Search found 108 matches

by tgss
Sun Mar 29, 2020 11:39 pm
Forum: Off Topic
Topic: Micscape online Magazine
Replies: 28
Views: 4463

Re: Micscape online Magazine

+1 re: MichaelG's post.

I have had some problems with some of the articles Mr. Smith has published on Micscape in the past. I think the current article is the most problematic to date.
Tom W
by tgss
Sat Mar 28, 2020 7:04 pm
Forum: Pictures and Videos
Topic: Viridiraptor
Replies: 4
Views: 105

Re: Viridiraptor

Beautifully done sinabro. Thanks for sharing.
Tom W.
by tgss
Sat Mar 28, 2020 2:03 pm
Forum: Specimens, samples and slides
Topic: Whole Mount Insect Slide Preparation Part 2
Replies: 7
Views: 128

Re: Whole Mount Insect Slide Preparation Part 2

Hi Antoni
+1 re: daruosha's post, and don't worry about the delay - we appreciate the time and trouble you have taken to put this together.
Tom W
by tgss
Tue Mar 24, 2020 11:48 am
Forum: Miscellaneous
Topic: Large SEM of Paralia sulcata
Replies: 7
Views: 131

Re: Large SEM of Paralia sulcata

Think not what you can't see that the SEM can, but what you can see that you couldn't before you had a light microscope.
Tom W.
by tgss
Sun Mar 22, 2020 3:54 pm
Forum: Pictures and Videos
Topic: Whole Mount Insect Slide Preparation
Replies: 5
Views: 187

Re: Whole Mount Insect Slide Preparation

Thank you AntoniScott. Very interesting video. Really good to see these things done rather than just reading a description which, no matter how detailed, can never capture the nuances. Looking forward to part 2!
Tom W.
by tgss
Fri Mar 20, 2020 11:43 am
Forum: Miscellaneous
Topic: animal-without-mitochondria
Replies: 4
Views: 3929

Re: animal-without-mitochondria

Thanks for the link 75. Very interesting article.
Tom W.
by tgss
Thu Mar 19, 2020 4:29 pm
Forum: Pictures and Videos
Topic: Toxarium undulatum
Replies: 13
Views: 834

Re: Toxarium undulatum

Amazing! That last image really shows the "undulatum" feature very well.
Tom W.
by tgss
Thu Feb 20, 2020 8:45 pm
Forum: Pictures and Videos
Topic: Trachyneis aspera (Girdle view)
Replies: 8
Views: 1307

Re: Trachyneis aspera (Girdle view)

Ahhhh... thank you 75RR. Of course they are bees, now that I look at them more closely :cry: :oops: They still seem familiar, but I'll just put that down to my continuing decline into senility.
Tom W.
by tgss
Thu Feb 20, 2020 1:40 pm
Forum: Pictures and Videos
Topic: Trachyneis aspera (Girdle view)
Replies: 8
Views: 1307

Re: Trachyneis aspera (Girdle view)

Another beaut 75RR... very nicely done.
Changing the topic slightly, can you tell us about your little fly logo? I have this strong feeling I've seen it before somewhere, possibly in connection with a mathematical problem, but that might just be my geriatric mind wandering!
Tom W.
by tgss
Mon Feb 17, 2020 12:18 pm
Forum: Pictures and Videos
Topic: Pine stem cross section
Replies: 10
Views: 1714

Re: Pine stem cross section

I'm with Wes. Let's hear the details. Very nice result.
Tom W.
by tgss
Fri Feb 14, 2020 12:49 pm
Forum: Pictures and Videos
Topic: Surirella gemma
Replies: 10
Views: 2943

Re: Surirella gemma

Wonderful image. That 63x just never wears out!
Tom W.
by tgss
Sun Feb 09, 2020 12:20 pm
Forum: Introduce yourself
Topic: Hello from Ontario,Canada.
Replies: 6
Views: 2277

Re: Hello from Ontario,Canada.

Welcome scottybee from another Ontarian. I'm sure you'll find this a worthwhile place to hang out.
Tom W.
by tgss
Thu Feb 06, 2020 12:22 pm
Forum: Pictures and Videos
Topic: Micrographs in Black & White
Replies: 22
Views: 3297

Re: Micrographs in Black & White

Excellent!!!!!!!!!!!!!!!!!
Tom W
by tgss
Tue Jan 28, 2020 3:22 pm
Forum: Specimens, samples and slides
Topic: Best adhesive for glass to plastic and glass to glass
Replies: 5
Views: 1359

Re: Best adhesive for glass to plastic and glass to glass

Depending on your intended use, if you decide to try silicone sealant, you should be careful about which type you use. Most sealants intended for household use, e.g. bathtub sealant etc., are compounded with antifungals, which can be harmful to living organisms. There are sealants made without these...
by tgss
Sat Jan 04, 2020 9:01 pm
Forum: Pictures and Videos
Topic: Acridine orange adventures
Replies: 9
Views: 1005

Re: Acridine orange adventures

Awesome shots Wes!
tgss
by tgss
Sun Dec 29, 2019 11:49 pm
Forum: Pictures and Videos
Topic: Daisy flower bud cross section - Bob's first paraffin embedding
Replies: 9
Views: 817

Re: Daisy flower bud cross section - Bob's first paraffin embedding

Very nicely done Bob. I'll definitely be following you along on this journey.
Tom W.
by tgss
Thu Dec 12, 2019 12:17 pm
Forum: Pictures and Videos
Topic: Navicula lyra
Replies: 15
Views: 1712

Re: Navicula lyra

Caught up with this one rather late. Amazing detail and contrast and beautifully sharp. Very well done - again.
Tom W.
by tgss
Thu Dec 05, 2019 12:23 pm
Forum: Pictures and Videos
Topic: Stauroneis phoenicenteron (COL-DIC)
Replies: 4
Views: 642

Re: Stauroneis phoenicenteron (COL-DIC)

Not a diatomist by any means, but based on many other images I've seen I'd say the COL is definitely an improvement.
Tom W.
by tgss
Wed Dec 04, 2019 3:09 pm
Forum: Pictures and Videos
Topic: Stauroneis phoenicenteron (COL-DIC)
Replies: 4
Views: 642

Re: Stauroneis phoenicenteron (COL-DIC)

Very nice 75RR. I note that your 63x doesn't seem to be wearing out with use - still producing just as good images as ever! The lower image in particular is very good.
Tom W.
by tgss
Fri Nov 29, 2019 12:48 pm
Forum: My microscope
Topic: When You're Hot, You're Hot. Looky Here What I Got!
Replies: 7
Views: 2151

Re: When You're Hot, You're Hot. Looky Here What I Got!

+1 on the Ortho-Illuminators - very, very sexy!
Tom W
by tgss
Thu Nov 28, 2019 1:17 pm
Forum: Resources (online, books etc.)
Topic: The Freshwater Microscopist by Tony Pattinson
Replies: 7
Views: 3976

Re: The Freshwater Microscopist by Tony Pattinson

Thanks for the update on Part 4 of the series Kurt. I have the other three, but wasn't aware that Tony had released a fourth. As you stated, the books are a terrific source of thoroughly practical ideas and procedures, with attractive and informative illustrations. Tony is a bit of a Vickers M41 fan...
by tgss
Sun Nov 17, 2019 2:10 am
Forum: Miscellaneous
Topic: Unlocking Nature's Secrets: The Serengeti Rules:
Replies: 5
Views: 1512

Re: Unlocking Nature's Secrets: The Serengeti Rules:

It's apparently available on Amazon Prime video, to rent - $4.99, or buy - $5.99, if that helps anyone.

Tom W.
by tgss
Tue Nov 12, 2019 7:20 pm
Forum: Camera systems and imaging
Topic: HA2307 HDMI industrial camera
Replies: 48
Views: 14558

Re: HA2307 HDMI industrial camera

Hi 75RR I'm beginning to feel guilty about hijacking Radazz's post with this but... I agree that you need to know what the pixel size really is in order to compare it with what is needed. I guess, for me at least, the discussion boils down to the recognition that, in order to figure out what pixel s...
by tgss
Tue Nov 12, 2019 6:20 pm
Forum: Camera systems and imaging
Topic: HA2307 HDMI industrial camera
Replies: 48
Views: 14558

Re: HA2307 HDMI industrial camera

Hi 75RR I think the misunderstanding is because I used an unfortunate term, pixel density, since it implies pixels/mm^2, or some such, whereas I was using it the sense of "number of pixels/sensor". That's because I'm an idiot. :oops: The intent was to get around the issue of different sized sensors ...
by tgss
Tue Nov 12, 2019 4:34 pm
Forum: Camera systems and imaging
Topic: HA2307 HDMI industrial camera
Replies: 48
Views: 14558

Re: HA2307 HDMI industrial camera

The pixel size should be 3 or 4 times smaller that the projected size of the object you are trying to capture. See link and the extract below: https://www.lumenera.com/blog/understanding-resolution-in-digital-microscopy please note that when they say: " largest possible pixel size required to fully...
by tgss
Tue Nov 12, 2019 3:12 pm
Forum: Camera systems and imaging
Topic: HA2307 HDMI industrial camera
Replies: 48
Views: 14558

Re: HA2307 HDMI industrial camera

I've been a little perplexed while following this thread. The idea that resolution depends primarily on pixel size is the idea that's causing me problems. I admit that "primarily" has not been explicitly stated, but seems to be implicit in the arguments. If carried to extremes this would imply that ...
by tgss
Wed Nov 06, 2019 12:58 pm
Forum: About the website, the magazine and this forum
Topic: Vetting newcomers
Replies: 15
Views: 4420

Re: Vetting newcomers

Well... I'm gobsmacked! I couldn't understand what was going on when I read billbilt's posts - thought there must have been some kind of malfunction on the forum, until I read the following posts and realised it was for real. Very, very disappointed - really undermines the forum and leaves a bad tas...
by tgss
Thu Oct 24, 2019 7:18 pm
Forum: Microscopes and optics
Topic: Taking apart Jena Docuval
Replies: 2
Views: 1055

Re: Taking apart Jena Docuval

Very unfortunate that this instrument was trashed Piter_. I wish you every success in restoring it to fully working condition.
Tom W.
by tgss
Sun Oct 20, 2019 10:31 pm
Forum: Pictures and Videos
Topic: Marine Alga
Replies: 7
Views: 1440

Re: Marine Alga

What mrsonchus said :!: .

Tom W.
by tgss
Sat Oct 19, 2019 10:42 pm
Forum: Microscopes and optics
Topic: Determining the molecular organisation of biological materials using polarized light microscopy
Replies: 6
Views: 1594

Re: Determining the molecular organisation of biological materials using polarized light microscopy

I used a 10x objective, 10x eyepiece and 1.6x optovar magnification, both images were cropped from stacked photos. Later I can take some images of a stage micrometer and calculate the number of pixels per graduation to generate a scale bar. Thank you, Wes, for the clarification. No need to generate...