Search found 21 matches
- Sat May 06, 2023 10:17 am
- Forum: Microscopes and optics
- Topic: Olympus condensers BH vs BX
- Replies: 4
- Views: 1198
Re: Olympus condensers BH vs BX
Without extensive testing both finite (BH) and infinity (BX) counterparts, which I have not done, I would not be able to state whether they are optically "identical". However, simple condensers that do not use phase rings, DIC prisms etc., like the condensers that only provide brightfield and darkfi...
- Mon Apr 17, 2023 3:59 am
- Forum: For forum members who want to buy and sell equipment
- Topic: Selling several microscope parts on photomacrography.net
- Replies: 1
- Views: 802
Selling several microscope parts on photomacrography.net
Just a heads-up that I am selling several microscope parts (as well as camera lenses and specialty lenses) on photomacrography.net. The rules are pretty much the same as on MicrobeHunter, as far as I know. See: http://www.photomacrography.net/forum/viewtopic.php?f=30&t=45957 http://www.photomacrogra...
- Fri Dec 23, 2022 6:56 pm
- Forum: Home-made microscope adaptations
- Topic: Looking for a NICE dust cover
- Replies: 25
- Views: 6411
Re: Looking for a NICE dust cover
[...]Maybe transparent plexi display case might look great, but a bit impractical as it would need to be huge.[...] I have considered a lighter alternative. Plexiglas (= acrylic) is quite heavy and a bit expensive, but the best DIY stores sell lightweight semi-transparent plastic panels with hollow...
- Fri Dec 23, 2022 6:29 pm
- Forum: Home-made microscope adaptations
- Topic: Looking for a NICE dust cover
- Replies: 25
- Views: 6411
Re: Looking for a NICE dust cover
The German https://rotri.de/ makes dust covers to measure. You design them in the tool they have available on their web site, then after a few days you get them by mail. They are neither transparent nor semi-transparent, but made of a relatively thin, grey non-woven synthetic cloth that seems to be ...
- Sat Aug 13, 2022 7:31 am
- Forum: Microscopy accessories
- Topic: "Rubber focus knob cover" or a more specific term?
- Replies: 4
- Views: 1947
Re: "Rubber focus knob cover" or a more specific term?
Thanks for the suggestions. Another term I just found is "fine focus rubber boot". My interest in this "thing" at the moment is to reversibly connect a stepper motor to the fine focus knob of an Olympus BX-50 without any modification of the microscope. I am building an adjustable stand for the motor...
- Fri Aug 12, 2022 3:15 pm
- Forum: Microscopy accessories
- Topic: "Rubber focus knob cover" or a more specific term?
- Replies: 4
- Views: 1947
"Rubber focus knob cover" or a more specific term?
I wonder whether the "rubber focus knob cover" often added on top of the fine focus knob of a microscope to provide a more precise/more comfortable handling of the fine focus has a specific name. I am aware that "rubber focus knob cover" is occasionally used for microscopes, but I would like to know...
- Thu Jun 02, 2022 5:39 pm
- Forum: Beginner's corner
- Topic: Strange results in darkfield microscopy - crystals, conspiracy, or something else?
- Replies: 21
- Views: 5655
Re: Strange results in darkfield microscopy - crystals, conspiracy, or something else?
There is a ton of legitimate research around nanotech as delivery agents for drugs, including the so-called "vaccines." They have been working on the stuff for decades. Carbon nanotubes, graphene oxide ribbons, nano-antennas, nano-bubbles, quantum dots, graphene hydroxides, and so on. They are all ...
- Wed May 11, 2022 7:12 am
- Forum: My microscope
- Topic: What is it?
- Replies: 5
- Views: 2069
Re: What is it?
It seems to be a Zeiss Stereomicroscope III.
I have a page on this model on my site (note that it is the second picture from the top, not the first): http://www.savazzi.net/photography/zeis ... mic_3.html
I have a page on this model on my site (note that it is the second picture from the top, not the first): http://www.savazzi.net/photography/zeis ... mic_3.html
- Fri Feb 11, 2022 8:40 pm
- Forum: Illumination Techniques
- Topic: SCHOTT Focusing Lens for KL1500 can be opened?
- Replies: 3
- Views: 1598
Re: SCHOTT Focusing Lens for KL1500 can be opened?
I don't have the above Schott lens, but comparable no-brand ones. Mine, at least, contain only a planoconvex lens with the flat side facing toward the end of the light guide. The latter is placed at approximately f distance from the lens (where f is the focal length of the lens). There is no diffuse...
- Wed Jan 26, 2022 8:43 pm
- Forum: Illumination Techniques
- Topic: Experiences with Amscope LED fiberoptic illuminators?
- Replies: 6
- Views: 3092
Re: Experiences with Amscope LED fiberoptic illuminators?
Great review, thanks Enrico ! Is heatsink directly attached to the faceplate for the better heat transfer ? How are vibrations from fans ? No, the heatsink is attached to the mostly plastic collet and mount for the light guide, which in turn is attached to the front panel. The clamp for the optical...
- Wed Jan 26, 2022 8:29 pm
- Forum: Illumination Techniques
- Topic: Experiences with Amscope LED fiberoptic illuminators?
- Replies: 6
- Views: 3092
Re: Experiences with Amscope LED fiberoptic illuminators?
Thank you for sharing the informative review again (I have previously read other reviews from you and found them helpful)! How do you connect this LED light to your BX50 scope, do you place its fiberoptic output end directly to where BX50's light bulb was? I have not done it yet, but have some part...
- Wed Jan 26, 2022 10:11 am
- Forum: Illumination Techniques
- Topic: Experiences with Amscope LED fiberoptic illuminators?
- Replies: 6
- Views: 3092
Re: Experiences with Amscope LED fiberoptic illuminators?
Apparently no members have tested this illuminator. I now posted my review of the 50 W model on my web site:
http://savazzi.net/photography/amscopeled50w.html
http://savazzi.net/photography/amscopeled50w.html
- Tue Jan 18, 2022 5:37 pm
- Forum: Illumination Techniques
- Topic: Experiences with Amscope LED fiberoptic illuminators?
- Replies: 6
- Views: 3092
Experiences with Amscope LED fiberoptic illuminators?
Does anyone have a hands-on experience with the current Amscope LED fiberoptic illuminators? I am considering the 50 W model which is not excessively expensive compared to other brands (I need plenty of light for DIC, darkfield, epi illumination etc. on stereomicroscopes, photomacroscopes and compou...
- Sun Oct 17, 2021 3:48 pm
- Forum: Microscopy accessories
- Topic: Best practices and construction for dust covers
- Replies: 39
- Views: 27109
Re: Best practices and construction for dust covers
. They used to cover microscopes with glass domes - might be worth looking into https://www.ebay.co.uk/itm/Large-Glass-Dome-Cover-Cloche-Display-Height-50-cm/323861482909 A glass dome would work for a small microscope, such as a teaching-level stereomic. A glass dome big enough to contain a large s...
- Sun Oct 17, 2021 9:02 am
- Forum: Microscopy accessories
- Topic: Best practices and construction for dust covers
- Replies: 39
- Views: 27109
Re: Best practices and construction for dust covers
I have given some thought to the problem of covering my microscopes, but so far have not acted because we have been moving frequently the past few years, and did not want to increase the amount/volume of our stuff to pack and move. So far I made do with large (almost single-blanket size) blue pieces...
- Fri Sep 17, 2021 5:52 pm
- Forum: Specimens, samples and slides
- Topic: Hay (Con)fusion
- Replies: 10
- Views: 5164
Re: Hay (Con)fusion
I had good results by plucking a handful of dry moss off a granite boulder in a public area in Stockholm, Sweden, in the autumn or early winter. I placed it in a small translucent polypropylene jar and filled 3/4 of it with tap water, then left the closed jar a few weeks on the window sill where it ...
- Tue Mar 16, 2021 9:25 pm
- Forum: My microscope
- Topic: My Zeiss
- Replies: 12
- Views: 5655
Re: My Zeiss
I have the exact same stand and coarse focuser. Mine came with a monocular head and a ~3x long-working-distance objective that look typical for a mechanical shop microscope (although I guess they could also be used for hardness tests). The optics were not particularly good, and chromatic aberration ...
- Wed Dec 02, 2020 8:54 am
- Forum: Resources (online, books etc.)
- Topic: Microscopy book
- Replies: 27
- Views: 17224
Re: Microscopy book
[...] Why is serious amateur microscopy not in the mainstream as it was 100-150 years ago? At that time, and earlier during the Victorian period, well-to-do people were expected to cultivate wide-ranging interests in science, history, literature etc. For example, see Lynn Barber 1980: The heyday of...
- Fri Nov 13, 2020 7:32 am
- Forum: For forum members who want to buy and sell equipment
- Topic: Looking for Olympus Photomicro Adapter L
- Replies: 19
- Views: 8239
Re: Looking for Olympus Photomicro Adapter L
Are you sure you need the Photomicro Adapter L? I was under the impression that this was only for the finite era Honestly I’m not sure at all. Would anyone be able to shed more light on this? I suppose it would be necessary to use the adapter if using a photo eyepiece as Scarodactyl suggested. With...
- Wed Sep 09, 2020 8:20 am
- Forum: My microscope
- Topic: Zeiss Photomicroscope optics
- Replies: 1
- Views: 1831
Zeiss Photomicroscope optics
P9080003c.JPG A colorful example of delamination of some internal optics of a Zeiss Photomicroscope (probably one of the telan lenses of the magnification changer, or one of the optics for the film camera built into the stand). I had been gradually building up and completing this microscope for sev...
- Mon Jul 27, 2020 1:07 pm
- Forum: Introduce yourself
- Topic: Hello from Borgholm, Sweden
- Replies: 6
- Views: 3563
Hello from Borgholm, Sweden
So far, transmission optical microscopy has not been one of my main interests, but now that I am retired and will have more time to spend on my hobbies, this might change. I worked over 30 years as a university researcher and teacher in geosciences in a handful of countries, mostly Sweden. Functiona...