Search found 1027 matches

by Wes
Wed Sep 28, 2022 8:05 pm
Forum: Pictures and Videos
Topic: Microscopic life in a sea water aquarium
Replies: 21
Views: 4320

Re: Microscopic life in a sea water aquarium

Thank you all once again for the comments. Thank you all for the comments and interest. Are you using your usual equipment your did you make an upgrade? Usual equipment, but I did get a DIC prism that works well with my ancient 25x planapo and used that for some of the images. Do you know the ID of ...
by Wes
Tue Sep 27, 2022 8:23 pm
Forum: Pictures and Videos
Topic: Microscopic life in a sea water aquarium
Replies: 21
Views: 4320

Re: Microscopic life in a sea water aquarium

Thank you all for the comments and interest. Are you using your usual equipment your did you make an upgrade? Usual equipment, but I did get a DIC prism that works well with my ancient 25x planapo and used that for some of the images. Do you know the ID of the oval ciliate after the pigmented Hypotr...
by Wes
Tue Sep 27, 2022 6:58 pm
Forum: Pictures and Videos
Topic: Microscopic life in a sea water aquarium
Replies: 21
Views: 4320

Microscopic life in a sea water aquarium

I have always wanted to but never had the opportunity to study marine microscopic life. I had the idea of simply walking into a sea water aquarium store and asking for a small sample. The owner of the store was very intrigued by my request and picked material from 3 different aquariums. Here I prese...
by Wes
Mon Sep 26, 2022 6:48 pm
Forum: Pictures and Videos
Topic: Hyalosphenia a testate amoeba
Replies: 3
Views: 783

Re: Hyalosphenia a testate amoeba

Cool specimen!

By the way, if you paste the youtube ID 3VKQ88bPkow between the youtube tags you can embed the video directly in your post.

[#youtube]3VKQ88bPkow[/youtube]

without the #
by Wes
Mon Sep 26, 2022 8:45 am
Forum: For forum members who want to buy and sell equipment
Topic: For sale : NIKON PlanApo 20x, 40x, 100x
Replies: 9
Views: 2239

Re: For sale : NIKON PlanApo 20x, 40x, 100x

These objectives will make a fine paperweight.
by Wes
Thu Sep 22, 2022 8:15 am
Forum: Microscopes and optics
Topic: Question about a Zeiss part
Replies: 11
Views: 2213

Re: Question about a Zeiss part

tlansing wrote:
Wed Sep 21, 2022 10:51 pm
Weren't these the S-Kpl eyepieces?
Yes, the S-Kpl W eyepiece will produce superb images.
by Wes
Wed Sep 21, 2022 9:36 pm
Forum: Microscopes and optics
Topic: Question about a Zeiss part
Replies: 11
Views: 2213

Re: Question about a Zeiss part

tlansing wrote:
Wed Sep 21, 2022 8:35 pm
You noted that an eyepiece is still needed. What do you recommend/use in your setup?
I use a 10x/18 Kpl-W eyepiece and a 40 mm pancake lens which nicely fills the APS-C sensor of my camera. A 10x/20 is better but I noticed that these produce a purple hotspot that can be annoying.
by Wes
Wed Sep 21, 2022 7:30 pm
Forum: Pictures and Videos
Topic: Amoeba attack sequence
Replies: 9
Views: 1348

Re: Amoeba attack sequence

Hi David,

Thank you for this superb sequence. Fascinating subject and excellent quality! Looking forward to more :)
by Wes
Wed Sep 21, 2022 7:08 pm
Forum: Microscopes and optics
Topic: Question about a Zeiss part
Replies: 11
Views: 2213

Re: Question about a Zeiss part

Hi Tim, What you have is a 63 mm objective for the conversion of a virtual into a real image. A real image is one that can be directly projected onto a sensor, film or a projection screen. You need clamping ring 47 60 05 and phototube 47 30 24: https://www.mikroskopie-forum.de/pictures004/156041_290...
by Wes
Tue Sep 20, 2022 5:13 am
Forum: My microscope
Topic: My Zeiss Microscopes
Replies: 143
Views: 125960

Re: My Zeiss Microscopes

Hi Jochen,
Thank you for the detailed demonstration of the K5 slide. Its always exciting to see how reality reflects theory which you nicely show here.
by Wes
Mon Sep 19, 2022 3:49 am
Forum: Miscellaneous
Topic: Goals
Replies: 10
Views: 1965

Re: Goals

Dennis wrote:
Mon Sep 19, 2022 12:44 am
Will any vegetable oils work?
Olive oil but only if its extra virgin :lol: srsly tho get actual immersion oil, its not hard to procure.
by Wes
Sun Sep 18, 2022 1:53 pm
Forum: Morphology and Behavior
Topic: Microscopy of algae reproduction
Replies: 3
Views: 2513

Microscopy of algae reproduction

I really enjoyed these videos from Jeremy Pickett-Heaps, a renowned Australian plant cell biologist, and thought I'd share them here. Really unique footage of events pertaining to the reproduction of algae captured using classical video microscopy techniques. n7RggKhWD8g xXaTyYpGkTU O9v-xj2fjQI WDWb...
by Wes
Sun Sep 18, 2022 1:47 pm
Forum: Pictures and Videos
Topic: Beautiful observation - Obertrumia Aurea?
Replies: 20
Views: 2732

Re: Beautiful observation - Obertrumia Aurea?

Javier wrote:
Sun Sep 18, 2022 1:23 pm
I isolated three of them and now trying to start a culture. Will see...
What are you feeding them with?
by Wes
Sun Sep 18, 2022 11:21 am
Forum: My microscope
Topic: My Zeiss Microscopes
Replies: 143
Views: 125960

Re: My Zeiss Microscopes

That is a great add-on for sure! Now I'm curious about what other test slides were included with the set :)
by Wes
Sun Sep 18, 2022 4:51 am
Forum: My microscope
Topic: My Zeiss Microscopes
Replies: 143
Views: 125960

Re: My Zeiss Microscopes (Comparison photo adaption Zeiss Standard versus Olympus BX)

Hi, did a comparison of my photo adaptions I use currently: green rectangle: Olympus BX with Canon EOS600D (the intermediate image is directly projected to the camera sensor) red rectangle: Zeiss Standard with large field optovar 0,8x - KPL SKPL 10x/20 (Ocular) - YN EF35mm (Camera objective) - Cano...
by Wes
Sat Sep 17, 2022 5:24 pm
Forum: Camera systems and imaging
Topic: DSLR issue
Replies: 40
Views: 5539

Re: DSLR issue

Thats interesting, I thought direct projection largely eliminates CA, not sure about axial CA tho. You can eliminate the magenta and greens with photo editing software but I suspect you want to eliminate it at the source.
by Wes
Sat Sep 17, 2022 4:52 pm
Forum: Camera systems and imaging
Topic: DSLR issue
Replies: 40
Views: 5539

Re: DSLR issue

What projection method do you use? Afocal or direct projection?
by Wes
Sat Sep 17, 2022 4:32 pm
Forum: Pictures and Videos
Topic: Beautiful observation - Obertrumia Aurea?
Replies: 20
Views: 2732

Re: Beautiful observation - Obertrumia Aurea?

wow nice catch, beautiful specimen
by Wes
Wed Sep 14, 2022 5:05 am
Forum: Pictures and Videos
Topic: Baby Oedogonium
Replies: 2
Views: 617

Re: Baby Oedogonium

Hi Tim, Great images, occasionally I also stumble upon newly hatched Oedogonium tethered to the coverslip via the holdfast structure. Have you observed the motile zoospore stage? Also I find it interesting that you achieve such high magnification with the 40x neofluar. What % of the F.O.V. do you co...
by Wes
Thu Aug 25, 2022 7:56 pm
Forum: About the website, the magazine and this forum
Topic: Spammers proliferate
Replies: 37
Views: 14633

Re: Spammers proliferate

I really do not understand why it is not possible to initially block and prevent spamming by an algorithm that will recognize obvious spams Probably because it requires some effort on side of the admin who runs this site as a hobby and has a life to deal with, family etc. I doubt spammers affect hi...
by Wes
Fri Aug 19, 2022 5:52 pm
Forum: Miscellaneous
Topic: Brain eating amoeba kills child inNebraska
Replies: 8
Views: 2376

Re: Brain eating amoeba kills child inNebraska

Alexander wrote:
Fri Aug 19, 2022 7:56 am
DrPhoxinus wrote:
Fri Aug 19, 2022 12:01 am
Here
Excellent shot! How did you stain the amoeba?
That looks like a drawing.
by Wes
Mon Aug 15, 2022 3:29 pm
Forum: Identification help
Topic: ID - a bouquet of cysts
Replies: 2
Views: 937

Re: ID - a bouquet of cysts

Thank you Javier. Testate amoeba is a possibility although I did not see any protrusiona from the test.
by Wes
Mon Aug 15, 2022 3:28 pm
Forum: Pictures and Videos
Topic: A giant amoeba: Pelomyxa palustris
Replies: 6
Views: 1305

Re: A giant amoeba: Pelomyxa palustris

Thank you for the explanation Luis. I have seen one of these very large amoebas only ones and it was in a very similar habitat rich in filamentous algae. I am currently in Southern Spain and its muy caliente so I can understand the drought problem.
by Wes
Sat Aug 13, 2022 7:09 am
Forum: Identification help
Topic: ID - a bouquet of cysts
Replies: 2
Views: 937

ID - a bouquet of cysts

Image

Anyone got a clue what this structure might be? I have the feeling that the stalk and cluster of round objects (cysts maybe) are two completely independent structures that just happened to be together in this shot. I've never seen such a thing before.
by Wes
Wed Aug 10, 2022 6:32 am
Forum: Pictures and Videos
Topic: A giant amoeba: Pelomyxa palustris
Replies: 6
Views: 1305

Re: A giant amoeba: Pelomyxa palustris

Great catch! Really nicely captured on video and an extremely interesting organsim. Could you tell us about the sample, where exactly did you find this beast?
by Wes
Sun Aug 07, 2022 9:08 am
Forum: Pictures and Videos
Topic: Frontonia releases massive diatom
Replies: 17
Views: 2552

Re: Frontonia? releases massive diatom

It didn't even begin to digest it, very interesting video!
by Wes
Mon Aug 01, 2022 6:26 pm
Forum: Pictures and Videos
Topic: Amphora optical sections
Replies: 11
Views: 2170

Re: Amphora optical sections

The short version is that I don't use my Standard any more, but I use the Universal almost every day! I'd be interested to read more about that and see the progress you've made with upgrading your Universal :) Are the Zeiss Jena apos plug-and-play compatible with the Zeiss west? 45mm and 160mm? I r...
by Wes
Sun Jul 31, 2022 6:50 am
Forum: Pictures and Videos
Topic: It's full of Actinosphaerium
Replies: 5
Views: 994

Re: It's full of Actinosphaerium

Hi Javier, I asked about the sample preparation because I found it interesting you managed to capture so many species of Actinosphaerium and was wondering if you had to gather large amounts of bottom sediments or something like that. A floating coverslip is exactly what it sounds like. You take a cl...
by Wes
Sun Jul 31, 2022 6:41 am
Forum: Pictures and Videos
Topic: Amphora optical sections
Replies: 11
Views: 2170

Re: Amphora optical sections

Thank you Tim and Javier. I would love to see this stacked too though... You can see the stacked image includes random elements from the diatom and doesn't give you a good idea of how it looks in reality (but still looks interesting). https://rasnik.kopame.com/dmqm/media/amphora_stack.jpg Could you ...
by Wes
Sat Jul 30, 2022 9:02 pm
Forum: Pictures and Videos
Topic: It's full of Actinosphaerium
Replies: 5
Views: 994

Re: It's full of Actinosphaerium

This is really beautiful footage and particularly impressing that you produced with a phone. Can you tell me more about the specimen preparation, how did you mount it (i.e. floating coverslip or simply a drop of water added to a slide) and such?