Search found 279 matches

by coominya
Tue May 28, 2019 7:23 pm
Forum: My microscope
Topic: Bobs traveling microscopy kit (plancton)
Replies: 29
Views: 7733

Re: Bobs traveling microscopy kit (plancton)

MicroBob wrote: I'm about to go on a trip to the sea for a couple of days, just my wife and me, the boys stay at home.

Bob
Nice getaway MB, hope you and your wife have great weather for it. That scope is very unique I thought, could you post a pic of it assembled for us?
by coominya
Wed Apr 03, 2019 9:23 pm
Forum: Introduce yourself
Topic: From galaxies to protists
Replies: 8
Views: 3454

Re: From galaxies to protists

Welcome max, a great hobby to be sure, much easier to pursue than DSOs and no clouds lol.
by coominya
Wed Apr 03, 2019 9:20 pm
Forum: My microscope
Topic: Old But Not Irrelevant
Replies: 7
Views: 5933

Re: Old But Not Irrelevant

A nice unit to be sure norm. I bought something a while back with the same objectives, and a tip for you, is be gentle touching these objectives, as the printing can wear off them if handled a lot.
by coominya
Wed Apr 03, 2019 9:17 pm
Forum: My microscope
Topic: Chinese microscope manufacturers overview
Replies: 72
Views: 21707

Re: Chinese microscope manufacturers overview

Like in many spheres now, the only guarantee of overall quality is to buy a used product from a former era.
by coominya
Sun Feb 03, 2019 7:26 am
Forum: Off Topic
Topic: Windows 10
Replies: 32
Views: 16293

Re: Windows 10

I encountered an issue with the chrome which suddenly chrome keeps crashing windows 10 and not at all opening. Please help me to fix this. Perhaps uninstall and then reload it? I use firefox, it has the odd crash but it never crashes the OS. It never used to crash either until I updated it and the ...
by coominya
Tue Jan 22, 2019 10:49 pm
Forum: Digital processing
Topic: Stacking Software
Replies: 35
Views: 13054

Re: Stacking Software

I didn't realize it when I posted the comment above, but the only way it works is with the camera's auto-focus lens attached. Hence it is probably of limited value in microscopy.
by coominya
Tue Jan 22, 2019 1:06 pm
Forum: Digital processing
Topic: Stacking Software
Replies: 35
Views: 13054

Re: Stacking Software

I can use my new camera itself, though I must admit I haven't composed any as yet, nor been near the microscope in weeks :oops: The Olympus M5 camera I bought has consumed my spare time as I have always been a photography buff but haven't had a decent camera in a couple of decades. Catching up for l...
by coominya
Mon Dec 31, 2018 8:09 am
Forum: Beginner's corner
Topic: What is a good specimen or procedure to test quality of phase contrast?
Replies: 3
Views: 1094

Re: What is a good specimen or procedure to test quality of phase contrast?

I would type "phase contrast" into bing images and see what comes up. Then select the most prolific examples and find them in your local environment. Thus you will have many online images to compare with your own test subjects. Following the page link off bing will often lead to a good writeup as we...
by coominya
Mon Dec 31, 2018 8:01 am
Forum: Pictures and Videos
Topic: Birefringence of Ice
Replies: 10
Views: 1271

Re: Birefringence of Ice

Yes, well done, fascinating images. I wonder if the dots are contamination particles?
by coominya
Thu Dec 27, 2018 8:34 pm
Forum: Beginner's corner
Topic: First microscope
Replies: 135
Views: 20499

Re: First microscope

75RR wrote:
However, if the CHB has Phase and the seller is willing to bring the price down a bit then it would make a fair first microscope.
Good advice. In my experience it's always cheaper to buy something "with" the upgrades you want than to upgrade later.
by coominya
Thu Dec 27, 2018 4:07 am
Forum: Identification help
Topic: Chlorophyta algae
Replies: 4
Views: 1360

Re: Chlorophyta algae

Nice find. It has a beautify structure to it, what magnification were you using?
by coominya
Fri Dec 21, 2018 7:40 pm
Forum: Introduce yourself
Topic: Another Australian
Replies: 6
Views: 2394

Re: Another Australian

geos wrote:Hi 75RR

Rotifers are great and I didn't know they even existed until a few weeks ago.
Welcome geos, I'm up in brisvegas, nice video there, that amoeba is a hog isn't it.
by coominya
Sun Dec 16, 2018 9:48 pm
Forum: Beginner's corner
Topic: I was looking to get more out my microscope.
Replies: 9
Views: 2519

Re: I was looking to get more out my microscope.

I was hoping there is more to owning a microscope rather than just looking at random cells. If you are an amateur that is serious about science there certainly is. A lot of it may seem boring at first glance though, like keeping a written log of your more interesting observations, perhaps in an A4 ...
by coominya
Mon Nov 19, 2018 7:52 pm
Forum: Introduce yourself
Topic: Hello from Quebec, Canada
Replies: 2
Views: 1617

Re: Hello from Quebec, Canada

Welcome. I look forward to reading some of your posts. What microscope did you settle for?
by coominya
Mon Oct 29, 2018 7:21 pm
Forum: My microscope
Topic: Leitz SM microscope and Reichert Inverted microscope
Replies: 7
Views: 2632

Re: Leitz SM microscope and Reichert Inverted microscope

I have already done some tests and found the LED frosted bulb is a better choice than even the original bulb. I too have done some LED tests, with mixed results, but I have not tried frosted bulbs. By all means post up a thread detailing your setup in the Illumination Techniques sub-forum, when you...
by coominya
Fri Oct 26, 2018 6:50 am
Forum: Pictures and Videos
Topic: Pool sample
Replies: 3
Views: 745

Re: Pool sample

Great pool you have going, coominya.. The free individuals with internal red or green globbules sure look like a type of ciliate: Genus Coleps. Thanks for the lead on ID charlie. The pool isn't mine, lol, I just happen to know the elderly couple and go there to raid their mulberry and Loquot trees ...
by coominya
Thu Oct 25, 2018 9:45 am
Forum: Off Topic
Topic: Ah Yes, I remember it well ... Archaeopteryx
Replies: 7
Views: 3476

Re: Ah Yes, I remember it well ... Archaeopteryx

So many doubters in the world today trying to pull apart established science, good to see that technology has re-affirmed the authenticity. I have always loved fossils, but alas have never had any for myself. I was pondering a trip to some local coal mines to search for a fern leaf or some-such week...
by coominya
Thu Oct 25, 2018 8:17 am
Forum: Introduce yourself
Topic: Hello from Newfoundland
Replies: 7
Views: 2655

Re: Hello from Newfoundland

PeterArmitage wrote:I just purchased an old Carl Zeiss Jena Amplival phase contrast microscope
First steps are renovating the old microscope.
Hi, and welcome. I just found this, if it's of any use to you.
viewtopic.php?t=6536
by coominya
Thu Oct 25, 2018 6:10 am
Forum: Off Topic
Topic: THE MICROSCOPE CHANNEL ON YOUTUBE..
Replies: 4
Views: 3526

Re: THE MICROSCOPE CHANNEL ON YOUTUBE..

Thanks for the link Bill
by coominya
Wed Oct 24, 2018 10:20 pm
Forum: Pictures and Videos
Topic: Pool sample
Replies: 3
Views: 745

Pool sample

I think the large protists here are paramecium, the pod at the top I am unsure of. 200x & 400x https://i.postimg.cc/nryHPxtv/POOL-01.jpg https://i.postimg.cc/8zB1txX6/POOL-02.jpg https://i.postimg.cc/CKhwtJ96/POOL-04.jpg https://i.postimg.cc/0NV9qDs5/POOL-05.jpg https://i.postimg.cc/DZDFSh0t/POOL-06...
by coominya
Tue Oct 23, 2018 9:28 pm
Forum: Beginner's corner
Topic: Condenser Height Adjustment
Replies: 9
Views: 2053

Re: Condenser Height Adjustment

As a general rule, I wind mine up to the very top, where it's brightest, and then lower it until I get good contrast. There are specifically stated position settings, but the people writing these in articles I have read usually say, "open it a little past the standard setting" and "adjust the conden...
by coominya
Fri Oct 19, 2018 9:12 pm
Forum: Pictures and Videos
Topic: My first symbiotic ciliate - probably
Replies: 12
Views: 2071

Re: My first symbiotic ciliate - probably

A nice specimen. I have seen ones like that in a sample I took some months ago. Interesting how a animal can be full of chloroplasts. What makes you think it has a symbiotic with that algae?
by coominya
Fri Oct 19, 2018 5:39 am
Forum: Pictures and Videos
Topic: Wet Spell in West Texas
Replies: 6
Views: 973

Re: Wet Spell in West Texas

Fascinating, thanks for posting it up Kurt. I came across a disused pool in a yard last week and the entire top 4 inches or so was a mass of green slime. I took a sample in a jar and will post some pix as soon as I get my camera setup to a decent standard.
by coominya
Thu Oct 18, 2018 8:42 pm
Forum: Camera systems and imaging
Topic: Opinion on this micro 4/3 adaptor please
Replies: 10
Views: 12422

Re: Opinion on this micro 4/3 adaptor please

zzffnn wrote:coominya,

Sometimes you can find them cheap from local estate sales, attached to old film cameras.
Ok, thanks for the heads up.
by coominya
Thu Oct 18, 2018 5:13 am
Forum: Camera systems and imaging
Topic: Opinion on this micro 4/3 adaptor please
Replies: 10
Views: 12422

Re: Opinion on this micro 4/3 adaptor please

You can set the camera to M (manual) mode. 28mm, 30mm or 35mm lens should work well with 10x visual eyepiece, as long as you couple them together. That's the problem zz, I don't want to expose my pancake lens ($350) to the vagaries of my homemade setup. Glad it works for you though, if the $14 tube...
by coominya
Thu Oct 18, 2018 4:54 am
Forum: Camera systems and imaging
Topic: Opinion on this micro 4/3 adaptor please
Replies: 10
Views: 12422

Re: Opinion on this micro 4/3 adaptor please

No, it does not work for me, either (hovering the camera). But just pop on the adapter & drop into the eyepiece tube and you get a good image (though it's not perfectly parfocal with the remaining eyepiece). I think it may have to do with the camera's electronics needing a lens or adapter screwed o...
by coominya
Wed Oct 17, 2018 11:39 pm
Forum: Camera systems and imaging
Topic: Opinion on this micro 4/3 adaptor please
Replies: 10
Views: 12422

Re: Opinion on this micro 4/3 adaptor please

I don't think that you need an adapter with a lens. Cool. I'll test it by just hovering the camera, without lens, above the EP tube and see what I can see. Doesn't seem to work? We have the same camera, MII, same scope basically, but the pix are out of focus no matter how I focus with the microscop...
by coominya
Wed Oct 17, 2018 8:54 pm
Forum: Camera systems and imaging
Topic: Opinion on this micro 4/3 adaptor please
Replies: 10
Views: 12422

Opinion on this micro 4/3 adaptor please

I currently use a smartphone on my upright Olympus CH, with mixed results, and spotted this which would allow me to connect my mirrorless Olympus OM- M5 into one of the EP sockets. It looks the part? But I have reservations... I know the lens arrangement in it might not be the highest quality optics...
by coominya
Tue Oct 16, 2018 9:18 pm
Forum: Illumination Techniques
Topic: Darkfield photography
Replies: 28
Views: 9496

Re: Darkfield photography

MicroBob wrote:What ISO setting did you use?
Don't use Auto-ISO but set the camera fixed on the lowest ISO setting like 100.
I agree, but not (low) if the camera doesn't have 100, as low is no lower than 200 but uses a sort of emulation which can cause issues.
by coominya
Tue Oct 16, 2018 7:52 pm
Forum: Microscopy accessories
Topic: Olympus BH2 - matching Phase components
Replies: 2
Views: 2303

Re: Olympus BH2 - matching Phase components

Hi Mike. That's a great microscope you have. I used the earlier model, the ECE for a year, but recently upgraded to a CH with the long barrel objectives. I looked into this upgrading a while back and found it cost about the same price to buy the condenser and objectives separate, as it did to buy a ...