Search found 1538 matches
- Fri Oct 28, 2022 4:58 am
- Forum: Introduce yourself
- Topic: Microscope for video/visual art suggestions needed
- Replies: 8
- Views: 2007
Re: Microscope for video/visual art suggestions needed
I think ideally you're going to want a mitutoyo finescope with maybe a 20x at most. Pricey though, but it's set up for photos and enough working distance for lighting and interaction
- Fri Oct 28, 2022 4:32 am
- Forum: Illumination Techniques
- Topic: DIY Epi Illuminator
- Replies: 25
- Views: 4027
Re: DIY Epi Illuminator
I'm not exactly sure how to interpret this four ray ray tracing diagram.
- Thu Oct 27, 2022 6:51 pm
- Forum: Illumination Techniques
- Topic: DIY Epi Illuminator
- Replies: 25
- Views: 4027
Re: DIY Epi Illuminator
Thorlabs sells some nice aspheric lenses for pretty cheap for this kind of thing that I have had success with. They even have the option of grinding one side of you want diffusion
- Thu Oct 27, 2022 4:01 am
- Forum: Specimens, samples and slides
- Topic: Expensive slide
- Replies: 2
- Views: 1191
Re: Expensive slide
Very nice. H-e works so well but sometimes you wish the anatomists would branch out a little? Anyway, looks like a primo section.
- Thu Oct 27, 2022 3:55 am
- Forum: Microscopes and optics
- Topic: Comparison of the tiny scopes
- Replies: 7
- Views: 1508
Re: Comparison of the tiny scopes
It is a Nikon universal illuminator fitted with a quality single led at about 4 watts, adjustable with voltage dimming. I like the little Nikon lamps and have two of them, both fitted with LEDs. They are equipped with a field iris and have a large collector lens on a helicoid focuser.
- Tue Oct 25, 2022 11:51 pm
- Forum: Microscopes and optics
- Topic: An objective for every situation
- Replies: 6
- Views: 1248
Re: An objective for every situation
I never thought I would collect so many objetives but I seem to have one for just about every need. It looks impressive but there is a lot of duplication. However, several of the objectives have longer working distances than others, which I find that useful when viewing pond water without using a c...
- Mon Oct 24, 2022 3:16 am
- Forum: For forum members who want to buy and sell equipment
- Topic: Buying Olympus parts, lots of stuff for sale.
- Replies: 8
- Views: 1894
Re: Buying Olympus parts, lots of stuff for sale.
I'm familiar with the lens arrangement. It is certainly B&L's finest variable focus achromat condenser. The iris could easily be fixed, but as it works more or less just fine I will leave it as it is. I am now think how to adapt or manufacture a condenser holder for it. Quite a catch, a piece I have...
- Sat Oct 22, 2022 12:35 am
- Forum: Microscopes and optics
- Topic: Comparison of the tiny scopes
- Replies: 7
- Views: 1508
Comparison of the tiny scopes
I was finally able to acquire a very nice Model R example for a song, and so I can post some pictures of its quality. https://i.imgur.com/Iw6OZd3.jpeg This is using a Nikon CF Plan Apo 10x on a full frame B&L Dynazoom with an Optem 50% reduction lens and a Pi HQ camera. The Dynazoom is outfitted wit...
- Mon Oct 17, 2022 11:49 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: Buying Olympus parts, lots of stuff for sale.
- Replies: 8
- Views: 1894
Re: Buying Olympus parts, lots of stuff for sale.
Ah, I bought the B&L condenser. I am hoping it is the variable focus type as I would like it for an ancient Bausch stand of.mine. Anyway, I can say you certainly were easy to work with I have no idea how that condenser works, but I can confidently guess it is a "focus type". There are two dials, on...
- Wed Oct 12, 2022 11:33 pm
- Forum: Beginner's corner
- Topic: Staining Nematodes
- Replies: 6
- Views: 1311
Re: Staining Nematodes
I use phase. The old timers used picric acid to impart a yellow shade, but you probably don't want to do that.
I bet DIC works good.
I bet DIC works good.
- Wed Oct 12, 2022 4:24 pm
- Forum: Beginner's corner
- Topic: I think I need a tutor, OR microscopes for sale
- Replies: 13
- Views: 4101
Re: I think I need a tutor, OR microscopes for sale
This is an old thread but a scope with a mirror and that illuminator and that condenser is an excellent combination and should be able to provide even, bright light to the competent operator. Although small of field and without planar correction, several of those objectives should be able to produce...
- Tue Oct 11, 2022 2:53 am
- Forum: For forum members who want to buy and sell equipment
- Topic: Buying Olympus parts, lots of stuff for sale.
- Replies: 8
- Views: 1894
Re: Buying Olympus parts, lots of stuff for sale.
Perfect! Exactly as I had hoped for. An oblique plate would be nifty, but I think for this one a.good old iris I'm fixing up will do
- Mon Oct 10, 2022 4:31 am
- Forum: Beginner's corner
- Topic: How to Sew a Buttonhole: Tips for Beginners
- Replies: 3
- Views: 1030
Re: Advice on which microscope to purchase?
What would you like to look at?
- Mon Oct 10, 2022 4:29 am
- Forum: For forum members who want to buy and sell equipment
- Topic: Buying Olympus parts, lots of stuff for sale.
- Replies: 8
- Views: 1894
Re: Buying Olympus parts, lots of stuff for sale.
Ah, I bought the B&L condenser. I am hoping it is the variable focus type as I would like it for an ancient Bausch stand of.mine. Anyway, I can say you certainly were easy to work with
- Mon Oct 03, 2022 6:24 pm
- Forum: Specimens, samples and slides
- Topic: DIY prepared slides archive
- Replies: 4
- Views: 1558
Re: DIY prepared slides archive
Glycerin is often described as temporary mounts, but I have some nematodes that were put into 60-70 years ago that look quite good.
- Sun Oct 02, 2022 12:58 pm
- Forum: Specimens, samples and slides
- Topic: DIY prepared slides archive
- Replies: 4
- Views: 1558
Re: DIY prepared slides archive
While temporary mounts are quite simple, making permanent ones is an art of nearly limitless depth. Moreover, each type of sample has different approaches and known solutions. I would recommend firstly checking out the posts here on the subject as well as the subforum devoted to books, of which ther...
- Sun Oct 02, 2022 12:51 pm
- Forum: Beginner's corner
- Topic: View through each eyepice is not aligned with my B&L sz7. How can I fix this?
- Replies: 6
- Views: 1290
Re: View through each eyepice is not aligned with my B&L sz7. How can I fix this?
Thank you! Excellent.
- Sun Oct 02, 2022 12:06 am
- Forum: My microscope
- Topic: My Bausch & Lomb Galen11
- Replies: 4
- Views: 1453
Re: My Bausch & Lomb Galen11
Neat! This is a completely different looking phase setup from the b&l/Leica Galen (plan)phase set I have. I wonder if they are at all compatible.
- Sun Oct 02, 2022 12:00 am
- Forum: Beginner's corner
- Topic: View through each eyepice is not aligned with my B&L sz7. How can I fix this?
- Replies: 6
- Views: 1290
Re: View through each eyepice is not aligned with my B&L sz7. How can I fix this?
Oh, just the mirror on the photo adapter would be ideal. My sz7 works very well, especially with those 15x uwf aerial surveillance eyepieces like you have. It's only when looking through the photo port do I see some issues. Thanks very much! I'm glad your instrument is working for you. The sz7 to me...
- Thu Sep 29, 2022 3:53 pm
- Forum: Beginner's corner
- Topic: I need stuff!
- Replies: 8
- Views: 1732
Re: I need stuff!
I have heard of fisher being called the Walmart of science
- Tue Sep 27, 2022 1:29 pm
- Forum: Pictures and Videos
- Topic: What is this on my new microscope? I need help
- Replies: 4
- Views: 1199
Re: What is this on my new microscope? I need help
You might be focusing on the top of the condenser or having some surface of your field light source projected. You did your proper Kohler exercise I assume?
- Tue Sep 20, 2022 3:25 am
- Forum: Microscopes and optics
- Topic: Assembling a Field Microscope (Some Help?)
- Replies: 28
- Views: 4381
Re: Assembling a Field Microscope (Some Help?)
All of.my Zeiss pol objectives are specd to have no coverslip. If that's the case for yours you might want to keep an eye out for a 40x plan lens in the usual coverslip friendly format.
- Tue Sep 13, 2022 6:49 pm
- Forum: Beginner's corner
- Topic: View through each eyepice is not aligned with my B&L sz7. How can I fix this?
- Replies: 6
- Views: 1290
Re: View through each eyepice is not aligned with my B&L sz7. How can I fix this?
I have this same setup. The spring-loaded yokes that carry the lenses can be a bit finicky for sure. Say, could you do me a favor? Could take some photos of the photo adapter, particularly the way the mirror is situated on the retractable arm? I have been having alignment issues and while I think I ...
- Sat Sep 10, 2022 5:03 am
- Forum: Beginner's corner
- Topic: Strong beginner microbiology scope
- Replies: 9
- Views: 1876
Re: Strong beginner microbiology scope
Phase contrast is useful for looking at nematodes which are otherwise pretty transparent. Darkfield also. Phase is very nifty, but you might want to save some of your pennies while learn how to use a microscope as several older, discontinued lines can be found on the second hand market in some cases...
- Wed Aug 31, 2022 1:14 pm
- Forum: Camera systems and imaging
- Topic: Optical system for video
- Replies: 10
- Views: 1828
Re: Optical system for video
Well, there have been many projection eyepieces made. Which one is yours?
- Tue Aug 30, 2022 5:02 am
- Forum: Beginner's corner
- Topic: Newbie basics
- Replies: 2
- Views: 892
Re: Newbie basics
You might try experimenting with several alternates to see if conditions give rise to different mixes of organisms
- Mon Aug 29, 2022 2:35 am
- Forum: My microscope
- Topic: My Zeiss Microscopes
- Replies: 143
- Views: 125841
Re: My Zeiss Microscopes
The trick rex is doing is using coverslips as the slide
- Wed Aug 03, 2022 1:04 am
- Forum: Beginner's corner
- Topic: Light Source Recommendations?
- Replies: 30
- Views: 6274
Re: Light Source Recommendations?
The B&L "toaster" and Nikon universal are good old lamps with field lenses and irises. They can be retrofitted with different lamps if you take notice of where the filament should go. The Nikon actually has a helical focus on it. AO, Tiyoda and lomo made some nice looking lamps too, although I don't...
- Mon Jul 25, 2022 8:01 pm
- Forum: Microscopes and optics
- Topic: What to do with Nikon Fluor 10x in poor condition?
- Replies: 26
- Views: 3677
Re: What to do with Nikon Fluor 10x in poor condition?
Yeah looks good scratches will cause some loss of contrast in proportion to the total surface area they take up which is not much. My Nikon 10x plan apo.has a chip out of it but you don't notice in use, especially as it's such a low power with a big good size front element
- Sun Jul 24, 2022 11:56 pm
- Forum: Beginner's corner
- Topic: 40x doesn't show a clear image.
- Replies: 36
- Views: 6605
Re: 40x doesn't show a clear image.
Yes there is a condenser and I've already tried adjusting it. This whatci do when I use my microscope -take the dust cover off -turn on the microscope light -carefully put in a slide and make sure it is latched in -line up the sample That's pretty much it... Well you might try the focus knobs I guess