As in, degrade the image / add aberrations?Scarodactyl wrote: ↑Tue Nov 16, 2021 2:50 pmMoving the eyepiece out of position to change the size of the image will have an effect on the image....
Search found 342 matches
- Tue Nov 16, 2021 4:11 pm
- Forum: Microscopes and optics
- Topic: Stereo microscope photo port projection lens not parfocal with eyepieces
- Replies: 38
- Views: 10121
Re: Stereo microscope photo port projection lens not parfocal with eyepieces
- Sat Nov 06, 2021 7:29 pm
- Forum: Microscopes and optics
- Topic: Olympus VMZ VS Olympus SZ-3060, fight!!
- Replies: 18
- Views: 5019
Re: Olympus VMZ VS Olympus SZ-3060, fight!!
... I read somewhere in the forums that even the Nikon SMZ 10 (older, not the new 10A) and SMZ 2T/2B models have some doming at low magnifications.... I believe I can confirm just how domed, if you are interested, as I now have my father's SMZ-2T. The only issue is that instead of sliding onto a st...
- Sat Oct 30, 2021 5:53 pm
- Forum: Home-made microscope adaptations
- Topic: Do you think that would work for a led conversion?
- Replies: 61
- Views: 16026
Re: Do you think that would work for a led conversion?
The LM2596 is a classic. If you do not mind the design, another possibility might be a linear, constant current LED driver with a PWM input, of the sort some automotive makers favor, for example a TLE4242G . I have a few small boards using them that I salvaged from junked tail lights. I have not che...
- Sat Oct 30, 2021 3:40 pm
- Forum: Home-made microscope adaptations
- Topic: Do you think that would work for a led conversion?
- Replies: 61
- Views: 16026
Re: Do you think that would work for a led conversion?
Not to mention that it will probably start wearing out within a few hundred adjustment cycles.MichaelG. wrote: ↑Sat Oct 30, 2021 2:10 pmBuck converters like this: https://www.ebay.co.uk/itm/353674625191 are widely available at various prices
But note that the tiny preset ‘pot’ is inconvenient for use as a dimmer....
- Sat Oct 30, 2021 9:58 am
- Forum: Home-made microscope adaptations
- Topic: Do you think that would work for a led conversion?
- Replies: 61
- Views: 16026
Re: Do you think that would work for a led conversion?
.... LED brightness is roughly proportional the the current that passes through the LED. Hence controlling the current is the proper brightness control.... That is often an acceptable to the better approach near an LED's "binning" or "grouping" current, the current at which it is tested and sorted....
- Wed Oct 27, 2021 7:55 am
- Forum: Camera systems and imaging
- Topic: Best software to use with Amscope camera & 'scope?
- Replies: 15
- Views: 10820
Re: Best software to use with Amscope camera & 'scope?
... No idea why some of my text has appeared in Italics :? It appears to be from putting "I think" inside square brackets, [ ], where the open-bracket plus I excites the forum software. To test the camera+0.5X adapter, you could try holding it inside an eyepiece tube to see what it makes of the int...
- Mon Oct 25, 2021 1:07 pm
- Forum: Microscopes and optics
- Topic: Stereo Zoom Microscope Questions
- Replies: 21
- Views: 4886
Re: Stereo Zoom Microscope Questions
Ohhhh, I should have started my reply that I am thinking positive waves, that the four days could be a pregnant pause.
It would be fun to play with a simul-focal Amscope to fully realize what it is about.
It would be fun to play with a simul-focal Amscope to fully realize what it is about.
- Mon Oct 25, 2021 11:09 am
- Forum: Microscopes and optics
- Topic: Stereo Zoom Microscope Questions
- Replies: 21
- Views: 4886
Re: Stereo Zoom Microscope Questions
Think positive waves. The OP has only been away for four days, perhaps for a long weekend or a few experiments?
- Mon Oct 25, 2021 9:55 am
- Forum: Microscopes and optics
- Topic: Stereo Zoom Microscope Questions
- Replies: 21
- Views: 4886
Re: Stereo Zoom Microscope Questions
If high quality photos are the main objective (flat fields, lacking aberration), and the budget is under $500, you might want to consider something else (macro rig, macroscope, something like a Wild 3c with a movable camera port, etc.) beside a conventional stereo zoom microscope.... Or perhaps a G...
- Mon Oct 25, 2021 9:36 am
- Forum: Microscopes and optics
- Topic: Stereo Zoom Microscope Questions
- Replies: 21
- Views: 4886
Re: Stereo Zoom Microscope Questions
Here too, I've never understood what this "simul-focal" actually mean. ? I think simul-focal is Amscope-speak for: the camera "can be used simultaneously with both eyepieces" [by design] the camera and the eyepieces both stay in focus as you zoom in and out [in practice]. The first implies the micr...
- Tue Oct 19, 2021 3:04 pm
- Forum: Camera systems and imaging
- Topic: Best software to use with Amscope camera & 'scope?
- Replies: 15
- Views: 10820
Re: Best software to use with Amscope camera & 'scope?
Are you using a ring light? That could explain some loss of contrast. If my microscopes were not presently works in progress, I would take some images of a one euro coin illuminated with a ring light vs. dual, gooseneck spots – to show the difference.
- Sun Jul 18, 2021 6:48 am
- Forum: For forum members who want to buy and sell equipment
- Topic: Wanted: Wild stereo metal hood
- Replies: 17
- Views: 10188
Re: Wanted: Wild stereo metal hood
I was also going to suggest that: getting a Zarges case and having a foam shop make some custom inserts to organize the microscope and accessories.
- Sat Jun 26, 2021 7:26 am
- Forum: Microscopes and optics
- Topic: What are the quality criteria for stereo microscopes?
- Replies: 18
- Views: 5504
Re: What are the quality criteria for stereo microscopes?
Hi Riku! Also, some CMO models will have the possibility to slide the objective to coincide with just one of the two optical paths - clear benefits for photography. I don't think this possibility exists with Greenough stereos.... Since a (competent) Greenough always coincides, the standard trick is ...
- Thu Jun 10, 2021 4:09 pm
- Forum: Beginner's corner
- Topic: Adapting a computer monitor arm for B&L SZ4 boom stand??
- Replies: 31
- Views: 10900
Re: Adapting a computer monitor arm for B&L SZ4 boom stand??
I bet this would be a tolerably rigid microscope stand, but perhaps too much for the ceiling:
- Mon Apr 05, 2021 9:56 am
- Forum: For forum members who want to buy and sell equipment
- Topic: wanted Stereo Microscope for electronic work
- Replies: 9
- Views: 3299
Re: wanted Stereo Microscope for electronic work
That shipping cost is very reasonable and a lot less that I usually see quoted on e-bay but I'd have to find a suitable head first and that won't be as easy as it should be. I offer it up as another possibility as there are decades worth of parts you can interchange among the Wild/Leica M-series st...
- Mon Apr 05, 2021 6:21 am
- Forum: For forum members who want to buy and sell equipment
- Topic: wanted Stereo Microscope for electronic work
- Replies: 9
- Views: 3299
Re: wanted Stereo Microscope for electronic work
If you can find a Leica/Wild binocular head, like this one and some adjustable eyepieces, for example, from China, I have the other, lower half, that I am not using from a three-step (6.4, 16, 40X) Wild M3 ... Hi I really need to buy a single instrument from a single source. The cost of shipping wo...
- Sun Apr 04, 2021 11:30 am
- Forum: For forum members who want to buy and sell equipment
- Topic: wanted Stereo Microscope for electronic work
- Replies: 9
- Views: 3299
Re: wanted Stereo Microscope for electronic work
A Greenough would be OK for my application but I would prefer CMO if it gives a brighter image. A CMO microscope very well should: its objective has much more area. If you can find a Leica/Wild binocular head, like this one and some adjustable eyepieces, for example, from China, I have the other, l...
- Sat Apr 03, 2021 11:12 am
- Forum: For forum members who want to buy and sell equipment
- Topic: wanted Stereo Microscope for electronic work
- Replies: 9
- Views: 3299
Re: wanted Stereo Microscope for electronic work
What are your requirements with regards to: magnification range? zoom vs. stepped magnification? CMO vs Greenough? I ask because I use two CMO microscopes, one zoom and one stepped, that I know were originally used for electronics work over 5–31X magnification and at 12.8, 32 and 80X, respectively.
- Wed Mar 24, 2021 12:18 pm
- Forum: Camera systems and imaging
- Topic: Looking for a good m4/3 camera for focus stacking
- Replies: 10
- Views: 3662
Re: Looking for a good m4/3 camera for focus stacking
[Sorry about the spurious post. I will follow the same thread already in progress over at photomacrography.net.]
- Sat Mar 20, 2021 7:50 pm
- Forum: Microscopes and optics
- Topic: Wild M5a stereo microscope pros and cons?
- Replies: 6
- Views: 3267
Re: Wild M5a stereo microscope pros and cons?
... I very much prefer handling the M3C, M3Z and M8. The vertically mounted zoom knob is just nicer to use than the horizontal wheel on the M5s.... I kind of like rolling the large, horizontal zoom wheel between both hands on the M7 models. I could imagine the wheel, however, could get old if it lu...
- Tue Mar 16, 2021 3:51 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Positively Amscope
- Replies: 7
- Views: 3008
Re: Positively Amscope
Just think of what you could do with 60 000 lumens. Sneeze while you are setting the brightness and your solutions may turn various colors (fourth product image).
- Tue Feb 16, 2021 3:24 pm
- Forum: My microscope
- Topic: My 3 WILD HEERBRUGG microscopes
- Replies: 8
- Views: 3041
Re: My 3 WILD HEERBRUGG microscopes
I’ll be sure to contact you so I cease see what you’re doing. I will capture and measure the image from the M7S out of its photo tube, in case that might suggest what you have to work with. I should have done this some time ago, but my first camera adaption went so quickly and well that I did not b...
- Mon Feb 15, 2021 7:35 pm
- Forum: My microscope
- Topic: My 3 WILD HEERBRUGG microscopes
- Replies: 8
- Views: 3041
Re: My 3 WILD HEERBRUGG microscopes
... My only problem is figuring out a way to attach my Nikon cameras to the phototubes. I have some ideas, but may come back to this forum if they don't work. Anyway - here is the M7s with phototube attached and transmitted light base with pol stage.... That is a very nice set of microscopes you ha...
- Fri Feb 12, 2021 2:51 pm
- Forum: Microscopes and optics
- Topic: Buy stereo microscope watchmaker
- Replies: 21
- Views: 8727
Re: Buy stereo microscope watchmaker
... Ill search for smz2b in EU first of all but maybe have to order from US. Trinocular seems rare so might skip it, too bad. Trinocular microscopes are not that rare. I searched ebay.com for sold Nikon microscopes and got six SMZ-2Bs and six SMZ-2Ts. I think the issue is more that Nikon sold many ...
- Tue Feb 09, 2021 3:33 pm
- Forum: Microscopes and optics
- Topic: Buy stereo microscope watchmaker
- Replies: 21
- Views: 8727
Re: Buy stereo microscope watchmaker
This thread has an old version of a list of used microscopes to buy and avoid, written by a company that services and sells them. The SMZ-10 is on the buy list. The SMZ-10 is a Common Main Objective microscope, the other popular design that has just that, rather than the two, smaller objectives you...
- Sun Feb 07, 2021 7:45 pm
- Forum: Microscopes and optics
- Topic: Mad Scientist Glasses
- Replies: 8
- Views: 2837
Re: Mad Scientist Glasses
I bet it is pretty neat if it is like the ones I tried. If only my eyes were just slightly less off spec....
What works for me is a simple, flip down 2.5X stereo magnifier that places a simple, single-element lens before each eyeglass lens.
What works for me is a simple, flip down 2.5X stereo magnifier that places a simple, single-element lens before each eyeglass lens.
- Sun Feb 07, 2021 5:01 pm
- Forum: Microscopes and optics
- Topic: Mad Scientist Glasses
- Replies: 8
- Views: 2837
Re: Mad Scientist Glasses
I wear glasses and had no luck with the Galilean loupes from Eschenbach. My eyes proved too close together for their clip-ons and my right eye's significant, but by no means enormous, cylinder correction was too much for their adjustable, prescription model. I bet Zeiss's Keplerians would be the bus...
- Sun Feb 07, 2021 4:13 pm
- Forum: Microscopes and optics
- Topic: Buy stereo microscope watchmaker
- Replies: 21
- Views: 8727
Re: Buy stereo microscope watchmaker
This was a very good link and got some useful info on other stuffs also, thank you. :) You are welcome. I know very little about watchmaking, but the fellow who created that site seems like a man of helpful, practical wisdom. I will look more into smz-2t. Is it possible to mount a c-mount usb camer...
- Sun Feb 07, 2021 3:21 pm
- Forum: Microscopes and optics
- Topic: Mad Scientist Glasses
- Replies: 8
- Views: 2837
Re: Mad Scientist Glasses
The microscope I am looking at has a 91mm W.D. over 6~32X which is on the low end. The W.D. is somewhat less than twice that if you add an auxiliary objective that halves the magnification.DonSchaeffer wrote: ↑Sun Feb 07, 2021 3:02 pmBy the way, what are typical working distances for stereo microscopes?
- Sun Feb 07, 2021 10:04 am
- Forum: Microscopes and optics
- Topic: Buy stereo microscope watchmaker
- Replies: 21
- Views: 8727
Re: Buy stereo microscope watchmaker
Have you seen this page? Its author is in the U.S. and so recommends microscopes that are plentiful there. My father, a retired geologist/materials scientist, has been quite happy with his Nikon SMZ-2T, the trinocular version of the -2B the watchmaker suggests.