Topic: Rotifer Birth
- Replies: 6
- Views: 5465
Re: Rotifer Birth
Woooow! Congrats! That is waaay cool.
- Thu Oct 17, 2019 8:42 pm
- Forum: Identification help
- Topic: Headbanging, many legs
- Replies: 4
- Views: 4125
Re: Headbanging, many legs
Thank you!
- Thu Oct 17, 2019 6:05 pm
- Forum: Identification help
- Topic: Headbanging, many legs
- Replies: 4
- Views: 4125
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
Anybody recognize this thing? Thank you for your help.
Pond water, september, about 20C
40x magnification, aps-c afocal
https://youtu.be/BiO2x-wdyqU
- Thu Oct 17, 2019 5:47 pm
- Forum: My microscope
- Topic: Euromex MB 1051, Canon m6 (projection)
- Replies: 7
- Views: 5254
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...
- Thu Oct 17, 2019 5:36 pm
- Forum: My microscope
- Topic: Euromex MB 1051, Canon m6 (projection)
- Replies: 7
- Views: 5254
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...
- Wed Oct 16, 2019 5:40 pm
- Forum: Introduce yourself
- Topic: Hello from The Netherlands
- Replies: 53
- Views: 27829
Re: Hello from The Netherlands
Dobson?janvangastel wrote: ↑Fri Dec 07, 2018 5:52 pmWhen 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.Simple but good used microscopes sell often for really little money like 20-50€
Mhm
[youtube] https://youtu.be/lYIwlUGOa6o [/youtube]
- Wed Oct 16, 2019 5:17 pm
- Forum: Pictures and Videos
- Topic: Salt, focus stacking
- Replies: 8
- Views: 4360
Re: Salt, focus stacking
This is like planetary astrophoto. 860 stacked ! Damn.
- Wed Oct 16, 2019 5:11 pm
- Forum: Pictures and Videos
- Topic: Stenostomum eats the ciliates
- Replies: 7
- Views: 3559
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!
- 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: 4410
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...
- Wed Oct 16, 2019 4:38 pm
- Forum: Identification help
- Topic: SOLVED - It has tentacles and is huge (Hydra)
- Replies: 4
- Views: 3628
- Wed Oct 16, 2019 2:57 pm
- Forum: My microscope
- Topic: Euromex MB 1051, Canon m6 (projection)
- Replies: 7
- Views: 5254
Re: Euromex MB 1051, Canon m6 (projection)
Is there a particular reason 40mm is preferred for afocal?
- Wed Oct 16, 2019 2:56 pm
- Forum: Identification help
- Topic: SOLVED - It has tentacles and is huge (Hydra)
- Replies: 4
- Views: 3628
Re: It has tentacles and is huge
Thank you. I would have thought Hydra is somewhat smaller, being immortal and all.
- Tue Oct 15, 2019 7:35 pm
- Forum: Identification help
- Topic: SOLVED - It has tentacles and is huge (Hydra)
- Replies: 4
- Views: 3628
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
40x magnification then camera display zoom.
https://youtu.be/hUSlNWKBtUY
- Tue Oct 15, 2019 7:21 pm
- Forum: Introduce yourself
- Topic: Grüetzi
- Replies: 4
- Views: 3641
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...
- Tue Oct 15, 2019 7:19 pm
- Forum: Introduce yourself
- Topic: Grüetzi
- Replies: 4
- Views: 3641
Re: Grüetzi
Here’s the link to the post in the equipment section : viewtopic.php?f=24&t=8185
- Tue Oct 15, 2019 7:14 pm
- Forum: My microscope
- Topic: Euromex MB 1051, Canon m6 (projection)
- Replies: 7
- Views: 5254
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...
- Mon Oct 14, 2019 6:59 pm
- Forum: Introduce yourself
- Topic: Grüetzi
- Replies: 4
- Views: 3641
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...