Search found 432 matches

by Roldorf
Mon Nov 25, 2019 1:07 pm
Forum: Beginner's corner
Topic: thinking out loud here - moral thoughts
Replies: 21
Views: 3310

Re: thinking out loud here - moral thoughts

We all kill and absorb thousands of microbiological organisms weekly if not daily in our bodies, why worry about a few in a microscope petri-dish? These microorganisms would not care (even if they had the ability to care) if they killed you in the process of their invasion of your corpus. Morals are...
by Roldorf
Tue Nov 12, 2019 7:33 pm
Forum: Introduce yourself
Topic: Greetings from the Mississippi Gulf Coast, USA
Replies: 6
Views: 1247

Re: Greetings from the Mississippi Gulf Coast, USA

Welcome to the forum djtrudel

Alan
by Roldorf
Sun Nov 10, 2019 5:42 pm
Forum: Digital processing
Topic: Change lighting on laptop
Replies: 6
Views: 4171

Re: Change lighting on laptop

Try this software control for windows 10:-

https://support.microsoft.com/en-us/hel ... brightness

Hope this helps
Alan

Edit: Works fine on my windows 10 laptop.
by Roldorf
Wed Oct 16, 2019 2:54 pm
Forum: Pictures and Videos
Topic: Pollen. There's lots of it about.
Replies: 100
Views: 67265

Re: Pollen. There's lots of it about.

More from our garden. This plant is on the black list for invasive species in Germany, maybe I should pull it out, only its so pretty (I think I probably have the wrong identification ;) )

Image
by Roldorf
Mon Oct 14, 2019 3:46 pm
Forum: Pictures and Videos
Topic: Pollen. There's lots of it about.
Replies: 100
Views: 67265

Re: Pollen. There's lots of it about.

Almost run out of flowers but found this one in the forest while looking for mushrooms and interesting stones.

Image
by Roldorf
Wed Oct 09, 2019 9:46 pm
Forum: Beginner's corner
Topic: Canon DSLR Adapter for Bresser Infinity Microscope
Replies: 4
Views: 1630

Re: Canon DSLR Adapter for Bresser Infinity Microscope

I also have a Bresser Infinity. I used a spare eyepiece and the adapter from my Bresser USB camera to connect my canon DSLR 4000d camera. See Here:- http://www.microbehunter.com/microscopy-forum/viewtopic.php?f=4&t=8052 . For more information see here. http://www.microbehunter.com/microscopy-forum/v...
by Roldorf
Tue Oct 08, 2019 12:26 pm
Forum: Home-made microscope adaptations
Topic: Home made (Very Basic) Microtome
Replies: 42
Views: 11526

Re: Home made (Very Basic) Microtome

Hi John 'Guten Tag'

Edit:- You could always use google translate to see what they are talking about. Just copy and paste the text into here:-

https://translate.google.com/
by Roldorf
Tue Oct 08, 2019 12:25 pm
Forum: Home-made microscope adaptations
Topic: Home made (Very Basic) Microtome
Replies: 42
Views: 11526

Re: Home made (Very Basic) Microtome

Hi Bob.

There is indeed many plant studies on this site.

See here for a linked list of all the posts on plant microscopy. A virtual Alladin's cave. From A to Z

https://www.mikroskopie-forum.de/index. ... ic=21220.0
by Roldorf
Tue Oct 08, 2019 8:39 am
Forum: Home-made microscope adaptations
Topic: Home made (Very Basic) Microtome
Replies: 42
Views: 11526

Re: Home made (Very Basic) Microtome

HI Bob.
Posts about plant sections seem to get very high numbers of 'views', but I don't think there are many people actually making plant sections. There are not many posts on plants, most seem to be about pond life.

Alan
by Roldorf
Sun Oct 06, 2019 8:11 pm
Forum: Microscopes and optics
Topic: My Latest Microscope
Replies: 9
Views: 2434

Re: My Latest Microscope

Another from the packet of rock samples:

Tigers Eye associated with Hematite.

Image
by Roldorf
Sun Oct 06, 2019 12:46 pm
Forum: Introduce yourself
Topic: Hello from West Chester, Pennsylvania!
Replies: 6
Views: 2564

Re: Hello from West Chester, Pennsylvania!

Hi Gene,

Welcome to the forum. When you decide to sell your extra scopes why don't you give the members here a 'heads up'.
by Roldorf
Fri Oct 04, 2019 5:59 am
Forum: Microscopes and optics
Topic: My Latest Microscope
Replies: 9
Views: 2434

Re: My Latest Microscope

Thanks Scarodactyl for the identification and the very comprehensive explanation of how the various layers form. It came in a packet of rock samples I bought at the mineral borse. I have been trying to use https://www.mineralienatlas.de to search for the samples but as yet have not had much luck. If...
by Roldorf
Thu Oct 03, 2019 6:01 pm
Forum: Microscopes and optics
Topic: My Latest Microscope
Replies: 9
Views: 2434

Re: My Latest Microscope

Another pic to whet your appetite.

image1 .jpg
image1 .jpg (126.03 KiB) Viewed 2399 times

Will let you know what it is when I find out.
by Roldorf
Thu Oct 03, 2019 12:54 pm
Forum: Microscopes and optics
Topic: My Latest Microscope
Replies: 9
Views: 2434

My Latest Microscope

Just acquired a new stereo microscope at a bargain price. Optika SFX 91 from a mineral borse (show) in Clausthal-Zellerfeld where we were attending a week long course on minerals (our third in the last two years). Half price made it an unmissable buy. Optika-SFX-91.jpg The very first image from the ...
by Roldorf
Wed Oct 02, 2019 9:33 pm
Forum: Introduce yourself
Topic: I got it!!! Thanks for the help Microbehunter!
Replies: 4
Views: 1878

Re: I got it!!! Thanks for the help Microbehunter!

Hi Thomas,

Congratulations on your new microscope, your enthusiasm is a breath of fresh air and thanks for the videos. I look forward to more exciting discoveries from the Thomas. schwartz studios.

Alan
by Roldorf
Wed Oct 02, 2019 7:57 pm
Forum: Off Topic
Topic: The Explorer's Guide to Biology
Replies: 2
Views: 4647

Re: The Explorer's Guide to Biology

Thanks for the link BillBillt
by Roldorf
Wed Oct 02, 2019 7:42 pm
Forum: Pictures and Videos
Topic: Festuca Grass Hand Sections
Replies: 23
Views: 5000

Re: Festuca Grass Hand Sections

Hey John
Nice job 'Multi Colour Staining' I think you are going to start a trend. Lovely. Just got back from a 'working holiday' and to see this first thing is fabulous.
Many thanks
by Roldorf
Thu Sep 19, 2019 9:21 am
Forum: Introduce yourself
Topic: Hello from Connecticut
Replies: 8
Views: 3233

Re: Hello from Connecticut

Hi Mickey I will keep my fingers crossed that it all works out with the new lens.
by Roldorf
Tue Sep 17, 2019 9:39 pm
Forum: Introduce yourself
Topic: Hello from Connecticut
Replies: 8
Views: 3233

Re: Hello from Connecticut

Hi Mickey. Yes my camera is setup. I used a spare eyepiece that I had to connect all the bits together. The view through the camera is about 5% smaller than through the eyepiece but I can live with that. See here for a comparison, the two images are 180 degrees apart:- http://www.microbehunter.com/m...
by Roldorf
Tue Sep 17, 2019 6:32 pm
Forum: Pictures and Videos
Topic: Pollen. There's lots of it about.
Replies: 100
Views: 67265

Re: Pollen. There's lots of it about.

Out in the forest on Sunday and found this. It's amazing how many plants were used for medical purposes in the past.


Image
by Roldorf
Tue Sep 17, 2019 2:40 pm
Forum: Introduce yourself
Topic: Hello from Connecticut
Replies: 8
Views: 3233

Re: Hello from Connecticut

HI Mickey welcome to the forum glad our posts were useful. :) :) :)
by Roldorf
Mon Sep 16, 2019 1:36 pm
Forum: Identification help
Topic: No idea I
Replies: 5
Views: 2938

Re: No idea I

In order for people to help to need to state the basics: Where you found the sample and what the magnification is of the sample, at least. Without those two most basic pieces of information there is no chance of any help. They could be pollen grains, they could be spores, did you stain them or is th...
by Roldorf
Sun Sep 15, 2019 6:49 pm
Forum: Introduce yourself
Topic: Hello from Spain
Replies: 2
Views: 1608

Re: Hello from Spain

Hi welcome to the forum. :)
by Roldorf
Sat Sep 14, 2019 6:01 pm
Forum: Pictures and Videos
Topic: Pollen. There's lots of it about.
Replies: 100
Views: 67265

Re: Pollen. There's lots of it about.

Hi David_b Thanks for the suggestion of ragweed. It was (and is) the correct flowering time for them, however from what I could find on the internet the Ragweed pollen is only 15-25 um in diameter which would rule out this enormous grain. If I am wrong on the size please let me know. I have to admit...
by Roldorf
Sat Sep 14, 2019 3:21 pm
Forum: Pictures and Videos
Topic: Pollen. There's lots of it about.
Replies: 100
Views: 67265

Re: Pollen. There's lots of it about.

Hi John,
That's what I thought and the reason I decided to post it. I checked it out on PalDat and it looks exactly the same. The image under the scope was much clearer unfortunately the stack didn't turn out as good, I think I rushed it a bit. (was so excited Ha :D )

Reminded me of a pineapple.
by Roldorf
Sat Sep 14, 2019 1:56 pm
Forum: Pictures and Videos
Topic: Pollen. There's lots of it about.
Replies: 100
Views: 67265

Re: Pollen. There's lots of it about.

Sweet Basil growing wild in the garden must have seeded itself from last year (we never planted it).

Pollen is an unusual shape:-

Edit included stem cross section

Image
by Roldorf
Thu Sep 12, 2019 8:37 pm
Forum: Pictures and Videos
Topic: It's Pilz (Mushroom) Season
Replies: 3
Views: 1187

Re: It's Pilz (Mushroom) Season

mnmyco

Thanks for the identification. We never went back to get a better sample.
by Roldorf
Sat Sep 07, 2019 8:22 pm
Forum: Pictures and Videos
Topic: Pollen. There's lots of it about.
Replies: 100
Views: 67265

Re: Pollen. There's lots of it about.

Found some interesting pollen, (strange shape) looks much better under the scope however. Open the image in a new tab to see full size view:-

Image
by Roldorf
Sat Sep 07, 2019 1:05 pm
Forum: Beginner's corner
Topic: immersion oil question
Replies: 9
Views: 2146

Re: immersion oil question

What do you expect to see from an aquarium with a 100x lens that can't be observed under a 60x? you wouldn't need to use oil at all.
by Roldorf
Wed Sep 04, 2019 9:00 pm
Forum: Introduce yourself
Topic: Hello from Mansfield UK
Replies: 8
Views: 2115

Re: Hello from Mansfield UK

Hi Mark Welcome to the forum.