Search found 843 matches

by Scarodactyl
Sat Jul 11, 2020 8:04 pm
Forum: Microscopes and optics
Topic: ID this stereoscope?
Replies: 2
Views: 33

Re: ID this stereoscope?

This is a pretty common design, broadly speaking. Any number of Japanese companies might have made it before China emerged as the budget microscope center of thr world. Carton and Kyowa are two of the bigger whitebox makers from that era but there are a lot of Japanese optical firms with fairly limi...
by Scarodactyl
Sat Jul 11, 2020 7:58 pm
Forum: My microscope
Topic: Chinese Wild M3 Clone: It's pretty good! [With comparison to mz6]
Replies: 28
Views: 5941

Re: Chinese Wild M3 Clone: It's pretty good! [With comparison to mz6]

These are all infinity systems, with both the objective alone producing an image focused to infinity and the zoom body producing an image focused to infinity (except the m5 where the mag drum produces a finite image). The head contains one or two (one for the m400, 2 for stereos) 200mm tube lens. Us...
by Scarodactyl
Sat Jul 11, 2020 4:55 pm
Forum: My microscope
Topic: Chinese Wild M3 Clone: It's pretty good! [With comparison to mz6]
Replies: 28
Views: 5941

Re: Chinese Wild M3 Clone: It's pretty good! [With comparison to mz6]

What is the thread diameter on your 1.6x objective? 50mm or 65mm? There were two different m50 threads with different pitch used as I understand it, though I can't remember off the top of my head which is which. I think the M5 used the same pitch as the original M3, and the pitch was changed for the...
by Scarodactyl
Fri Jul 10, 2020 5:23 am
Forum: Microscopes and optics
Topic: Euromex or Motic?
Replies: 54
Views: 444

Re: Euromex or Motic?

Have you taken them apart or something like that to confirm that? Or more just from testing samples and getting the same performance? It'd love to hear more about that (though it may deserve its own thread).
by Scarodactyl
Thu Jul 09, 2020 9:35 pm
Forum: Microscopes and optics
Topic: Euromex or Motic?
Replies: 54
Views: 444

Re: Euromex or Motic?

Most of them seem to follow the broad strokes of Olympus infinity objectives: rms thread, 45mm parfocal and 180mm tube lens. But as to finer points of parfocality and such I am not sure how compatible they would be.
by Scarodactyl
Thu Jul 09, 2020 9:25 pm
Forum: Microscopes and optics
Topic: Euromex or Motic?
Replies: 54
Views: 444

Re: Euromex or Motic?

Usually using an infinite objective as a finite or vice versa results in badly degraded performance but there are exceptions too.
by Scarodactyl
Thu Jul 09, 2020 8:03 pm
Forum: Microscopes and optics
Topic: Fixed Köhler
Replies: 45
Views: 943

Re: Fixed Köhler

Zuul wrote:
Thu Jul 09, 2020 7:28 pm
Perhaps “NeoKöhler” would be better? :D
In olympus lingo this would mean epi brightfield/darkfield kohler, wouldn't it? I'd like to see that.
by Scarodactyl
Thu Jul 09, 2020 2:22 am
Forum: My microscope
Topic: Just Received my Hayear HY500B camera
Replies: 18
Views: 247

Re: Just Received my Hayear HY500B camera

I like it!
I noticed that your photo of the microacope has the same general noise as the camera--is there an added processing step here that might be adding that? The new camera is taking good pictures and I have a feeling the noise isn't inherent to it.
by Scarodactyl
Wed Jul 08, 2020 2:04 am
Forum: Camera systems and imaging
Topic: Bausch & Lomb Balplan Camera Tube
Replies: 17
Views: 152

Re: Bausch & Lomb Balplan Camera Tube

Mine has a lens there but it unscrews and has thr same outer case as your eyepiece adapter.
by Scarodactyl
Wed Jul 08, 2020 1:26 am
Forum: Microscopes and optics
Topic: Please help a microscope noob with objectives
Replies: 14
Views: 127

Re: Please help a microscope noob with objectives

A used low end objectivd in the CF series is probably around 30-40 bucks. Not as cheap as the cheapest Chinese options which may be just as good (but with less certainty on level of corrections). I'll look forward to seeing results from this. 3d printers are tremendously useful in microacopy for thi...
by Scarodactyl
Tue Jul 07, 2020 11:55 pm
Forum: Microscopes and optics
Topic: Please help a microscope noob with objectives
Replies: 14
Views: 127

Re: Please help a microscope noob with objectives

Zuul wrote:
Tue Jul 07, 2020 10:49 pm
Putting Nikon glass on this project would be ... unnecessary. :shock:
I am not sure what you mean by this.

Nikon cf objectives are often available inexpensively, and even the lowest-tier 'e' economical line are pretty good.
by Scarodactyl
Tue Jul 07, 2020 8:26 pm
Forum: Microscopes and optics
Topic: Please help a microscope noob with objectives
Replies: 14
Views: 127

Re: Please help a microscope noob with objectives

Zuul wrote:
Tue Jul 07, 2020 8:24 pm
The scope he is talking about is camera only; no eyepieces. Are there fully corrected 160mm objectives?
Of course--the nikon CF series, and some modern Chinese copies.
by Scarodactyl
Tue Jul 07, 2020 8:18 pm
Forum: Microscopes and optics
Topic: Euromex or Motic?
Replies: 54
Views: 444

Re: Euromex or Motic?

Have you seen good reviews of Radical scopes overall? I have only seen one iirc, but it was very negative.
by Scarodactyl
Tue Jul 07, 2020 6:28 pm
Forum: Microscopes and optics
Topic: Leitz phototube help..
Replies: 6
Views: 456

Re: Leitz phototube help..

It is uncommon and kind of expensive now. It's also pretty much obsolete. It makes more sense to suspend a high quality modern 40 or 50mm lens above the eyepiece in the photo tube rather than the simple 60mmish achromat they provided back in the day. So you just need something that will clamp on the...
by Scarodactyl
Tue Jul 07, 2020 4:43 am
Forum: Microscopes and optics
Topic: Breaking the baffling B & L Balplan buffalo.
Replies: 92
Views: 5293

Re: Breaking the baffling B & L Balplan buffalo.

What is the overall focal lebgth of the lens? It might be interesting to experiment with a normal achromat to get a sense of how vital corrections are--not volunteering to do it myself though, not right now anyway. I think someone tried that a while ago. The only example I've seen was with a microz...
by Scarodactyl
Tue Jul 07, 2020 3:41 am
Forum: Microscopes and optics
Topic: Breaking the baffling B & L Balplan buffalo.
Replies: 92
Views: 5293

Re: Breaking the baffling B & L Balplan buffalo.

What is the overall focal lebgth of the lens? It might be interesting to experiment with a normal achromat to get a sense of how vital corrections are--not volunteering to do it myself though, not right now anyway.
by Scarodactyl
Mon Jul 06, 2020 3:25 am
Forum: For forum members who want to buy and sell equipment
Topic: A.O. bits wanted
Replies: 15
Views: 208

Re: A.O. bits wanted

I have a 1153 I'd be willing to part with. The polarizer shows some delamination but still gets very good extinction when crossed with a known good one, so I guess it is nelow the polarizing layer.
by Scarodactyl
Sun Jul 05, 2020 3:11 am
Forum: Pictures and Videos
Topic: Stomoxys with ticks?
Replies: 5
Views: 162

Re: Stomoxys with ticks?

Mammals, birds, and more rarely reptiles and amphibians. Never insects as far as I know. They do look pretty ticky!
by Scarodactyl
Fri Jul 03, 2020 5:53 pm
Forum: Beginner's corner
Topic: The Dirty Cover Glass Blues
Replies: 25
Views: 781

Re: The Dirty Cover Glass Blues

The blower will sometimes clear eveeything up. If not the one time use pads and fluid do a good job to finish it off.
by Scarodactyl
Fri Jul 03, 2020 12:17 am
Forum: Beginner's corner
Topic: The Dirty Cover Glass Blues
Replies: 25
Views: 781

Re: The Dirty Cover Glass Blues

Camera sensors aren't too bad if you just buy the kit and follow the instructions carefully. Unfortunately my budget won't let me do that every time I want to clean a lens or slide :(
by Scarodactyl
Thu Jul 02, 2020 11:39 pm
Forum: Microscopes and optics
Topic: B&L Balplan
Replies: 27
Views: 887

Re: B&K Balplan

Come to think of it it's really curious the microzoom didn't have an epi df option. Between that and DIC it's weird that the balplan's industrial big brother missed out on two such nice and seemingly relevant features. Maybe it had a pretty narrow set of requirements as a baseline wafer inspector, o...
by Scarodactyl
Thu Jul 02, 2020 9:32 pm
Forum: Beginner's corner
Topic: The Dirty Cover Glass Blues
Replies: 25
Views: 781

Re: The Dirty Cover Glass Blues

Less likely to leave residue I would think. It will dissolve fingerprints easily and help mobilize dust.
by Scarodactyl
Thu Jul 02, 2020 9:00 pm
Forum: Microscopes and optics
Topic: Leica DM
Replies: 14
Views: 559

Re: Leica DM

I wonder if something like copper corner trim (like a really light copper angle iron) could be bent into shape to hug the dovetail. Seems like it might hold everything nicely if it worked, though that'd be a bit of a crapshoot.
by Scarodactyl
Thu Jul 02, 2020 8:43 pm
Forum: Microscopes and optics
Topic: Leitz 42mm head with an erect image?
Replies: 0
Views: 325

Leitz 42mm head with an erect image?

Just a quick question--I have a longer-term project on the back burner to build a Wild-Leitz macrozoom fluorescence system (predecessor to the now-also-discontinued MacroFluo system). I have the adapter and focus mount that holds the parts together, and it takes a 42mm dovetail. I was wondering if a...
by Scarodactyl
Thu Jul 02, 2020 8:17 pm
Forum: Beginner's corner
Topic: The Dirty Cover Glass Blues
Replies: 25
Views: 781

Re: The Dirty Cover Glass Blues

A general cleaning approach is to get a box of q tips and a bottle of isopropyl alcohol, wet one q tip and wipe, use another to soak it up before it can dry, throw each q tip away after one use.
by Scarodactyl
Wed Jul 01, 2020 6:26 am
Forum: Microscopes and optics
Topic: Samsung TV "ultra black" under microscope
Replies: 12
Views: 303

Re: Samsung TV "ultra black" under microscope

Please give some more specific details about the one that works and the one that doesn't.
This is an interesting problem. I would like to know more.
by Scarodactyl
Wed Jul 01, 2020 6:16 am
Forum: Microscopy accessories
Topic: B&L Balplan Pol Adapter
Replies: 12
Views: 352

Re: B&L Balplan Pol Adapter

Incidentally, does anyone know which b&l this one went to? https://www.ebay.com/itm/Bausch-Lomb-Microscope-TV-Camera-Adapter-CAT-42-12-80-Model-JE3040CC/223457755818?hash=item34071ec2aa:g:YUYAAOSwcdxcBuFl I assume it isn't to a balplan? But it also doesn't seem to have any lenses to compensate for t...
by Scarodactyl
Wed Jul 01, 2020 4:03 am
Forum: Microscopy accessories
Topic: B&L Balplan Pol Adapter
Replies: 12
Views: 352

Re: B&L Balplan Pol Adapter

with an adapter sleeve for who-knows-what. ooh, ooh, I do. it's for the older-style threaded camera port on a stereozoom 7. I guess a 42-12-30-15 is what's called for, or at least the 3x adapter from one. I imagine it is vanishingly rare, as I've never seen one. Edit:here's a pm thread about one. L...
by Scarodactyl
Sun Jun 28, 2020 6:54 pm
Forum: Illumination Techniques
Topic: Epi DIC woes
Replies: 44
Views: 2122

Re: Epi DIC woes

Alas, I have already tested the polarizers, they seem to work perfectly and swapping one out got identical results. I also controlled for the epi illuminator in a couple ways.
by Scarodactyl
Sun Jun 28, 2020 2:26 pm
Forum: Beginner's corner
Topic: NEW BARLOW
Replies: 2
Views: 145

Re: NEW BARLOW

It screws on. Amscope does sell a cmo line where you'd have to remove a 1.0x plan pbjective to install a 0.5x, but you would know if you had one.