Search found 1303 matches

by Scarodactyl
Thu May 13, 2021 7:26 am
Forum: Beginner's corner
Topic: Advice on buying Stereo Microscope
Replies: 53
Views: 3824

Re: Advice on buying Stereo Microscope

That's a 0.3x auxiliary lens. It is rare and should be pretty sought after since it gives even greater working distance than the already-sought 0.5x.
by Scarodactyl
Thu May 13, 2021 2:26 am
Forum: Microscopes and optics
Topic: Difference between reduction lenses
Replies: 4
Views: 84

Re: Difference between reduction lenses

Optem is a good nake, thougb I would guess that diagnostic instruments (now spot imaging) wouls be even better. Never done a head to head, though, and .5xes or .45xes are usually expensive.
by Scarodactyl
Wed May 12, 2021 5:58 pm
Forum: Camera systems and imaging
Topic: Olympus Photomicro Adapter L Cheaper Substitute
Replies: 9
Views: 1734

Re: Olympus Photomicro Adapter L Cheaper Substitute

That's interesting--I couldn't get a parfocal image by handholding my camera above mine, but they likely offered different adapters to attach to the top there. Definitely worth checking before messing with other adapters.
by Scarodactyl
Tue May 11, 2021 10:53 pm
Forum: Camera systems and imaging
Topic: Olympus Photomicro Adapter L Cheaper Substitute
Replies: 9
Views: 1734

Re: Olympus Photomicro Adapter L Cheaper Substitute

A DSLR can give you better results than one of these amscope cameras most of the time (and there isn't really a good way to hook up a small-sensor microscope camera to a BH2 series microscope anyway). A Canon T6 is not super expensive used (around 200ish bucks, they were going down pre-pandemic but ...
by Scarodactyl
Sun May 09, 2021 6:33 pm
Forum: Illumination Techniques
Topic: Epi DIC question
Replies: 5
Views: 201

Re: Epi DIC question

When I cpean samples with alcohol the surface of the alcohol does give good reflections while it lasts.
by Scarodactyl
Sat May 08, 2021 4:53 am
Forum: Beginner's corner
Topic: Bausch & Lomb SZ4 Mirror Cleaning ?? Recoating ??
Replies: 3
Views: 89

Re: Bausch & Lomb SZ4 Mirror Cleaning ?? Recoating ??

I have done it with ipa and fresh q tips (wt, wipe gently once, dry with another fresh one gently, discard bitha nd repeat if necessary). Generally you probably don't need to worry about them getting dirty if you treat them well, it's more about the last owner who might have used it industrially or ...
by Scarodactyl
Sat May 08, 2021 12:15 am
Forum: Illumination Techniques
Topic: Epi DIC question
Replies: 5
Views: 201

Re: Epi DIC question

It works fine on anything with a relatively flat, brightly reflective surface. So a completely transparent crystal with a naturally polished surface is no problem. I haven't tried any leaves, and I would suspect they might tend to be too curved to get a good reflection off of.
by Scarodactyl
Thu May 06, 2021 5:27 am
Forum: Microscopes and optics
Topic: AO Stereo Star Zoom 580 Help Needed
Replies: 13
Views: 359

Re: AO Stereo Star Zoom 580 Help Needed

I think the 580 only goes up to a higher max zoom because they needed some empty space to accept the illuminator and/or trinocular port (hence it being so much taller than the 570) so they project the image a little higher and a little bigger. The zoom ratio is the same and I think the max NA is the...
by Scarodactyl
Tue May 04, 2021 11:38 pm
Forum: My microscope
Topic: My Zeiss
Replies: 12
Views: 1177

Re: My Zeiss

Typically wafer inspection microscopes tend to use the same basic architecture as other measuring microscopes, hardness testers, toolmaker's scopes etc. So that would not be surprising. Which objectives came on it (or what thread they were) would be a strong hint too.
by Scarodactyl
Sun May 02, 2021 8:34 am
Forum: Microscopes and optics
Topic: N.A. Re-visit
Replies: 11
Views: 363

Re: N.A. Re-visit

Putting aside the difference between the size and nature of the retina vs a camera sensor, your eye has a wide angle ~23mm lens in front of it which significantly reduces the final magnification of the image. So comparing the magnification there can be tricky.
by Scarodactyl
Sun May 02, 2021 8:28 am
Forum: Microscopes and optics
Topic: AO Stereo Star Zoom 580 Help Needed
Replies: 13
Views: 359

Re: AO Stereo Star Zoom 580 Help Needed

That's weird. Aside from the brightness is it working, with the two images aligned with one another?
by Scarodactyl
Sat May 01, 2021 3:45 pm
Forum: Beginner's corner
Topic: Need help finding adapter for a Canon eos 2000d attached to a HV photo tube (180570)?
Replies: 7
Views: 304

Re: Need help finding adapter for a Canon eos 2000d attached to a HV photo tube (180570)?

It's a pretty long thread and tbh I don't remember all the details exactly, bit I wouldn't worry about any of the issues he faces in there. The 40mm pancake acts like a reduction lens after the the 10x eyepiece, and together they produce a well sized image for your camera. Edit: oh yeah, that thread...
by Scarodactyl
Fri Apr 30, 2021 9:56 pm
Forum: Microscopes and optics
Topic: Optical Quality of inexpensive objectives
Replies: 18
Views: 1065

Re: Optical Quality of inexpensive objectives

At least at one point, and maybe still, Meiji was listing the Chinese microscopes they were selling as "Made in Holland", presumably because they had partnered with Euromex to get them. I am quite certain no notable aprt of those scopes was made anywhere in Europe. From what I can tell they do seem ...
by Scarodactyl
Fri Apr 30, 2021 4:02 pm
Forum: Beginner's corner
Topic: Need help finding adapter for a Canon eos 2000d attached to a HV photo tube (180570)?
Replies: 7
Views: 304

Re: Need help finding adapter for a Canon eos 2000d attached to a HV photo tube (180570)?

Yup, that should do it--attach the lens and focus to infinity. The original lens used in its placd was a simple 60mm doublet which gives OK results but not quite as good in my experiments and it also enlarges the image far too much for asp-c. You can get that lens used for half the price or less.
by Scarodactyl
Thu Apr 29, 2021 8:12 pm
Forum: Beginner's corner
Topic: Need help finding adapter for a Canon eos 2000d attached to a HV photo tube (180570)?
Replies: 7
Views: 304

Re: Need help finding adapter for a Canon eos 2000d attached to a HV photo tube (180570)?

You're in luck. All you need is a 40mm canon pancake lens to go over the photo eyepiece and a 40mm clamp adapter to the filter threads. I'll link the one I use when I get home. edit: This clamps on the outside of the 445546, which has a 40mm OD, and threads directly into the filter threads of a 40mm...
by Scarodactyl
Wed Apr 28, 2021 7:43 pm
Forum: Collecting microscopes and slides
Topic: Repurposing various optics and accessories
Replies: 2
Views: 256

Re: Repurposing various optics and accessories

The zeiss intermediate accessories might fit on your stand--I haven't heard of anyone doing that but they have a ~42mm dovetail iirc? The Leitz photo eyepiece there is a very handy accessory for Leitz scopes and might be sufficiently compatible with your Olympus objectives since Leitz sort of sits i...
by Scarodactyl
Tue Apr 27, 2021 6:36 am
Forum: Beginner's corner
Topic: Help needed. Anyone with experience with these type of 4k digital microscope?
Replies: 1
Views: 116

Re: Help needed. Anyone with experience with these type of 4k digital microscope?

This is an industrial zoom macro lens/macroscope, basically copied from Navitar's zoom 6000 line or similar ones from Optem, kyowa, etc (don't know the exact history). They're kind of like a single light path from a stereo microscope, not very high resolution but super easy to use with the zoom and ...
by Scarodactyl
Sun Apr 25, 2021 3:44 am
Forum: Illumination Techniques
Topic: Epi DIC woes
Replies: 67
Views: 13841

Re: Epi DIC woes

Well, my DIC woes are finally (w)over! The second Nikon DIC setup I mentioned in the last post came with seriously gummed up prism sliding mechanisms. I don't know how they came up with the design for the sliders--it looks like they copied the general form of the Olympus BH2 prisms with their lever ...
by Scarodactyl
Wed Apr 21, 2021 2:14 pm
Forum: My microscope
Topic: Parfocal shims
Replies: 9
Views: 597

Re: Parfocal shims

At one point I needed some and found some brass shims with the appropriate inner diameter on some hardware outlet or other, maybe McMaster. It is worth checking.
by Scarodactyl
Fri Apr 16, 2021 1:26 am
Forum: Beginner's corner
Topic: Advice on buying Stereo Microscope
Replies: 53
Views: 3824

Re: Advice on buying Stereo Microscope

The m1 is an ultrabasic student scope. No way to change the magnification aside from changing thr main objective. I would not bother with one, if you want a long working distance microscope a nikon smz-1 or smz-2b will cost similarly and have better functionality, or you can spend a bit more ans get...
by Scarodactyl
Tue Apr 13, 2021 3:10 pm
Forum: My microscope
Topic: Help with model of Southern Precision Instrument Microscope
Replies: 2
Views: 191

Re: Help with model of Southern Precision Instrument Microscope

SPI is (was?) a whitebox importer, no collectible value. It looks to be missing one eyepiece and some camera hardware (which is fine because you'd need to replace it anyway). It is probably a solid starter scope if it powers on and thr insides aren't moldy or hazy.
by Scarodactyl
Mon Apr 12, 2021 11:08 pm
Forum: My microscope
Topic: Buying 3rd Party Eyepieces for stereo scope
Replies: 4
Views: 193

Re: Buying 3rd Party Eyepieces for stereo scope

Most stereos have at most minor correctiona done in the eyepieces, so that part of compatibility is less important. You'd want to be sure your scope takes standard 30mm stereo eyepieces--any recent mid to high end one will (unless you get one following Meiji's in hoise 30.5mm standard) but these low...
by Scarodactyl
Mon Apr 12, 2021 7:50 pm
Forum: Microscopes and optics
Topic: PZO DIC on a BHT microscope, possible?
Replies: 50
Views: 2068

Re: PZO DIC on a BHT microscope, possible?

In adapting a Nikon labiphit head to a BH2 Olympus body the Nikon head actually needed to sit higher than the bottom of the olympus dovetail to keep the focus position in the eyepieces about the same, so the extra space of a mechanical adapter was actually helpful.
by Scarodactyl
Thu Apr 08, 2021 2:10 am
Forum: My microscope
Topic: Taking pictures with a stereo scope
Replies: 2
Views: 448

Re: Taking pictures with a stereo scope

If you want to focus stack just be aware the image will move horizontally as you focus in, that's just as it should be. These basic ones with one or two fixed mags are cheap and basic, but you may be surprised by what a good image it produces. I tried a similar one a while back at a sales office and...
by Scarodactyl
Wed Apr 07, 2021 11:45 pm
Forum: Beginner's corner
Topic: what is a 1x objective ?
Replies: 5
Views: 577

Re: what is a 1x objective ?

Remember that '1x' is just relative to the field number, and in a microscope the image will always be further magnified (either by the eyepieces or from the small camera sensor to a large monitor.) A few sellers might label a flat shield as a '1x' auxiliary objective (since it does not change the ma...
by Scarodactyl
Wed Apr 07, 2021 11:38 pm
Forum: Beginner's corner
Topic: Using a pair of cameras with a stereo microscope
Replies: 37
Views: 1937

Re: Using a pair of cameras with a stereo microscope

[…] That would probably be the most convenient method for video, though not the cheapest. Thanks ... but even with that generous discount, way out of my price range for this. MichaelG. Haha yeah, I would never recommend buying it at that price, just showing off the existence. You could stack two of...
by Scarodactyl
Wed Apr 07, 2021 3:46 pm
Forum: Beginner's corner
Topic: Using a pair of cameras with a stereo microscope
Replies: 37
Views: 1937

Re: Using a pair of cameras with a stereo microscope

If dual viewing for video is the goal there are double photo attachments available for some stereo microscopes, including the Nikon SMZ line and the Wild/Leica m series (the latter being surgical beamsplitters). That would probably be the most convenient method for video, though not the cheapest.
by Scarodactyl
Mon Apr 05, 2021 9:36 pm
Forum: Beginner's corner
Topic: Using a pair of cameras with a stereo microscope
Replies: 37
Views: 1937

Re: Using a pair of cameras with a stereo microscope

I have mixed feelings about the synthetic stereos. Sometimes they're great but thry really son't give the same effect as looking through a real stereo microscope does. The smz-10 is nice for this reason, but aside from it coming up as an idea I have never seen anyone actually do much of it--the feat...
by Scarodactyl
Mon Apr 05, 2021 6:29 am
Forum: Beginner's corner
Topic: Using a pair of cameras with a stereo microscope
Replies: 37
Views: 1937

Re: Using a pair of cameras with a stereo microscope

Yeah, the smz-10 is the practical way to do this (I think there was an old Olympus SZ series which had a similar feature but I don't know which one). It isn't the best way to take kacro photos but it isn't the worst either--the famed (in the gem field) Photoatlas of Gem Inclusions series was photogr...
by Scarodactyl
Sun Apr 04, 2021 5:10 pm
Forum: My microscope
Topic: Latest aquisition BH2 BHT with removeable objective turret
Replies: 3
Views: 279

Re: Latest aquisition BH2 BHT with removeable objective turret

Interchangeable nosepieces are definitely nice, and Olympu's implementation is imo nicer than the contemporary Nikon dovetail ones.