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Celestron make a USB microscope camera that slots into the eyepiece and plugs into the computer. Works great for live video but image capture is low resolution. Also gives a much smaller image the the eyepiece field of view.

I tried the smartphone on the eyepiece and with a steady hand can be OK, but fiddly.

I got a second hand Canon DSLR body on eBay for about $300, plus an attachment for a Nikon microscope for $25. It plugs straight into an eyepiece, connects to any computer with a USB cable, and gives high quality live video and excellent screen capture capability. I can also control it remotely from the computer, saving bumping the setup as I take photos. Free software for Mac or PC. I tried it on the trinocular head but it gave some lens flare and spherical aberration. A bit of a nuisance having a camera in the eyepiece sometimes but easy to move on and off, and you can sit back and view easily on the computer.



regards
Ralph Bottrill
Senior Geologist, Mineralogist and Petrologist
Metallic Minerals & Geochemistry
Mineral Resources Tasmania
PO Box 56, Rosny Park TAS 7018
Phone: 61 3 6165 4715,  m: 0429 173 055;
Email: [log in to unmask]
From: Metamorphic Studies Group <[log in to unmask]> on behalf of Leonardo Lagoeiro <[log in to unmask]>
Sent: Saturday, 23 May 2020 6:22:27 AM
To: [log in to unmask] <[log in to unmask]>
Subject: Re: [geo-metamorphism] Digital Camera for an Optical Microscope
 
Hi Cici
Good point. Interference figures will be one of the things to share with students.
-----
Leonardo Lagoeiro
[log in to unmask]



On 22 May 2020, at 16:56, Alicia Cruz-Uribe <[log in to unmask]> wrote:

Another important thing to consider about many (?) microscopes is that the Bertrand lens is not in the flight path for many of these cameras that mount on the tubes. So, if you are interested in your students sharing their interference figures, etc, the smartphone mounts might be a good way to go. 

Cheers, 
Cici 

_________________________
Alicia M. Cruz-Uribe
Edward Sturgis Grew Assistant Professor of Petrology and Mineralogy
University of Maine
5790 Bryand Global Sciences Center
Orono, ME 04469
(207) 581-4494
[log in to unmask]

On Fri, May 22, 2020, 3:50 PM Jinny Sisson <[log in to unmask]> wrote:
Celestron also makes a smartphone attachment that can work very well if there is space for it:   https://www.celestron.com/products/nexyz-3-axis-universal-smartphone-adapter
 


---------- Original Message ----------
From: Chris Mattinson <[log in to unmask]>
To: [log in to unmask]
Subject: Re: [geo-metamorphism] Digital Camera for an Optical Microscope
Date: Fri, 22 May 2020 12:08:43 -0700

A holder for a smartphone is another option, the image quality can be
quite good and it is easy to attach to a microscope without needing a
trinocular:

http://www.scientificdevice.com/microscopeplatform/

Chris

On Fri, 22 May 2020, Leonardo Lagoeiro wrote:

> Hi John
> Thank you very much for sharing your experience. I’l be happy to share mine too. I liked  the idea to have a DSLR Camera attached to the microscope. If you could provide  the type of tube you use to attach the camera on that would be helpful. I heard that Canon has a piece of software that can be used to share video lively.
> Thanks again
> Cheers
> -----
> Leonardo Lagoeiro
> Federal University of Parana
> Department of Geology
> Curitiba, PR, Brazil
>
>
>
>> On 22 May 2020, at 12:43, John Goodge <[log in to unmask]> wrote:
>>
>> Hi Leonardo,
>>
>> Great question and one that many of us will continue to face. I built a new microscopy lab in 2006 that has 16 student scopes linked together using CCD video cameras that send live images on coax cables through a signal 'multiplexer' (like used in security camera setups) to overhead video projectors. Rather than install digital consumer cameras (which have OEM-specific menu systems, may be subject to breakage by students, and are frequently replaced by new models), I opted for small Hitachi CCD units that just produce a video signal, require a small amount of power, and project decent images in real time (including microscope manipulations like stage rotation). They are basically bombproof, good auto exposure settings, are extremely stable, and have a small profile on the microscope (see attached image). The multiplexer allows us to switch between students instantly, giving them the opportunity to teach everyone else and all of us to learn together. This setup works great
in the l
ab as an alternative to regular digital cameras and it's been a huge success. The only downside in my setup is that the cameras themselves have no image capture capability because they run directly to a video projector, but it turns out that students are pretty clever and use smartphones to take images down the eyepiece. If we really want proper images we have an instructor scope equipped with a Canon DSLR.
>>
>> Two years ago I replaced all of the Hitachi cameras with higher resolution digital units from Sentech (spec sheet attached). These give HD digital images at 1080p and limited only by the resolution of the projector. The color rendition is excellent. The Sentech cameras were about USD600 each, plus you need adaptors to fit the scope, etc. Unlike the Hitachi units, these cameras have digital output already through HDMI, so they should be easily connectable to a computer. Then, for remote teaching applications like you're asking about, it should be possible to use a CCD camera on your own scope and then screen-share using Zoom or something similar to demonstrate. I've used a document camera in the same way to share live images of diagrams, notes, maps, and even a compass.
>>
>> Thought I'd share this as an alternative to digital cameras. Be happy to provide any other details on the equipment we're using if you have any questions. I'm sure many will be interested in hearing about your experiences and those of others! Good luck.
>>
>> Cheers,
>>
>> John
>>
>>
>> <corey & scope_4308.jpg>
>>
>> ____________________________
>> Dr. John W. Goodge, Professor
>> Department of Earth & Environmental Sciences
>> University of Minnesota Duluth
>> 1114 Kirby Dr.
>> Duluth, MN  55812 USA
>> Tel. 218-726-7491
>> Fax 218-726-8275
>> Email [log in to unmask] <mailto:[log in to unmask]>
>> Web sites.google.com/d.umn.edu/john-goodge <http://sites.google.com/d.umn.edu/john-goodge>
>> RAID project www.rapidaccessicedrill.org <http://www.rapidaccessicedrill.org/>
>>
>> On Fri, May 22, 2020 at 8:10 AM Leonardo Lagoeiro <[log in to unmask] <mailto:[log in to unmask]>> wrote:
>> Dear members of  Metamorphic Studies Group
>> I hope this message finds you all well and healthy. I am looking for an affordable and good quality digital camera to use in a polariser microscope. The idea is to share optical microscopy practices with students during lockdown by demonstrating how to use the microscope to observe mineral properties.
>> Thank you
>>
>> -----
>> Leonardo Lagoeiro
>> [log in to unmask] <mailto:[log in to unmask]>
>>
>>
>>
>>> On 21 May 2020, at 18:17, Matt Kohn <[log in to unmask] <mailto:[log in to unmask]>> wrote:
>>>
>>> Hi folks,
>>>
>>> A quick (and friendly!) reminder that nomination packages for the AGU-VGP Norman L Bowen and Hisashi Kuno Awards are due 1 June. More details for the nomination requirements and process can be found here: (Bowen <https://www.agu.org/Honor-and-Recognize/Honors/Section-Awards/Bowen-Award-and-Lecture>,Kuno <https://www.agu.org/Honor-and-Recognize/Honors/Section-Awards/Kuno-Award>).
>>>
>>> Please consider nominating a colleague or a collaborator for these important awards. Please also think broadly about who in our community is deserving of nomination – the nomination and award rates for women and minoritized groups for these awards are quite low.
>>>
>>> Thank you!
>>>
>>> Adam Kent (Bowen Award Chair)
>>> Matt Kohn (Kuno Award Chair)
>>>
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__
Chris Mattinson
Professor & Chair
Department of Geological Sciences
Central Washington University
400 E. University Way, Ellensburg, WA 98926-7418
Tel: 509.963.1628


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