I will add one of those $120 PlanApo 20x objectives, the ones with branding.
Also hunt for a 10x cheap fluorite and 4x achromatic to use as finders.
Search found 108 matches
- Mon Mar 25, 2024 4:32 am
- Forum: Microscopes and optics
- Topic: Do I need another objective?
- Replies: 46
- Views: 1346
- Wed Mar 20, 2024 1:13 am
- Forum: Microscopy accessories
- Topic: 1/4 wave filter source
- Replies: 13
- Views: 1737
Re: 1/4 wave filter source
The one I pulled apart must be very cheap or very old then, unfortunate. I have seen film type waveplates for less than $20 for a 50x50mm square. Supposedly they are used for screens.
- Thu Mar 14, 2024 5:08 am
- Forum: Microscopy accessories
- Topic: 1/4 wave filter source
- Replies: 13
- Views: 1737
Re: 1/4 wave filter source
A circular polariser consists of a 1/4 λ plate and a linear polariser. If you have one lying around, take it apart and you have your waveplate with an additional linear polariser.
- Thu Mar 07, 2024 4:12 am
- Forum: Microscopes and optics
- Topic: Olympus CX43 any thoughts ,made in China apparently
- Replies: 19
- Views: 886
Re: Olympus CX43 any thoughts ,made in China apparently
The modern CX3 line are all mostly made in china, that does not mean a decrease in quality. As products go, you usually get what you paid for. They are still quite expensive, no more or less when they were produced in Japan. I cannot imagine a cx43 with phase contrast selling for similar prices to a...
- Thu Mar 07, 2024 3:59 am
- Forum: My microscope
- Topic: My old 70s Japanese Denkar microscope
- Replies: 5
- Views: 374
Re: My old 70s Japanese Denkar microscope
Denkar was one of the many many white labelled Japanese optical products, others include Kenko, Sumo, Tasco, KKK-kogaku (yes, really :roll: ) and so on. Unless it has a made in Japan signage, you can probably assume it came from one of the few Chinese optics factories. The famous Swift field microsc...
- Mon Mar 04, 2024 4:32 am
- Forum: Camera systems and imaging
- Topic: How do you deal with the glare in camera
- Replies: 8
- Views: 1154
Re: How do you deal with the glare in camera
Stick them into your tube.
- Mon Mar 04, 2024 4:24 am
- Forum: Microscopes and optics
- Topic: Microscope storage/portability options
- Replies: 4
- Views: 562
Re: Microscope storage/portability options
I transported half a dozen with a commercial removalist, no damage. All scopes broken down. I sourced original boxes from Evident, when possible. For critical parts such as objectives and condensers, I did it myself with a Pelican case. Key is complete removal of all user-removable parts, otherwise,...
- Mon Mar 04, 2024 4:21 am
- Forum: Microscopy accessories
- Topic: Mystery Nikon Magnifier
- Replies: 8
- Views: 1122
Re: Mystery Nikon Magnifier
As originally stated: although the lower lens element works as a very nice ‘magnifying glass’ … I haven’t found any setting where the complete device will achieve focus ! … from which I would deduce that it is intended to work in conjunction with other optics, rather than just being a loupe. Michae...
- Mon Mar 04, 2024 4:17 am
- Forum: Microscopes and optics
- Topic: Olympus BH2 versus BX series..how does one decide?
- Replies: 6
- Views: 628
Re: Olympus BH2 versus BX series..how does one decide?
It depends on what you want. If you want a first scope to mess around and then sell at a minimal loss, or even a small profit, the BH2 is pretty good. If you want a petrography microscope, I would personally choose the BH2 because parts are cheaper. A BX petrographic microscope would run you half a ...
- Tue Feb 20, 2024 2:58 am
- Forum: Microscopy accessories
- Topic: Olympus BH2 Magnification Changer
- Replies: 4
- Views: 647
- Tue Feb 20, 2024 2:39 am
- Forum: My microscope
- Topic: как устроен механический тубус ortholux2 как можно перевести на бесконечную оптику,
- Replies: 5
- Views: 897
Re: как устроен механический тубус ortholux2 как можно перевести на бесконечную оптику,
I don't think it is possible to change a finite optics microscope to infinity-corrected. You would be better off getting higher-grade finite optics for your Ortholux 2. Main advantage of infinity systems is ability to insert additional attachments into infinity space. Being a beginner, it is not so...
- Tue Feb 20, 2024 2:30 am
- Forum: My microscope
- Topic: Does Anybody Recognize this Inverted 'Scope?
- Replies: 33
- Views: 3431
Re: Does Anybody Recognize this Inverted 'Scope?
The logo says 上海 which means Shanghai, likely it came from one of the three or four state-run optics enterprises back in the days. It does not indicate which factory, but perhaps a nameplate at the back would say something like 上海光學三廠 (Shanghai optics Co 3rd factory), indicating its origin. I own a ...
- Tue Jan 23, 2024 3:19 am
- Forum: Microscopy accessories
- Topic: Mystery Nikon Magnifier
- Replies: 8
- Views: 1122
Re: Mystery Nikon Magnifier
Fine focus assist to be used with a camera mount apparatus that had its own eyepiece, it mounts onto the eyepiece.
- Wed Jan 10, 2024 4:33 am
- Forum: Microscopes and optics
- Topic: Olympus UPlanAPO 40x/1.00 Oil iris?
- Replies: 6
- Views: 6910
Re: Olympus UPlanAPO 40x/1.00 Oil iris?
1. Higher RI so that NA 1 oil will be brighter than an NA 0.95 dry, most immersion oil RI ~ 1.52 (e-line), air ~1.00. This means a brighter fluorescence signal and better matched RI to the glass slip. 2. The 1.0 oil one does not care about the thickness of your coverslip (well unless it is thicker t...
- Wed Jan 10, 2024 4:20 am
- Forum: Microscopes and optics
- Topic: Correction Collar : Leitz [surprise]
- Replies: 11
- Views: 12630
Re: Correction Collar : Leitz [surprise]
That is totally BS, the effect can be demonstrated easily and 0.7 NA is already high enough to see the adverse effects of spherical aberration. Zeiss even made spehrical aberration compensation slides with a glass wedge. Either during that time, imaging systems were lacklustre and thus the effect wa...
- Wed Jan 10, 2024 4:12 am
- Forum: Illumination Techniques
- Topic: Brightfield cube in U-RFAA (Olympus), compatible with DICR?
- Replies: 3
- Views: 5387
Re: Brightfield cube in U-RFAA (Olympus), compatible with DICR?
1. Works 2. Why change to Halogen? PE-300 would work well. 3. No, unless you only want the polarisers always crossed which limits functionality. -1: one rotatable analyser, no passthrough slot -2: with passthrough slot -3: same as above but there are lots of fakes from a Nanjing factory flooding the...
- Tue Jan 09, 2024 7:05 am
- Forum: Beginner's corner
- Topic: Inverted scope
- Replies: 14
- Views: 12972
Re: Inverted scope
There's gotta be something to that configuration for Nikon to build their entire super-resolution line around it, in addition to their line-up of conventional inverted scopes . All of these techniques are available for upright as well. Nikon like the other 3 are selling their top-line inverted micr...
- Thu Dec 28, 2023 2:47 pm
- Forum: Pictures and Videos
- Topic: Hela Cells fluorescence DIC
- Replies: 2
- Views: 1582
Hela Cells fluorescence DIC
40x.
Nucles stained with DAPI.
- Mon Dec 25, 2023 6:54 am
- Forum: Illumination Techniques
- Topic: Does phase contrast make sense for its price?
- Replies: 49
- Views: 32385
Re: Does phase contrast make sense for its price?
Thanks. I'm a bit confused: Get an abbe condenser which allows inserts to be placed at the back focal plane of the objective? My understanding is, I need to DYI a slide like the picture above, and also need to insert a varel ring at the back focal plane of the objective, right? The varel ring is ki...
- Tue Dec 19, 2023 2:19 am
- Forum: Specimens, samples and slides
- Topic: Petrographic Microscope Slides
- Replies: 7
- Views: 3380
Re: Petrographic Microscope Slides
I will be reluctantly selling off a large collection of petrographic slides soon, which includes some very large (X2 size of normal slide) meteorite (ll3 with small chondrules) slides that I specifically ordered.
I am planning to downsize my slide collection, so keep an eye.
I am planning to downsize my slide collection, so keep an eye.
- Tue Dec 19, 2023 2:04 am
- Forum: Illumination Techniques
- Topic: Does phase contrast make sense for its price?
- Replies: 49
- Views: 32385
Re: Does phase contrast make sense for its price?
Whatever trick is welcome: I see Zeiss has a technique called Varel, but very little information on the internet, have you seen anyone using it? This is something you can absolutely DIY. Get an abbe condenser which allows inserts to be placed at the back focal plane of the objective, and make yours...
- Tue Dec 19, 2023 1:56 am
- Forum: Beginner's corner
- Topic: Stage Plate, Frosted or Clear?
- Replies: 13
- Views: 6805
Re: Stage Plate, Frosted or Clear?
Why not both, they are less than $10 a pop from China and the quality is pretty good.
Additionally, get yourself a 2-sided black/white plate too.
Additionally, get yourself a 2-sided black/white plate too.
- Thu Dec 14, 2023 3:47 am
- Forum: Home-made microscope adaptations
- Topic: DIY: Motorized nosepiece control?
- Replies: 1
- Views: 2042
Re: DIY: Motorized nosepiece control?
Yeah, it uses a stepper motor and hall effect sensors to ascertain the position. I have fixed a couple with modified plugs before. The pinout is easy to trace if you get a hold of one and open it up, simply loosen the two screws on the top. There are service manuals for the nosepiece, however, I hav...
- Sun Dec 10, 2023 3:32 am
- Forum: Pictures and Videos
- Topic: Hydra extending tentacles, higher magnification
- Replies: 3
- Views: 1320
- Sat Dec 09, 2023 1:44 pm
- Forum: Pictures and Videos
- Topic: Hydra extending tentacles, higher magnification
- Replies: 3
- Views: 1320
Hydra extending tentacles, higher magnification
16x, 32x, 64x and 120x.
No scales and I will not use them again, I like dynamic zoom.
- Wed Dec 06, 2023 6:38 am
- Forum: Pictures and Videos
- Topic: Clitellate worm: Naididae
- Replies: 3
- Views: 878
Re: Clitellate worm: Naididae
Hi David,
Not at all, no. I sent a series of images to someone I know and he provided the ID.
- Mon Dec 04, 2023 2:34 pm
- Forum: Pictures and Videos
- Topic: Clitellate worm: Naididae
- Replies: 3
- Views: 878
- Fri Dec 01, 2023 3:15 pm
- Forum: Pictures and Videos
- Topic: Stentor
- Replies: 1
- Views: 811
- Thu Nov 30, 2023 9:04 am
- Forum: Pictures and Videos
- Topic: Cyclops sp. larva nauplius
- Replies: 2
- Views: 829
Re: Cyclops sp. larva nauplius
I've never seen one of those before! Is he under a cover glass on the slide, which is why he's not hopping all around? Also, what magnification is that? Thanks for sharing. Fished it out with a plankton net. The microbe is under a glass slide, probably compressed enough so it cannot move. I do not ...
- Wed Nov 29, 2023 2:17 am
- Forum: Home-made microscope adaptations
- Topic: Working in an "universal condenser" for Nikon Optiphot
- Replies: 82
- Views: 74871
Re: Working in an "universal condenser" for Nikon Optiphot
For DIC to work, you need to know the focal length of the condenser too, otherwise you are just gambling.
Ideally, you want the focal length to be the same as a proper universal condenser. This is totally doable but not trivial.
Ideally, you want the focal length to be the same as a proper universal condenser. This is totally doable but not trivial.