Search found 76 matches

by jfiresto
Wed Nov 13, 2019 8:24 am
Forum: Camera systems and imaging
Topic: HA2307 HDMI industrial camera
Replies: 37
Views: 4207

Re: HA2307 HDMI industrial camera

,,, why is it that when you see photos of microscope & capture set ups of microscopists who clearly know what they're doing..., they are always using DSLRs?... What puzzles me a little is that they are still using cameras with mirrors. After all that effort to provide optical viewfinders, I have my...
by jfiresto
Tue Nov 12, 2019 9:20 am
Forum: Camera systems and imaging
Topic: Camera to fit a Zeiss TV Tube
Replies: 5
Views: 86

Re: Camera to fit a Zeiss TV Tube

So far, I have been quite pleased with the nearly unused Olympus E-PL7 I picked up, to mount on a Wild Heerbrugg, one-inch-sensor, C-mount port, with no intermediate optics. I think the aspect ratio and cropping of its µ4/3 sensor is a better match than I would get with the wider APS-C sensors. The ...
by jfiresto
Sat Oct 12, 2019 3:09 pm
Forum: Beginner's corner
Topic: Stereo Vs Biological Microscope Eyepieces
Replies: 12
Views: 742

Re: Stereo Vs Biological Microscope Eyepieces

I would want to know at what depth a third party, reticule eyepiece expects the intermediate image, and if that matches the microscope. If the image is deeper into the eyepiece tube than the eyepiece expects (a curse for Wild zombies), you can have a focused reticule or a parfocal microscope, but no...
by jfiresto
Thu Oct 10, 2019 10:15 am
Forum: Beginner's corner
Topic: Newbie with information overload looking for first microscope
Replies: 22
Views: 1245

Re: Newbie with information overload looking for first microscope

I decided to purchase a used Nikon Labophot with a phase contrast condenser and objectives from PeteM.... My kids can't wait to get started using it. I bet your kids will have a lot of fun. My parents, both scientists, gave me a brass, compound, student microscope when I was 7 or 8. I think my wors...
by jfiresto
Thu Oct 03, 2019 12:03 pm
Forum: For forum members who want to buy and sell equipment
Topic: Nikon E400 for sale
Replies: 3
Views: 425

Re: Nikon E400 for sale

That looks like a very fine microscope. Has it been to Antarctica? I think you should advertise that if it has. :)
by jfiresto
Tue Sep 24, 2019 5:05 pm
Forum: Introduce yourself
Topic: Retired now, and looking to obtain first scope for hobby use
Replies: 8
Views: 553

Re: Retired now, and looking to obtain first scope for hobby use

A stereo microscope on a boom stand is ideal for electronics inspection. 3-20X magnification is a good range: 3X for quickly scanning a large area and 20X for investigating things that look suspicious, for example, funny looking (is that a crack?) solder joints. Typically people add on an 0.5X auxil...
by jfiresto
Mon Sep 23, 2019 4:10 pm
Forum: For forum members who want to buy and sell equipment
Topic: WOW. and only $71,409.00
Replies: 3
Views: 583

Re: WOW. and only $71,409.00

Yes, I now expect further signs before I entertain the idea that it is more than a typo.

Watching my hyperactive seller maximizing his profit got pretty amusing. I had hopes he could spin his listing into a fourth week, to see what else he would try.
by jfiresto
Mon Sep 23, 2019 3:20 pm
Forum: Illumination Techniques
Topic: Microscope fan cooled illuminator
Replies: 8
Views: 1051

Re: Microscope fan cooled illuminator

As in a Peltier cooler?

I might try a larger, very low noise and slow turning fan. You don't need a great deal of air flow to markedly increase a heat sink's efficiency.
by jfiresto
Mon Sep 23, 2019 2:54 pm
Forum: For forum members who want to buy and sell equipment
Topic: WOW. and only $71,409.00
Replies: 3
Views: 583

Re: WOW. and only $71,409.00

They seem to be impatient sellers and have already dropped the price to $295 + shipping. I tried to buy a microscope last year, but gave up as the seller kept changing their mind. They kept changing the buy it now price, the starting price and if it should be on auction (the seller let none of three...
by jfiresto
Sun Sep 22, 2019 7:10 am
Forum: Digital processing
Topic: Motic Image Plus for Mac
Replies: 10
Views: 1389

Re: Motic Image Plus for Mac

I am sure your help was appreciated! Besides, the misdirection was probably partly my fault. I may have been getting too familiar with Michael's problem and should have answered with a touch of proper aloofness.
by jfiresto
Sat Sep 21, 2019 4:51 pm
Forum: Digital processing
Topic: Motic Image Plus for Mac
Replies: 10
Views: 1389

Re: Motic Image Plus for Mac

I will take your word for it. I can see the Images Plus links under Members . If I click on one of them, the site asks me to login. After I do, it updates the page, hides the links and replaces them with: Members There is no software update compatible to your registered product, please proceed to th...
by jfiresto
Sat Sep 21, 2019 2:59 pm
Forum: Digital processing
Topic: Motic Image Plus for Mac
Replies: 10
Views: 1389

Re: Motic Image Plus for Mac

It appears you first need to register the camera to download the current Mac or Windows software, but then updates are free, whatever that means.
by jfiresto
Mon Sep 09, 2019 5:04 pm
Forum: Microscopes and optics
Topic: Stereo Triocular or Binocular
Replies: 25
Views: 1236

Re: Stereo Triocular or Binocular

... As far as I know there are stereo microscopes today with an n.a. up to 0,65 - but for the price of them you could buy a new car or two.... Yes, I have been thinking of simple and realistically affordable, achromatic stereo microscopes. I should have written that and emphasized it is a matter of...
by jfiresto
Mon Sep 09, 2019 4:16 pm
Forum: Microscopes and optics
Topic: Stereo Triocular or Binocular
Replies: 25
Views: 1236

Re: Stereo Triocular or Binocular

Perhaps a helpful tidbit. In photographic units, the largest effective aperture of the Wild CMO microscopes I muck with, is around f7.
by jfiresto
Mon Sep 09, 2019 3:59 pm
Forum: Microscopes and optics
Topic: Stereo Triocular or Binocular
Replies: 25
Views: 1236

Re: Stereo Triocular or Binocular

... I know to avoid twin objective Greenough design, as apparently his is not ideal for photography, and the CMO design which uses a single objective is better suited to the job.... As Bob wrote, all stereo microscopes are less suitable for photography: their twin optical paths would make the micro...
by jfiresto
Mon Sep 09, 2019 2:16 pm
Forum: Microscopes and optics
Topic: Stereo Triocular or Binocular
Replies: 25
Views: 1236

Re: Stereo Triocular or Binocular

A possible advantage to consider, and it may be of no significance, is that with a zoom microscope, you could make the subject fill more of the camera's pixels. This may prove noticeable if the camera has less resolution than the objective. The decent stereo microscopes that are available to you, ho...
by jfiresto
Mon Sep 09, 2019 12:56 pm
Forum: Microscopes and optics
Topic: Stereo Triocular or Binocular
Replies: 25
Views: 1236

Re: Stereo Triocular or Binocular

The head of a microscope sales and service company warned me that the weight of the camera on an eyepiece tube was not good for it. I have no idea how much truth is in that. I eventually snarfed a 1970s-era photo tube off ebay, to make the microscope trinocular, along with a mating 1X (optics-free) ...
by jfiresto
Sun Sep 08, 2019 2:30 pm
Forum: Home-made microscope adaptations
Topic: EOS 4000D modification
Replies: 5
Views: 495

Re: EOS 4000D modification

Good job modding the camera to run off the mains. I have been buying the dummy batteries and then wiring them up to compact, desktop switching power supplies. Here is an adapter I found by searching AlixExpress for "Canon 4000D dummy battery". Three months ago, I bought the variant for an Olympus Pe...
by jfiresto
Mon Sep 02, 2019 9:31 pm
Forum: Beginner's corner
Topic: Connecting dslr camera to trinocular tube
Replies: 6
Views: 596

Re: Connecting dslr camera to trinocular tube

The E200 brochure shows the pieces that can go into the phototube to attach a camera:

nikon_e200_c_mount.gif
nikon_e200_c_mount.gif (10.93 KiB) Viewed 580 times

They provide the C-mount. This page has component drawings. I better stop there as I am not a Nikon guy.
by jfiresto
Mon Sep 02, 2019 9:05 pm
Forum: Beginner's corner
Topic: Connecting dslr camera to trinocular tube
Replies: 6
Views: 596

Re: Connecting dslr camera to trinocular tube

If the it ends with a c-mount, the photo tube already has a lens that should project a real image, 17.526 mm above the flange. The crux is then: what is the diameter of that image and does it need correction? You will need a relay lens between the c-mount and a DSLR camera, to enlarge the image and ...
by jfiresto
Mon Sep 02, 2019 8:01 pm
Forum: Camera systems and imaging
Topic: Smartphone adapter
Replies: 12
Views: 966

Re: Smartphone adapter

I think I may pick up a Celestron NexYZ camera adapter the next time I am in the U.S. I have an AO series 40, student microscope to use it on, once I regrease the focus rack and pinion. The microscope has fixed, high eyepoint eyepieces, is quite sturdy and should have no problem supporting a cell ph...
by jfiresto
Sun Sep 01, 2019 7:01 pm
Forum: Camera systems and imaging
Topic: Smartphone adapter
Replies: 12
Views: 966

Re: Smartphone adapter

MicroBob wrote:Hi together,
our colleagues from Bonn have written an honest review of a smartphone adapter: http://www.mikroskopie-bonn.de/biblioth ... k/274.html

It is quite expensive....
Is this the one? I would not grumble if all my photo adapters cost that much.
by jfiresto
Sun Jul 21, 2019 7:29 am
Forum: Beginner's corner
Topic: How important is the right eyepiece?
Replies: 6
Views: 896

Re: How important is the right eyepiece?

bcjolly wrote:I recently purchased an American Optical 110 microscope ... with cat#145 eyepiece[s]....
Is the microscope parfocal?
by jfiresto
Sun Jul 21, 2019 7:00 am
Forum: Beginner's corner
Topic: How important is the right eyepiece?
Replies: 6
Views: 896

Re: How important is the right eyepiece?

Have you seen this page, with the words "eyepieces are quite forgiving", thats links to another with the title: "If it looks Good, it is Good"? I pass on the positive waves.
by jfiresto
Fri Jul 19, 2019 11:06 am
Forum: Camera systems and imaging
Topic: Microscope Cameras?
Replies: 210
Views: 23534

Re: Microscope Cameras?

... I guess the moral of the story is that not all Chinese made budget to mid-price microscopes are necessarily of poor quality, and can be a good starting point for someone starting out in microscopy, with them likely to encourage, as opposed to discourage.... The big lesson I draw from the story ...
by jfiresto
Thu Jul 18, 2019 5:43 pm
Forum: Beginner's corner
Topic: Microscope Cameras from Microscop Manufactures VS Other
Replies: 28
Views: 2153

Re: Microscope Cameras from Microscop Manufactures VS Other

Roldorf wrote:... Hi just looked on net and at my camera. There is no way to get the battery door off without dismantling the base of the camera and I see no replacement battery doors on the internet....
That is a shame. The door on my Olympus E-PL7 pulls out and pops back in, as it does for this guy.
by jfiresto
Thu Jul 18, 2019 4:13 pm
Forum: Beginner's corner
Topic: Microscope Cameras from Microscop Manufactures VS Other
Replies: 28
Views: 2153

Re: Microscope Cameras from Microscop Manufactures VS Other

... (You can always make a slot in the battery cover for the cable to exit) as long as you don't mind invalidating the warranty. How hard is it to change the battery cover, and later restore the unmodified original when you need to? Olympus only wanted 4,90 euros for a replacement cover for my came...
by jfiresto
Thu Jul 18, 2019 2:09 pm
Forum: Beginner's corner
Topic: Microscope Cameras from Microscop Manufactures VS Other
Replies: 28
Views: 2153

Re: Microscope Cameras from Microscop Manufactures VS Other

Edit: Removed post as I thought you were a beginner (it is in beginners section), but I see by reading your signature that you already have a 18mp camera, so my post was irrelevant. And I was going to suggest how you might power a camera off 230V, but I can no longer find the post. It is a current ...
by jfiresto
Thu Jul 18, 2019 6:23 am
Forum: Beginner's corner
Topic: Microscope Cameras from Microscop Manufactures VS Other
Replies: 28
Views: 2153

Re: Microscope Cameras from Microscop Manufactures VS Other

Not sure what I made up my mind about? Just researching and presenting the facts to the best of my ability. Oh, there is nothing wrong with that. But when you do, I hope you collect and present the facts in pursuit of what is good and true. In that regard, I am not sure just how far you will get, c...
by jfiresto
Wed Jul 17, 2019 9:00 pm
Forum: Beginner's corner
Topic: Microscope Cameras from Microscop Manufactures VS Other
Replies: 28
Views: 2153

Re: Microscope Cameras from Microscop Manufactures VS Other

I suspect that the software that comes with the cameras is escalating the price?... Yes, that "overhead" per camera, if you want to call it that, is much higher because similar development costs have to be spread over much fewer units. On the other hand, if you buy Leica's camera for one of their m...