Search found 504 matches

by Roldorf
Wed Oct 28, 2020 2:34 pm
Forum: Pictures and Videos
Topic: Helminths..still hunting answers the old fashioned way.
Replies: 6
Views: 132

Re: Helminths..still hunting answers the old fashioned way.

Horror of horror's, it's bad enough seeing your finger ends when looking at rocks under the stereo scope. My advise is not to look in great depth at anything that comes from your person. :lol: :lol:
by Roldorf
Wed Oct 28, 2020 2:28 pm
Forum: Beginner's corner
Topic: Am I being overly sensitive?
Replies: 11
Views: 219

Re: Am I being overly sensitive?

I kept the tick that gave me Lyme disease, made her a nice little home of sticks and dead vegetation and let her gestate her eggs in a peaceful and relaxed envionment. Her larva as they grew to healthy nymphs were a wonder to behold. I used to let them frolick and play in the warm security of my ar...
by Roldorf
Mon Oct 26, 2020 9:57 pm
Forum: Identification help
Topic: Help with Pollen ID?
Replies: 1
Views: 50

Re: Help with Pollen ID?

Platanus is larger than 30um, see here:- https://www.paldat.org/search/genus/Platanus Salix is around 10um see here;- https://www.paldat.org/search/genus/Salix however there are many species which are slightly different in size. It would help if you could say where and when you found the sample.
by Roldorf
Thu Sep 17, 2020 8:44 am
Forum: Digital processing
Topic: Altami studio price anyone?
Replies: 11
Views: 855

Re: Altami studio price anyone?

I have checked all the pages written in Russian and there is no mention of a price for the software, just contact emails if you want more information. (Use google translate does a pretty good job).
by Roldorf
Wed Sep 16, 2020 3:38 am
Forum: Digital processing
Topic: Altami studio price anyone?
Replies: 11
Views: 855

Re: Altami studio price anyone?

It could be that they no longer exist. The only information I could find about the companies using the software is all Russian based and Altami's website has not been updated for at least one year.
by Roldorf
Tue Sep 15, 2020 7:32 pm
Forum: Digital processing
Topic: Altami studio price anyone?
Replies: 11
Views: 855

Re: Altami studio price anyone?

Use toupview instead, its free.
by Roldorf
Wed Sep 09, 2020 8:29 pm
Forum: Illumination Techniques
Topic: WHY no side illumination in darkfield? (noob)
Replies: 9
Views: 1340

Re: WHY no side illumination in darkfield? (noob)

Just a thought, have you fully opened the condenser diaphragm?
by Roldorf
Sat Sep 05, 2020 3:22 pm
Forum: Camera systems and imaging
Topic: Image Assessment //Mirror Lockup?
Replies: 12
Views: 833

Re: Image Assessment //Mirror Lockup?

For an image hosting website try this. It's free and has links for your images to post on various web sites including hotlinks for forums such as this one. (This is what I use). Once your image and link is posted into the forum you can click on it to take you to the full size image on Postimages. ht...
by Roldorf
Fri Aug 14, 2020 12:31 pm
Forum: Beginner's corner
Topic: Binocular viewing problem
Replies: 13
Views: 1691

Re: Binocular viewing problem

Young people also have problems with merging the images on a binocular microscope. Oliver has a video on one of his channels where he mentions this but I could not find it.
by Roldorf
Fri Aug 14, 2020 12:01 pm
Forum: Beginner's corner
Topic: How to reset ToupView calibration?
Replies: 3
Views: 609

Re: How to reset ToupView calibration?

Options, Magnification, select the 4x or whichever one you want to delete and click DELETE.

Edit: By the way there is a help file in the program. ;) Help, Help contents.
by Roldorf
Sun Aug 09, 2020 8:21 am
Forum: Beginner's corner
Topic: ToupView crashing after recording video
Replies: 5
Views: 985

Re: ToupView crashing after recording video

That's an old version of Toupview released in 2018.
My version which I downloaded in May is:

V x64 4,10,16948.20200412 April 12.2020. 10:11:34
by Roldorf
Wed Aug 05, 2020 7:47 am
Forum: Home-made microscope adaptations
Topic: EOS 4000D modification
Replies: 11
Views: 4733

Re: EOS 4000D modification

Hi JodyMusto,

Hmmmm? Not quite sure how you link image sensor size or image quality to 'Dummy Battery' adapter.

Hi Dave S
Glad you got sorted with the battery adapter is it really a year since you bought the camera?

Alan
by Roldorf
Tue Aug 04, 2020 4:09 pm
Forum: Beginner's corner
Topic: Advice for upright microscope? (Budget 300-800 CHF/USD)
Replies: 16
Views: 1616

Re: Advice for upright microscope? (Budget 300-800 CHF/USD)

I am really interested in your views and pics using the Bresser dark-field condenser, it has been on my wish list for some time now. Looking forward to some pics.
by Roldorf
Wed Jul 29, 2020 6:46 pm
Forum: Beginner's corner
Topic: Advice for upright microscope? (Budget 300-800 CHF/USD)
Replies: 16
Views: 1616

Re: Advice for upright microscope? (Budget 300-800 CHF/USD)

Image


All the previous images taken with a Canon EOS 4000d on a Bresser Science Infinity microscope
by Roldorf
Wed Jul 29, 2020 6:13 pm
Forum: Beginner's corner
Topic: Advice for upright microscope? (Budget 300-800 CHF/USD)
Replies: 16
Views: 1616

Re: Advice for upright microscope? (Budget 300-800 CHF/USD)

See here for darkfield (3) and oblique (2). Rheinberg also works. The filter holder sits under the condenser and is a push fit. The scope comes with a blue filter in the holder. The filters I made myself. Click on the image to go to the postimage website then click again to get the image in full res...
by Roldorf
Tue Jul 28, 2020 8:39 pm
Forum: Beginner's corner
Topic: Advice for upright microscope? (Budget 300-800 CHF/USD)
Replies: 16
Views: 1616

Re: Advice for upright microscope? (Budget 300-800 CHF/USD)

Hi If you buy a scope with semiplan objectives you can not swap out the objectives for infinity objectives. the design of the light path in the scope is different. Optically the field of view that is in focus is wider on infinity objectives than on acromats but that is about it. The price difference...
by Roldorf
Tue Jul 28, 2020 12:24 pm
Forum: Beginner's corner
Topic: Advice for upright microscope? (Budget 300-800 CHF/USD)
Replies: 16
Views: 1616

Re: Advice for upright microscope? (Budget 300-800 CHF/USD)

I visited Kern to look at their microscopes back in 2018. They are not retailers or manufacturers like many others and have no facility's for potential customers. However they were very helpful and did get one of the sales personnel to show us some of the scopes they had available and allow us to tr...
by Roldorf
Tue Jul 28, 2020 12:00 pm
Forum: Beginner's corner
Topic: Advice for upright microscope? (Budget 300-800 CHF/USD)
Replies: 16
Views: 1616

Re: Advice for upright microscope? (Budget 300-800 CHF/USD)

Darkfield condenser. Bresser's Obejctives are like any other manufacturers and can simply be unscrewed. However if you want to have plan infinity objectives you will have to go for the next one up in the range. https://www.bresser.de/Mikroskopie/BRESSER-Dunkelfeld-Kondensor-trocken-Infinity-TFM.html
by Roldorf
Mon Jul 27, 2020 9:23 am
Forum: Resources (online, books etc.)
Topic: Microscopy FAQ
Replies: 13
Views: 1732

Re: Microscopy FAQ

Downloaded to look at later.
by Roldorf
Sun Jul 26, 2020 5:08 pm
Forum: Pictures and Videos
Topic: Pollen. There's lots of it about.
Replies: 130
Views: 77686

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

Had to really search for the pollen as it is inside the anthers.
You learn something new every day.
As usual click on the image for a larger view in postimage.org

Image
by Roldorf
Sun Jul 12, 2020 5:46 pm
Forum: Pictures and Videos
Topic: Pollen. There's lots of it about.
Replies: 130
Views: 77686

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

My father used to tell this story:- To earn money when he was young (14) he used to collect blackberries and sell them to the old folks in the village. One day there was a film at the cinema he wanted to see (Dracula or Frankenstein, I forget which). He had collected a full bowl that he was sure wou...
by Roldorf
Sun Jul 12, 2020 4:48 pm
Forum: Pictures and Videos
Topic: Pollen. There's lots of it about.
Replies: 130
Views: 77686

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

Walking next to the golf course and found this :-

As usual for a larger image, click on it to go to the postimage website then click again to zoom full size.

Image
by Roldorf
Tue Jul 07, 2020 1:28 pm
Forum: Introduce yourself
Topic: Hi, I'm new here
Replies: 7
Views: 921

Re: Hi, I'm new here

Good to know it was a bit confusing. :P :idea:
by Roldorf
Sat Jul 04, 2020 12:53 pm
Forum: Beginner's corner
Topic: The Dirty Cover Glass Blues
Replies: 25
Views: 1820

Re: The Dirty Cover Glass Blues

I have never had a problem with dirty cover glasses even ones that I have used. Soap water and kitchen towel to dry works for me.
by Roldorf
Sun Jun 28, 2020 4:54 pm
Forum: Illumination Techniques
Topic: Incident illumination
Replies: 37
Views: 4158

Re: Incident illumination

yes those German to English translations can be a bit 'trippy'. :lol:
by Roldorf
Sun Jun 28, 2020 12:04 pm
Forum: Illumination Techniques
Topic: Incident illumination
Replies: 37
Views: 4158

Re: Incident illumination

I wonder. What is a slow motion head?
by Roldorf
Sat Jun 27, 2020 1:53 pm
Forum: Illumination Techniques
Topic: Incident illumination
Replies: 37
Views: 4158

Re: Incident illumination

according to the artical they say: 'This ample scope in the choice of the illumination is very advantageous, since certain structures of objects are known to be discernible only when struck bv light incident at a definite azimuthal angle and a definite inclination, which are frequently unknown at th...
by Roldorf
Sat Jun 27, 2020 12:42 pm
Forum: Illumination Techniques
Topic: Incident illumination
Replies: 37
Views: 4158

Re: Incident illumination

Hi MicaelG.
If you are looking for narrow beam LED's you can get them down to 15 degrees from Conrad.
See here:-

https://www.conrad.de/de/p/thomsen-led- ... 80001.html
by Roldorf
Tue Jun 23, 2020 11:15 am
Forum: Pictures and Videos
Topic: Pollen. There's lots of it about.
Replies: 130
Views: 77686

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

Must be nice to have access to a scanning electron microscope. :P :P :P You don't say if the SEM is at work or in your back room. Very nice image, I think the flakes are probably pollen kit (maybe coated in gold).