Search found 32 matches

by Chris Dee
Sun Nov 10, 2019 12:53 am
Forum: Identification help
Topic: Polychaeta (marine worm)
Replies: 3
Views: 147

Re: Polychaeta (marine worm)

Lovely video 75RR. Excellent detail, definitely Cthulu ;)
by Chris Dee
Mon Nov 04, 2019 10:30 pm
Forum: Pictures and Videos
Topic: Micro hedgehog
Replies: 10
Views: 275

Re: Micro hedgehog

Cue little fella. :)
by Chris Dee
Mon Nov 04, 2019 10:20 pm
Forum: About the website, the magazine and this forum
Topic: Vetting newcomers
Replies: 15
Views: 510

Re: Vetting newcomers

The Akismet extension allows to run phpBB posts, registrations and forms through the Akismet anti-spam service. https://www.phpbb.com/customise/db/extension/akismet/ Originally developed for preventing spam in Wordpress, but the above phpBB plugin will work here. Here's the Wikipedia entry for Akism...
by Chris Dee
Sun Nov 03, 2019 9:32 pm
Forum: Microscopes and optics
Topic: Need advice before buying first microscope
Replies: 6
Views: 228

Re: Need advice before buying first microscope

Looking forward to seeing some shots from your new microscope, keep us informed as to how you get on.
by Chris Dee
Sun Nov 03, 2019 9:25 pm
Forum: Pictures and Videos
Topic: Stylonychia
Replies: 5
Views: 197

Re: Stylonychia

Thanks mintakax. Its a toothy grin :)
by Chris Dee
Sun Nov 03, 2019 9:22 pm
Forum: Pictures and Videos
Topic: Ciliate in Methylcellulose
Replies: 13
Views: 350

Re: Ciliate in Methylcellulose

Thanks for the info' Charlie, very useful. I like the Relis B.Brown recommendation and will try this ring method out. If I can get it to work well enough it would avoid having to apply MC to the whole sample, my only concern is how much it will elevate the cover slip. I recently bought a batch of ch...
by Chris Dee
Sun Nov 03, 2019 9:07 pm
Forum: Pictures and Videos
Topic: Green Hydra (Chlorohydra viridissima)
Replies: 3
Views: 153

Re: Green Hydra (Chlorohydra viridissima)

Thanks for the feedback 75RR. I agree, not the best colours for the subject, just something a little different. Pink next ;) The tank has a healthy population of green and brown Hydra, this one was rinsed back to its home. Thanks Charlie. I've a floating ring in the tank to keep an area free of duck...
by Chris Dee
Sat Nov 02, 2019 8:36 pm
Forum: Pictures and Videos
Topic: Green Hydra (Chlorohydra viridissima)
Replies: 3
Views: 153

Green Hydra (Chlorohydra viridissima)

Big green from the tank. Experimenting with coloured oblique illumination.

by Chris Dee
Fri Nov 01, 2019 11:15 pm
Forum: Pictures and Videos
Topic: Amoeba hunts for ciliate
Replies: 4
Views: 161

Re: Amoeba hunts for ciliate

Looks good to me timurkhaz, well done, plenty to observe. While high performance objectives and lighting are nice to have, they are not essential IMO.
The filter effects in Shotcut (a free open source video editing program) can also be useful for enhancing footage.
by Chris Dee
Thu Oct 31, 2019 9:06 pm
Forum: Pictures and Videos
Topic: Stylonychia
Replies: 5
Views: 197

Re: Stylonychia

Thanks for the info Bruce!
by Chris Dee
Thu Oct 31, 2019 8:52 pm
Forum: Pictures and Videos
Topic: Stylonychia
Replies: 5
Views: 197

Stylonychia

First one I've encountered that I didn't need to chase around.



Zeiss jena 25x apo. Oblique illumination.
by Chris Dee
Thu Oct 31, 2019 4:44 pm
Forum: Pictures and Videos
Topic: Podocystis adriatica and Cocconeis sp
Replies: 9
Views: 195

Re: Podocystis adriatica and Cocconeis sp

Very nice, congrats.
by Chris Dee
Thu Oct 31, 2019 4:39 pm
Forum: Pictures and Videos
Topic: Amoeba
Replies: 4
Views: 145

Re: Amoeba

Nice catch. Moving at a respectable speed compared to the ones I've seen.
by Chris Dee
Wed Oct 30, 2019 11:50 pm
Forum: Pictures and Videos
Topic: Ciliate in Methylcellulose
Replies: 13
Views: 350

Re: Ciliate in Methylcellulose

In my random testing of household stuff for relaxant properties, salicylic acid also didn't fair well. Conversely if commercial outlets are adding preservatives it does make me wonder about the storage life of diy solutions.
by Chris Dee
Wed Oct 30, 2019 9:07 pm
Forum: Pictures and Videos
Topic: Ciliate in Methylcellulose
Replies: 13
Views: 350

Re: Ciliate in Methylcellulose

I didn't notice any increase in mortality over the base sample water mintakax. There were only a few exhibiting this behaviour over 4 examined slides, all the others were going about their business happily at reduced speed. Purchased from eBay, it was advertised as 'Refined Methylcellulose' from an ...
by Chris Dee
Wed Oct 30, 2019 6:01 pm
Forum: Pictures and Videos
Topic: Ciliate in Methylcellulose
Replies: 13
Views: 350

Re: Ciliate in Methylcellulose

The sample was well mixed but possibly. Perhaps some ciliates find it an irritant?
by Chris Dee
Wed Oct 30, 2019 3:29 pm
Forum: Pictures and Videos
Topic: Ciliate in Methylcellulose
Replies: 13
Views: 350

Ciliate in Methylcellulose

Odd reaction to Methylcellulose of a ciliate (1% solution, 50/50 mix with sample water). Other ciliates on the slide showed normal behaviour, just slowed down as expected. Found others on a second slide also exhibiting this pulsing motion of the oral groove/gullet. Is this normal?

by Chris Dee
Tue Oct 29, 2019 4:11 pm
Forum: Pictures and Videos
Topic: Coleps feeding
Replies: 2
Views: 282

Re: Coleps feeding

First placid one I've encountered also. Usually only hang around if hidden in a clump of detritus. The illumination is oblique using a diy 3d printed patch. Some purple fringing which might be down to using phase contrast objectives, or perhaps a different patch design is needed? Still experimenting...
by Chris Dee
Tue Oct 29, 2019 3:38 pm
Forum: Pictures and Videos
Topic: Wait for it !
Replies: 17
Views: 554

Re: Wait for it !

And always when your finger is on the shutter release. Great vid, thanks for sharing.
by Chris Dee
Tue Oct 29, 2019 3:33 pm
Forum: Specimens, samples and slides
Topic: Disturbing occurrences lately
Replies: 6
Views: 402

Re: Disturbing occurrences lately

apochronaut wrote:
Tue Oct 29, 2019 2:36 pm
Ciliates transmigrate, and with the wisdom of their age, more often than not come back as slime molds, where they frequently encounter politicians going the other way.
That brightened my day some :D
by Chris Dee
Sat Oct 26, 2019 4:37 pm
Forum: Pictures and Videos
Topic: Coleps feeding
Replies: 2
Views: 282

Coleps feeding

Still learning Shotcut video editor, illumination could be better. Apex frankenscope, approx 200x & 600x. Comments/suggestions welcome.

by Chris Dee
Mon Oct 07, 2019 5:14 pm
Forum: Pictures and Videos
Topic: Freshwater shrimp
Replies: 7
Views: 492

Re: Freshwater shrimp

Thanks 75RR! Now all I have to do is remember it, heh.
by Chris Dee
Mon Oct 07, 2019 3:06 pm
Forum: Pictures and Videos
Topic: Freshwater shrimp
Replies: 7
Views: 492

Re: Freshwater shrimp

Hi mintakax. The 10L tank is in a north facing window without any additional lighting. Initially I ran it without a bubbler but it started to pong, so added a bubbler to see if it would help. It worked, but I noticed the algae population fall rapidly after 2 weeks. Changing it to 12/12 seems be the ...
by Chris Dee
Sat Oct 05, 2019 9:53 pm
Forum: Pictures and Videos
Topic: Freshwater shrimp
Replies: 7
Views: 492

Re: Freshwater shrimp

Pic' taken a couple of months ago Bob, started the tank late May. Weed growth has increased since the pic', duck weed covers the entire surface now. Its been as much fun watching the inhabitants through the tank as it has under the microscope :D Bubbler runs 12hrs on 12 off.
IMG_4818.jpg
IMG_4818.jpg (139.48 KiB) Viewed 458 times
by Chris Dee
Sat Oct 05, 2019 1:40 pm
Forum: Pictures and Videos
Topic: Freshwater shrimp
Replies: 7
Views: 492

Freshwater shrimp

Young shrimp trapped under the coverslip. Returned to my critter tank to go about its shrimpy busness.
4x Plan Acro through 3.3x NFK eyepiece, not got around to making a scale overlay yet, sorry. Diy oblique patch.

by Chris Dee
Sat Aug 17, 2019 4:20 pm
Forum: Off Topic
Topic: Symbiosis
Replies: 4
Views: 996

Re: Symbiosis

An interesting article. Symbiosis isn't the norm for fungi, highly intolerant of other colonies. A side effect of their chemical warfare can be very desirable. https://www.ukfungusday.co.uk/blog/fungus-wars The secondary metabolites used in such warfare are being researched actively. Without them we...
by Chris Dee
Thu Aug 15, 2019 8:18 am
Forum: Home-made microscope adaptations
Topic: LED choice. Which one?
Replies: 12
Views: 727

Re: LED choice. Which one?

Thanks for the info' Michael. Conformal testing is beyond my resources. If simple comparative shots show anything worthwhile I'll post the results. Right now I'm busy experimenting with photo tube designs for the scope. I'll post a thread on the lighting mod once complete. Thanks for the helpful sug...
by Chris Dee
Mon Aug 12, 2019 5:27 pm
Forum: Introduce yourself
Topic: Hi from Lancs UK
Replies: 4
Views: 1024

Re: Hi from Lancs UK

Will do Tom. One is an unknown model 1970's monocular Gillett & Sibert, the other a Chinese made Apex trinocular, also model unknown. The Apex came without a photo tube so I'm in the middle of designing/testing/3D printing one to accommodate an Olympus NFK photo eyepiece and mount for DSLR (fun time...
by Chris Dee
Mon Aug 12, 2019 5:08 pm
Forum: Home-made microscope adaptations
Topic: LED choice. Which one?
Replies: 12
Views: 727

Re: LED choice. Which one?

Michael: Thanks and noted. I was hoping there would be an obvious choice but think I'll have to compare both LEDs. I'll do some tests time permitting. I assume a DSLR might be able to do some comparative shots for CRI? Custom WB? Hobbyst46: Thanks also for the suggestions. The finned heatsink I've s...
by Chris Dee
Mon Aug 12, 2019 2:42 pm
Forum: Home-made microscope adaptations
Topic: LED choice. Which one?
Replies: 12
Views: 727

Re: LED choice. Which one?

Thanks Bob, it didn't occur to me that I could use filters (lots to catch up on). As the guts of the present illumination system are coming out, I think I can shoehorn a substantial heatsink into the base for the LED and the semiconductors of the current shunt circuit. I have a spare XHP50 also, so ...