Search found 212 matches

by Zuul
Sun Aug 09, 2020 5:02 pm
Forum: Specimens, samples and slides
Topic: Alternative mountants
Replies: 8
Views: 1599

Re: Alternative mountants

Yes, I suppose not doing a quick search on the forum was a pretty obvious oversight!

I’m curious about the high RI products not being solid, though. The NOA 170 I linked states, “when fully cured is very rigid and brittle.”
by Zuul
Sun Aug 09, 2020 4:20 pm
Forum: Specimens, samples and slides
Topic: Alternative mountants
Replies: 8
Views: 1599

Alternative mountants

It seems that high refractive index mountants are difficult, or at least very inconvenient, to source. I’m curious if anyone has experimented with optical adhesives available in a variety of refractive indices. Norland seems to be the most prolific, but a few other manufactures have them, as well. N...
by Zuul
Sat Aug 08, 2020 8:18 pm
Forum: Beginner's corner
Topic: USB digital microscope
Replies: 9
Views: 6090

Re: USB digital microscope

I use something like the linked product at work. It is very good for some things, but 1000x is completely untrue. In reality 100x is pretty accurate. You definitely will not be able to observe bacteria in any way.
by Zuul
Sat Aug 08, 2020 4:54 am
Forum: Microscopes and optics
Topic: Reichert 410 "Microstar IV" coarse/fine focus mechanism diagrams
Replies: 6
Views: 1153

Re: Reichert 410 "Microstar IV" coarse/fine focus mechanism diagrams

That doesn’t exactly match either of my 410’s. I don’t know if there was much generational variation. The friction element under the left course focus is obviously different among other small differences. One of my patents is for a specialized gear train, and the illustrations don’t match the final ...
by Zuul
Sat Aug 08, 2020 12:33 am
Forum: Specimens, samples and slides
Topic: Diatom Shop experiences
Replies: 1
Views: 1120

Diatom Shop experiences

I was wondering if anyone has experience with Diatom Shop (www.diatomshop.com) and specifically their general strew slides. How would you rate the quality? The test slides get good reviews, so I'm curious if the strews are as good but unsorted / un-arranged.
by Zuul
Fri Aug 07, 2020 1:39 am
Forum: Microscopes and optics
Topic: Illumination without diffusive elements
Replies: 16
Views: 1772

Re: Illumination without diffusive elements

Hans, if you haven’t read this, it may be of interest to you ... specifically the “hidden assumption” section.

http://www.microscopy-uk.org.uk/mag/ar ... ohler.html
by Zuul
Fri Aug 07, 2020 1:32 am
Forum: Camera systems and imaging
Topic: Microscope and monitor sharpen?
Replies: 30
Views: 2503

Re: Microscope and monitor sharpen?

Nothing stupid about that--even the language to describe it isn't standardized across or even within brands (erect/upright/nonreversed) and it's a non-issue for most normal microscopy so it doesn't get discussed much. That's why it's hard to figure out whether a particular head has the feature othe...
by Zuul
Thu Aug 06, 2020 8:46 pm
Forum: Camera systems and imaging
Topic: Reichert 410 "Microstar IV" head -- corrective element present in binocular path but not trinocular camera port
Replies: 155
Views: 18345

Re: Reichert 410 "Microstar IV" head -- corrective element present in binocular path but not trinocular camera port

MichaelG. wrote:
Thu Aug 06, 2020 8:35 pm
Zuul wrote:
Thu Aug 06, 2020 8:05 pm
Are you just satisfying curiosity at this point?
In a word ... Yes
That's cool. I was just making sure there wasn't some super secret optical skunkworks ready to start grinding custom glass. :D
by Zuul
Thu Aug 06, 2020 2:38 am
Forum: Microscopy accessories
Topic: 23mm diameter 10x/22 eyepieces (!)
Replies: 24
Views: 2224

Re: 23mm diameter 10x/22 eyepieces (!)

apochronaut wrote:
Thu Aug 06, 2020 12:25 am
There are slso 23/30 that are configured on an AO pattern.
How would the average person be able to spot this? (No, Phil, you aren’t an average person in regard to microscopy.)
by Zuul
Wed Aug 05, 2020 11:53 pm
Forum: Microscopy accessories
Topic: 23mm diameter 10x/22 eyepieces (!)
Replies: 24
Views: 2224

Re: 23mm diameter 10x/22 eyepieces (!)

And why did the big brands not make 10x/22s themselves when 23mm eyepieces were in vogue? Maybe this has just gotten a lot easier with modern supply chains and computer design methods? Maybe they weren't interested in (or capable of) designing all of their objectives to be aberration free all the w...
by Zuul
Wed Aug 05, 2020 11:37 pm
Forum: For forum members who want to buy and sell equipment
Topic: WTB ready-to-use ~$400 used microscope from forum member
Replies: 20
Views: 2328

Re: WTB ready-to-use ~$400 used microscope from forum member

All I can say is, think classic Mercedes vs 80's Toyota. The Mercedes doesn't have as many features and the tech is older, but it still feels crafted with care in a way the Toyota won't. It's not better. It's not worse. It is very different. I hate to inject reality into the conversation, but most o...
by Zuul
Wed Aug 05, 2020 6:41 pm
Forum: Camera systems and imaging
Topic: Microscope and monitor sharpen?
Replies: 30
Views: 2503

Re: Microscope and monitor sharpen?

I have tried moving eyepieces in and out and there is no difference except when it is almost loose! I have no idea how its working without adjusting eyepieces but it works perfectly :shock: //KD Refocusing when you switch between eyepieces and camera can easily make up for huge differences, so you ...
by Zuul
Wed Aug 05, 2020 4:14 pm
Forum: Camera systems and imaging
Topic: Reichert 410 "Microstar IV" head -- corrective element present in binocular path but not trinocular camera port
Replies: 155
Views: 18345

Re: Reichert 410 "Microstar IV" head -- corrective element present in binocular path but not trinocular camera port

Since I decided not to experiment with configurations without eyepieces I have no specific use in mind for the removed corrector other than reverse engineering. If anyone wants to suggest ways to separate the doublet I would be happy to try. Soak in Xylene or Acetone? I'd use a diamond saw if I had...
by Zuul
Wed Aug 05, 2020 4:10 pm
Forum: Camera systems and imaging
Topic: Microscope and monitor sharpen?
Replies: 30
Views: 2503

Re: Microscope and monitor sharpen?

Hmm but I have no diopter adjustments on the eyepiece, i have thought it's a little strange? But I still have sharpness through the eyepiece! I'm used to diopter settings because I'm a bird watcher and wildlifefilmmaker. But how it works on microscope??? //KD It is exactly like setting up binocular...
by Zuul
Wed Aug 05, 2020 4:03 pm
Forum: Microscopes and optics
Topic: Photo tube adapter
Replies: 33
Views: 2387

Re: Photo tube adapter

I think this is the relevant topic : http://www.microbehunter.com/microscopy-forum/viewtopic.php?f=5&t=9968 MichaelG. Thanks for the link. I did scan that at the time, but I'm easily distracted ... like a puppy. :) The fact that the photo eyepiece is 23.3mm on a 'scope with 30mm oculars does lead o...
by Zuul
Wed Aug 05, 2020 2:55 pm
Forum: For forum members who want to buy and sell equipment
Topic: WTB ready-to-use ~$400 used microscope from forum member
Replies: 20
Views: 2328

Re: WTB ready-to-use ~$400 used microscope from forum member

Don’t rule out the AO series 10. They are wonderfully robust, use the same optics as the 110, and can be had at bargain prices. I have a 10 and a 410, and there are many things that I actually prefer about the 10.
by Zuul
Wed Aug 05, 2020 2:50 pm
Forum: Microscopes and optics
Topic: Photo tube adapter
Replies: 33
Views: 2387

Re: Photo tube adapter

I don’t think I’ve read you troubles with the photo eyepiece, but I’m very familiar with the complexities of attaching a DSLR! The eyepiece you linked is very likely using the same optical formula as your 30mm eyepieces. If it does, the images using your phone and Celestron adapter would be just as ...
by Zuul
Wed Aug 05, 2020 2:43 pm
Forum: Camera systems and imaging
Topic: Microscope and monitor sharpen?
Replies: 30
Views: 2503

Re: Microscope and monitor sharpen?

Now I have tried to move the camera up and down in the trinocular tube and it makes no difference. I put an eyepiece in the trinocular tube and looked then everything was reversed. But the picture from the camera showed everything in the right direction. I was wondering if I should parfocal the obj...
by Zuul
Wed Aug 05, 2020 2:26 pm
Forum: Microscopes and optics
Topic: Photo tube adapter
Replies: 33
Views: 2387

Re: Photo tube adapter

This is my fallback in case the problem with the photo eyepiece described in the other thread cannot be resolved by Motic (no reply yet to dealer's enquiry). However, LabCam expensive and I am unimpressed with their sales advice. I've seen both good and bad reviews. I have a phone adapter Celestron...
by Zuul
Tue Aug 04, 2020 10:06 pm
Forum: Microscopes and optics
Topic: Photo tube adapter
Replies: 33
Views: 2387

Re: Photo tube adapter

Not sure I understand the bit about direct access - here are photos showing The bottom half of the tube with eyepiece As above with eyepiece inserted Both halves of the tube attached to camera Complete asssembly attached to scope From the information I could find, I wasn't sure if the adapter came ...
by Zuul
Tue Aug 04, 2020 7:54 pm
Forum: Microscopes and optics
Topic: Photo tube adapter
Replies: 33
Views: 2387

Re: Photo tube adapter

Let me repeat. He does NOT have a c-mount adapter. Further discussion of c-mount is only confusing the issue. . Please don’t shout I was busy discussing the matter with David, and hadn’t even seen your pontification until you repeated it ... Over to you to give all necessary guidance MichaelG. [ ye...
by Zuul
Tue Aug 04, 2020 7:50 pm
Forum: Microscopes and optics
Topic: Photo tube adapter
Replies: 33
Views: 2387

Re: Photo tube adapter

Labcam says, "Your LabCam purchase already includes the 30mm and 23.2mm adapters". Is the photo eyepiece not 23.2? Other sizes would be unusual. Ah, I see what you mean. The Motic tube is indeed 23.2mm dia but is 9cm in length. Would inserting the LabCam in this tube result in a correct size image?...
by Zuul
Tue Aug 04, 2020 7:35 pm
Forum: Camera systems and imaging
Topic: Microscope and monitor sharpen?
Replies: 30
Views: 2503

Re: Microscope and monitor sharpen?

Focus through the eyepieces and do not touch the focus again. Does lifting the camera improve the focus or make it worse? If lifting is an improvement, you have an easy path: find the correct height and fashion a permanent spacer. If lifting makes things worse, it will be harder to fix.
by Zuul
Tue Aug 04, 2020 7:29 pm
Forum: Microscopes and optics
Topic: Photo tube adapter
Replies: 33
Views: 2387

Re: Photo tube adapter

:cry: I'm confused! The female part is shown in the original post. The male part that fits into it is shown below. One slots into the other and is secured by an allen screw. There are no threads involved. Is this a C-mount? IMG_2887.jpg In a word ... No C-mount is the screw thread that’s used on ci...
by Zuul
Tue Aug 04, 2020 7:09 pm
Forum: Microscopes and optics
Topic: Photo tube adapter
Replies: 33
Views: 2387

Re: Photo tube adapter

He does not have a c-mount adapter. The one he has is designed for connection of a interchangeable lens camera.
by Zuul
Tue Aug 04, 2020 5:07 pm
Forum: Microscopes and optics
Topic: Photo tube adapter
Replies: 33
Views: 2387

Re: Photo tube adapter

Motic sells t-mount photo tubes for your microscope. The adapter accepts a photo eyepiece designed to project the image to a camera sensor. That is likely the same 30mm size as the normal eyepieces. You should confirm with your dealer. Documentation isn’t great, but if it is like other photo tubes ...
by Zuul
Tue Aug 04, 2020 2:42 pm
Forum: Camera systems and imaging
Topic: Microscope and monitor sharpen?
Replies: 30
Views: 2503

Re: Microscope and monitor sharpen?

Thanks for answer Michael! I have tested both Panasonic GH4 an my HY-2307 camera and i can not get sharp on the same time. I use trinocular tube. I also use euromex-adapter for GH4. And i have tested both HDMI directly to the monitor and also USB to the laptop. :D //KD Hmm i have read a lot now and...
by Zuul
Tue Aug 04, 2020 2:37 pm
Forum: Microscopes and optics
Topic: Photo tube adapter
Replies: 33
Views: 2387

Re: Photo tube adapter

Motic sells t-mount photo tubes for your microscope. The adapter accepts a photo eyepiece designed to project the image to a camera sensor. That is likely the same 30mm size as the normal eyepieces. You should confirm with your dealer. Documentation isn’t great, but if it is like other photo tubes y...
by Zuul
Tue Aug 04, 2020 1:22 am
Forum: Camera systems and imaging
Topic: Reichert 410 "Microstar IV" head -- corrective element present in binocular path but not trinocular camera port
Replies: 155
Views: 18345

Re: Reichert 410 "Microstar IV" head -- corrective element present in binocular path but not trinocular camera port

apochronaut wrote:
Tue Aug 04, 2020 1:13 am
Finally! it has been clarified. Like ghee.
I’ll never understand clarified butter. The milk solids (and salt!) are the good part!