Search found 1424 matches
- Fri Dec 04, 2020 10:20 pm
- Forum: Beginner's corner
- Topic: Is it safe to buy Used Microscopes and parts
- Replies: 16
- Views: 5883
Re: Is it safe to buy Used Microscopes and parts
I've bought hundreds of used microscopes and slides...even slides of pathogens. I must be lucky I'm still alive and well.
- Thu Dec 03, 2020 12:23 am
- Forum: Introduce yourself
- Topic: Comparing "toy" vs Professional Microscope Optical Quality
- Replies: 4
- Views: 2655
Re: Comparing "toy" vs Professional Microscope Optical Quality
AntoniScott, This section is for new people to introduce themselves. There are other sections where topics of specimen prep and microscope comparisons can be discussed.
- Tue Dec 01, 2020 10:24 pm
- Forum: Beginner's corner
- Topic: Spot on FoV driving me insane
- Replies: 30
- Views: 8047
Re: Spot on FoV driving me insane
You can rule out the binocular head by rotating it and see if the spot moves. What is that slide just below the head in front?
- Tue Dec 01, 2020 6:28 pm
- Forum: Beginner's corner
- Topic: Cleaning slides lifehack
- Replies: 7
- Views: 3319
Re: Cleaning slides lifehack
I just let them soak in a warm dishwashing soap and water for a few minutes, then clean with a cleaning cloth and then rinse in hot water and as they are drip drying, dry with a lint free cloth.
- Tue Dec 01, 2020 6:24 pm
- Forum: Beginner's corner
- Topic: Swift Objective Lens Question
- Replies: 3
- Views: 1622
Re: Swift Objective Lens Question
I would think D is for DIN and RD is for Retractable DIN. Retractable in that the tip will retract into the barrel when the tip touches the slide.
- Mon Nov 30, 2020 8:29 pm
- Forum: Microscopes and optics
- Topic: Zeiss Achromat-Aplanat 465277 turret condenser - help needed
- Replies: 14
- Views: 4547
Re: Zeiss Achromat-Aplanat 465277 turret condenser - help needed
That's not really too bad shape once you clean it up and blacken the edges. I do believe that is a darkfield stop in there too.
Yes, you are missing the bearing which goes on that spring. Perhaps it fell out as you were disassembling it.
Yes, you are missing the bearing which goes on that spring. Perhaps it fell out as you were disassembling it.
- Sat Nov 28, 2020 3:06 pm
- Forum: Beginner's corner
- Topic: STAINS.. Sooo many these days
- Replies: 7
- Views: 2863
Re: STAINS.. Sooo many these days
This stain uses crystal violet - which creates cancer. In my view one should have some experience in preparation before using stain of this level. It is too easy to stain ones thumb! Happened recently on a group meeting... There is always some type of risk in most chemicals these days. I performed ...
- Sat Nov 28, 2020 3:00 pm
- Forum: Pictures and Videos
- Topic: Actinoptychus sp.
- Replies: 4
- Views: 1648
- Sat Nov 28, 2020 2:56 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Wanted: Zeiss 12v 100w Halogen Lamphouse focusing lens
- Replies: 4
- Views: 1883
Re: Wanted: Zeiss 12v 100w Halogen Lamphouse focusing lens
I just acquired two lamphouses without lamps and can send you the piece. Email me your mailing address.
- Thu Nov 26, 2020 7:37 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: American Optical 20x Infinity Objectives
- Replies: 2
- Views: 1662
Re: American Optical 20x Infinity Objectives
There is an AO 20X 1022 in this lot of objectives. You might ask the seller if he will sell it separately.
https://www.ebay.com/itm/Lot-of-65-Vari ... SwvWFfvqVw
https://www.ebay.com/itm/Lot-of-65-Vari ... SwvWFfvqVw
- Sun Nov 22, 2020 8:01 pm
- Forum: Microscopes and optics
- Topic: Interesting Attachment......ID???
- Replies: 10
- Views: 4512
Re: Interesting Attachment......ID???
Here is a Zeiss point count mechanical stage:
On a Pol scope:
- Sun Nov 22, 2020 7:30 pm
- Forum: Microscopes and optics
- Topic: Interesting Attachment......ID???
- Replies: 10
- Views: 4512
Re: Interesting Attachment......ID???
This is a Leitz mechanical slide holder which goes on a rotating stage for polarizing light microscopy. The bare 'knobs' are fitted with different click stops used in the identification of minerals. The bracket hits the grooves in the different click stops making a click sound as you move the slide ...
- Sat Nov 21, 2020 10:54 pm
- Forum: Beginner's corner
- Topic: Please help in choosing a microscope
- Replies: 2
- Views: 1873
Re: Please help in choosing a microscope
Your question has been asked many times and you can do a search to find them. Ten people will give you ten different suggestions. For a starter look at some of Microbe Hunter's Oliver's YouTube video:
https://www.youtube.com/watch?v=gKeOuec2KVY
https://www.youtube.com/watch?v=rU25mfiXktA
https://www.youtube.com/watch?v=gKeOuec2KVY
https://www.youtube.com/watch?v=rU25mfiXktA
- Thu Nov 12, 2020 12:08 pm
- Forum: Illumination Techniques
- Topic: Achieving oblique illumination with motic ba310e
- Replies: 20
- Views: 9258
Re: Achieving oblique illumination with motic ba310e
Update, in this Facebook thread https://www.facebook.com/100000714246755/videos/3788702834496821/ there is one way to go about it with the BA 310E, I guess it may work with other microscopes as well. If my memory serves me right, I think he uses darkfield with tissue paper to get a DIC effect. Edit...
- Thu Nov 12, 2020 1:23 am
- Forum: Illumination Techniques
- Topic: Achieving oblique illumination with motic ba310e
- Replies: 20
- Views: 9258
Re: Achieving oblique illumination with motic ba310e
It should be easy if there is a filter holder. Make an opaque filter (black) and start sliding it into the filer holder until you get the desired effect in your eyepiece. You can see some design changes you can make for different effects here: https://www.ebay.com/itm/31-MM-Dark-Field-Oblique-Micros...
- Wed Nov 11, 2020 2:57 pm
- Forum: Microscopes and optics
- Topic: So, will I get the optics clean (Wild drawing tube)?
- Replies: 6
- Views: 3218
Re: So, will I get the optics clean (Wild drawing tube)?
Have you tried blowing it out first and then use a long handled soft brush?
- Wed Nov 11, 2020 2:55 pm
- Forum: Beginner's corner
- Topic: What is this? Noobs first day!
- Replies: 13
- Views: 5959
Re: What is this? Noobs first day!
To me, it's obviously a fiber.
- Wed Nov 11, 2020 3:43 am
- Forum: Miscellaneous
- Topic: Mineralogy, Metallurgy
- Replies: 11
- Views: 4833
Re: Mineralogy, Metallurgy
Look for Unitron MPS. With a set of quick mount objectives, they usually run from $100-200. They look like these. The black one is the Unitron MPS and the white one is a Bristol which probably were made by the same company and rebranded.
- Tue Nov 10, 2020 5:44 pm
- Forum: Microscopes and optics
- Topic: Zeiss Standard DIC adapter ring
- Replies: 24
- Views: 8196
Re: Zeiss Standard DIC adapter ring
You can get a lot of the Zeiss manuals on PS Neeley's site: http://www.science-info.net/docs/zeiss/ For Zeiss DIC download the Zeiss-Contrast-Methods
- Tue Nov 10, 2020 5:40 pm
- Forum: Miscellaneous
- Topic: Mineralogy, Metallurgy
- Replies: 11
- Views: 4833
Re: Mineralogy, Metallurgy
The reason thin sections cost so much is because of the labor involved in making one. I think the recommended thickness is 0.03mm for a proper thin sections. Here is nice go by. https://davehirsch.com/other/thinsections/
- Tue Nov 10, 2020 1:25 pm
- Forum: Miscellaneous
- Topic: Mineralogy, Metallurgy
- Replies: 11
- Views: 4833
Re: Mineralogy, Metallurgy
There have been posts of chemicals in polarized light and circuit boards, but I think the main reason you don't see as many would be that the equipment required for mineralogy/metallurgy would be 10x the cost of a basic biological microscope. For proper mineralogy/metallurgy, you will need an analyz...
- Tue Nov 10, 2020 1:01 pm
- Forum: Microscopes and optics
- Topic: Zeiss Standard DIC adapter ring
- Replies: 24
- Views: 8196
Re: Zeiss Standard DIC adapter ring
There was a brownish/dark red adhesive on the sides, so maybe shellac plus some translucent stuff in the threads. 1. These screws were designed to be loosened slightly for proper alignment of the prism in the slider (with standard scope - your pol at east-west, analyzer at north-south, the prism sh...
- Mon Nov 09, 2020 2:04 pm
- Forum: Illumination Techniques
- Topic: zeisz std pol set up..where are your pol filter located
- Replies: 7
- Views: 3475
Re: zeisz std pol set up..where are your pol filter located
That looks like a picture of a dried tear. I've seen where someone made tear slides from different people and you see different effects. Common items you could try is dissolving medication like aspirin, tylenol, callous remover or other chemicals and let dry on a slide. Some dissolve in water or alc...
- Mon Nov 09, 2020 1:58 pm
- Forum: Beginner's corner
- Topic: What İs Spring Objective
- Replies: 4
- Views: 3080
Re: What İs Spring Objective
Just a cautious note: There are 40/45X objective which also have spring loaded tips and should not be used with oil if they are not designated as oil immersion.Greg Howald wrote: ↑Mon Nov 09, 2020 12:31 pmMost spring objects are designed for the use of a drop of oil on the slide.
- Mon Nov 09, 2020 1:55 pm
- Forum: Microscopes and optics
- Topic: Zeiss removable nosepiece cleaning and lubrication
- Replies: 13
- Views: 5430
Re: Zeiss removable nosepiece cleaning and lubrication
Noticed that in my nosepiece, the indexer has indents and the click-stop has an extra bearing. So 60+12+1 bearing balls. You need to put grease to hold this bearing in place during re-asssembly. I am not sure that the indexer, that small piece of metal shown on your second photo, is missing a ball ...
- Sun Nov 08, 2020 10:23 pm
- Forum: Illumination Techniques
- Topic: zeisz std pol set up..where are your pol filter located
- Replies: 7
- Views: 3475
Re: zeisz std pol set up..where are your pol filter located
That will work.
- Sun Nov 08, 2020 10:16 pm
- Forum: Illumination Techniques
- Topic: zeisz std pol set up..where are your pol filter located
- Replies: 7
- Views: 3475
Re: zeisz std pol set up..where are your pol filter located
Here's a better picture showing the rotating analyzer in the intermediate piece and the position of the polarizer under the condenser.
- Sun Nov 08, 2020 9:56 pm
- Forum: Illumination Techniques
- Topic: zeisz std pol set up..where are your pol filter located
- Replies: 7
- Views: 3475
Re: zeisz std pol set up..where are your pol filter located
Here you can see the rotating analyzer circled in red at the base of the scope along with a lambda compensator, and rotating polarizer circled in blue, one attached and one not. The item also circled in red in the intermediate piece is a rotating/tilting compensator. Zeiss Pol.jpg And a picture of a...
- Sun Nov 08, 2020 9:48 pm
- Forum: Illumination Techniques
- Topic: zeisz std pol set up..where are your pol filter located
- Replies: 7
- Views: 3475
Re: zeisz std pol set up..where are your pol filter located
In any pol setup you need one above the specimen and one below the specimen. In a Zeiss 160TL setup, there is a rotating polarizer below the condenser and a slide in or rotating analyzer between the head and objective turret.
- Sun Nov 08, 2020 9:41 pm
- Forum: Introduce yourself
- Topic: Help! I Need to source a bulb for my Leitz SM Lux
- Replies: 3
- Views: 2505
Re: Help! I Need to source a bulb for my Leitz SM Lux
Have you tried ebay? https://www.ebay.com/sch/i.html?_from=R ... =nc&_oac=1
What does it look like?
What does it look like?