Search found 101 matches

by jb89
Tue Feb 04, 2020 9:54 pm
Forum: Microscopy accessories
Topic: Zeiss Universal Dust Cover
Replies: 2
Views: 3091

Zeiss Universal Dust Cover

Hey guys, just looking for a dust cover for my new Universal. It measures about 11inches wide, 30in ish when factoring a camera tall, and 30in deep with lightsource. (28cm*76cm*76cm) I haven't seen anything close to these measurements and was hoping someone knew a good place for them. I'd prefer a d...
by jb89
Tue Feb 04, 2020 9:50 pm
Forum: Microscopy accessories
Topic: Petroscope
Replies: 11
Views: 8362

Re: Petroscope

I occasionally see older(very old) petro scopes for less than $200, generally LOMO or black enamel ones from the early 1900's I would think. I am sure they are good enough for hobby use. Do you have a way to cut thin sections? petrographic samples get expensive fast if you have to have someone else ...
by jb89
Tue Feb 04, 2020 12:58 am
Forum: Microscopes and optics
Topic: Zeiss Universal project
Replies: 22
Views: 15671

Re: Zeiss Universal project

I was able to get a cheap used gear/control set but I am still interested in making some gears. For peace of mind I would prefer steel gears but brass is definitely an easier choice, there are also a few different methods to make the gears. I have a book on this that I will need to pull out of stora...
by jb89
Sun Feb 02, 2020 6:27 am
Forum: Pictures and Videos
Topic: Microchips in brightfield incident light
Replies: 11
Views: 4964

Re: Microchips in brightfield incident light

That's awesome! I've been thinking of grabbing some old silicon wafer dies to look at, they normally come in sets of 50 or 100 for less than $20, if I end up grabbing some I'd offer them to the forum members for the cost of postage. These are a few I was looking at: https://www.ebay.com/itm/49pcs-To...
by jb89
Sat Feb 01, 2020 2:15 am
Forum: Beginner's corner
Topic: Carl Zeiss Axiostar Plus Beginner Question
Replies: 2
Views: 3328

Re: Carl Zeiss Axiostar Plus Beginner Question

Kalisto, Welcome to the forum! I am also out of my element a bit but love microscopes, I am studying geology but love looking at biological specimens (especially live) I can't give you much advice regarding your questions but I think you may be in need of different illumination techniques as opposed...
by jb89
Fri Jan 31, 2020 7:40 pm
Forum: For forum members who want to buy and sell equipment
Topic: WTB: Zeiss Universal parts
Replies: 0
Views: 7743

WTB: Zeiss Universal parts

Currently building a Zeiss Universal to replace my Leitz SM-LUX-POL http://www.microbehunter.com/microscopy-forum/viewtopic.php?f=5&t=8648 Looking for these parts now but I am sure there are odds and ends I haven't realized I need just yet Objectives 63/0.90 Pol PN 460818 Low Priority Edit: Everythi...
by jb89
Fri Jan 31, 2020 9:16 am
Forum: Microscopes and optics
Topic: Zeiss Universal project
Replies: 22
Views: 15671

Re: Zeiss Universal project

I can do a write up fairly soon, there are some things that they didn't mention in the german language write ups and I didn't have the custom tools so I had to improvise a bit. Turning the small gear down and soldering one with new teeth around it would probably be a quick and easy fix, I'll definit...
by jb89
Fri Jan 31, 2020 7:04 am
Forum: Microscopes and optics
Topic: Zeiss Universal project
Replies: 22
Views: 15671

Re: Zeiss Universal project

Thanks for that info MicroBob! Today I took my control knobs apart and no surprise but there are stripped teeth on the fine adjustment gearbox. Bad Gears.png I am going do make the replacement gears in CAD and then see how much it would cost to have them made in steel. I will also try 3D printing th...
by jb89
Thu Jan 30, 2020 5:30 am
Forum: Microscopes and optics
Topic: Zeiss Universal project
Replies: 22
Views: 15671

Re: Zeiss Universal project

Going to reserve this post for Q's and A's from the build process to that it's easy for people to find in the future. Zeiss manuals: http://www.science-info.net/docs/zeiss/ I also have a few manuals that were not listed here that I would like to give to anyone that needs them or would like to host t...
by jb89
Thu Jan 30, 2020 5:17 am
Forum: Microscopes and optics
Topic: Zeiss Universal project
Replies: 22
Views: 15671

Zeiss Universal project

Well I went and bought a Zeiss Universal after talking to wstenberg a bit and I'd like to document me building it as my microscope primarily for geology/thin section microscopy. It's in overall great condition but no fine focus so I will probably need to order a replacement gear. It came with a few ...
by jb89
Mon Jan 27, 2020 7:57 pm
Forum: Beginner's corner
Topic: Choose a first microscope
Replies: 7
Views: 5758

Re: Choose a first microscope

Petar1,

What do you want to do with your microscope? What kind of specimens do you want to look at, what kind of illumination, brightfield, darkfield, DIC etc?

I'm sure someone here can recommend something great for you but having more info would help
by jb89
Mon Jan 27, 2020 6:12 pm
Forum: Beginner's corner
Topic: Stereo Microscope Advice on Upgrade
Replies: 11
Views: 5448

Re: Stereo Microscope Advice on Upgrade

That's a semi-rare deal on an AO stereo star nowadays, though they're definitely great scopes to scoop if you can find a deal. Unfortunately that stand won't work with the head I have on offer--you'd need to get a 76mm stand to go with it. Unfortunately getting a stand with good built in illuminati...
by jb89
Mon Jan 27, 2020 1:09 am
Forum: Beginner's corner
Topic: Stereo Microscope Advice on Upgrade
Replies: 11
Views: 5448

Re: Stereo Microscope Advice on Upgrade

I was able to get an American Optical Stereozoom 570 with a stand, 1.5x Aux lens and lamp for $100; there are some fantastic deals out there if you take your time and wait for them! I recommend these scopes to all of my peers but it seems like the prices have went up/haven't seen any cheap ones late...
by jb89
Mon Jan 27, 2020 12:17 am
Forum: Beginner's corner
Topic: What affects the image produced from two different microscopes?
Replies: 5
Views: 3545

Re: What affects the image produced from two different microscopes?

The images don't allow a comparison. But if you have the impression, that your microscope's image is not allright, they you should check the optics for damages or dirt. Look at the front and back lens with phase telescope and stereo microscope. Shine a flashlight though the tube and check whether i...
by jb89
Sun Jan 26, 2020 6:54 pm
Forum: Beginner's corner
Topic: What affects the image produced from two different microscopes?
Replies: 5
Views: 3545

What affects the image produced from two different microscopes?

At school we have Meiji monocular scopes and some Chinese scopes with plan non-pol objectives that produce really nice images but we have a Leica DM EP that produces images that look like my Leits SM-LUX-POL. This is an image from my SM-LUX-POL. Pic #1.jpg And this is from one of the chinese scopes....
by jb89
Mon Jan 20, 2020 2:24 am
Forum: Beginner's corner
Topic: Zeiss Universal for Transmitted and Incident light microscopy
Replies: 8
Views: 3952

Re: Zeiss Universal for Transmitted and Incident light microscopy

For incident light microscopy you should try do determine what you want to do with it. Incident bright field gives hazy images of low contrast. This improves a lot when polarizers are added. Dark field would give the best image of biological subjects. DIC is used to identify surface irregularities,...
by jb89
Sun Jan 19, 2020 12:25 am
Forum: Beginner's corner
Topic: Zeiss Universal for Transmitted and Incident light microscopy
Replies: 8
Views: 3952

Re: Zeiss Universal for Transmitted and Incident light microscopy

I have a Universal, and there are nosepieces for a single objective as well as turrets for many objectives. It is very easy to switch out nosepieces and condensers when you want to change modes. Minutes or less. It's a popular microscope, and parts come up all the time. Not hard to find most of the...
by jb89
Sat Jan 18, 2020 11:57 pm
Forum: Beginner's corner
Topic: Zeiss Universal for Transmitted and Incident light microscopy
Replies: 8
Views: 3952

Re: Zeiss Universal for Transmitted and Incident light microscopy

Have you had a look here: http://www.science-info.net/docs/zeiss/ ? I hadn't seen that and it seems like the reflected light attachment can use its town turret so you can swap between transmitted and reflected in how ever long it takes you to swap the turrets and condensers back in and out. I have ...
by jb89
Sat Jan 18, 2020 4:54 pm
Forum: Beginner's corner
Topic: Zeiss Universal for Transmitted and Incident light microscopy
Replies: 8
Views: 3952

Zeiss Universal for Transmitted and Incident light microscopy

Hi guys, I've been using my Leitz SM-LUX-POL for a while and it's great for transmitted light but I just can't figure out how to get incident light set up for it and I'm starting to thing that trying to find the objectives for it will cost a fortune. In my search I've occasionally found microscopes ...
by jb89
Thu Nov 14, 2019 6:45 pm
Forum: Illumination Techniques
Topic: Darkfield for AO 570
Replies: 10
Views: 5960

Re: Darkfield for AO 570

I do have the 561S substage base, I'll have to see what I can find as far as high wattage illuminators, thanks!
by jb89
Thu Nov 14, 2019 4:35 pm
Forum: Illumination Techniques
Topic: Darkfield for AO 570
Replies: 10
Views: 5960

Darkfield for AO 570

Just got my AO 570 and it's great, I'd be really interested in setting it up for darkfield, i just don't know what the options are.

Are there existing AO accessories for this or is it a DIY thing?
by jb89
Mon Nov 11, 2019 11:11 pm
Forum: My microscope
Topic: New microscope! AO Stereostar 570
Replies: 8
Views: 5426

Re: New microscope! AO Stereostar 570

Nice find! The 570 is a beautiful scope and it works great. That 1.5x aux is a bit rare, so that's a good bonus. I have a 0.5x on hand at the moment, but your current stand will not work with it iirc. At the very highest extension the glass stage will almost be in focus. The accessories list/manual...
by jb89
Fri Nov 08, 2019 5:08 pm
Forum: My microscope
Topic: New microscope! AO Stereostar 570
Replies: 8
Views: 5426

Re: New microscope! AO Stereostar 570

Scarodactyl -- Ahh gotcha, most of my samples will be pretty large height wise so if it's already close to my max height adjustment it almost certainly wouldn't be practical for me, is that just the specific one you have or is that all of the 0.5x aux lenses? Hobbyst46 -- It's just one light source ...
by jb89
Fri Nov 08, 2019 4:56 am
Forum: My microscope
Topic: New microscope! AO Stereostar 570
Replies: 8
Views: 5426

New microscope! AO Stereostar 570

I've been looking for a stereo scope for a few months and just managed to snag this for about $100 shipped The optics look fantastic, the light is not great but it definitely gets the job done. It came with a 1.5x aux lens which I hadn't even noticed in the original pictures, eventually I would like...
by jb89
Sun Sep 08, 2019 5:49 am
Forum: Microscopy accessories
Topic: Leitz bertrand lens options
Replies: 0
Views: 3486

Leitz bertrand lens options

Hi guys, I'm looking for a bertrand lens for my SM-LUX-POL and I am seeing 3 possible options but wanted to see if anyone else knew more about them 1) Leitz monocular head with bertrand lens https://www.ebay.com/itm/Leitz-Microscope-Monocular-Tube-Bertrand-POL-P-Polarizing-Lens-6X-Eyepiece/383027646...
by jb89
Wed Aug 28, 2019 1:10 am
Forum: Pictures and Videos
Topic: Calcite thin section
Replies: 3
Views: 2677

Re: Calcite thin section

geo_man,

I you're absolutely right!

I am aware of twinning but haven't learned much about it in thin section, guess I gotta keep hitting the books!
by jb89
Mon Aug 26, 2019 10:29 pm
Forum: Pictures and Videos
Topic: Calcite thin section
Replies: 3
Views: 2677

Calcite thin section

Just finished this calcite thin section, it's a fairly soft mineral so it was easy to make at home with sandpaper, I will probably make a new one soon and switch from coarse grit to a finer grit to prevent having the scratches visible in the final product. I am not sure what this pattern is called i...
by jb89
Wed Aug 07, 2019 7:30 pm
Forum: Specimens, samples and slides
Topic: rock and mineral sample give away
Replies: 0
Views: 3319

rock and mineral sample give away

Hey everyone, I am moving to a new apartment and that has spurred me to go through my rocks and minerals, instead of throwing anything out I figured I'd offer them up here. I have some rock billets which would look great as a petrographic thin section but will require a lot of effort. - Billets will...
by jb89
Tue Aug 06, 2019 5:06 am
Forum: Pictures and Videos
Topic: Granite thin section
Replies: 6
Views: 3657

Re: Granite thin section

PeteM, My first one took many many hours, I broke a few slides and had to start all over more times than I'd like to admit. With just the bare essentials it depends greatly on the general hardness of your sample, I had a jasper conglomerate that took me nearly 4 hours of hand griding. A thin section...
by jb89
Mon Aug 05, 2019 8:05 pm
Forum: Pictures and Videos
Topic: Granite thin section
Replies: 6
Views: 3657

Re: Granite thin section

Thanks!

In one of my field books there are instructions for making a DIY/portable polarizing microscope with a hand lens and polarizing film.

It's just generally not useful to use a polarizing scope on hand sample(for rocks, I have no idea about biology) so I have never bothered.