Search found 2794 matches

by Scarodactyl
Tue Aug 10, 2021 6:11 am
Forum: Microscopes and optics
Topic: Stereoscope comparison (AmScope vs Vision Scientific)
Replies: 19
Views: 6107

Re: Stereoscope comparison (AmScope vs Vision Scientific)

Looks like the same models ordered from the same suppliers.
by Scarodactyl
Mon Aug 09, 2021 8:58 pm
Forum: Beginner's corner
Topic: trying to change magnification on an old American Optical Forty
Replies: 5
Views: 2407

Re: trying to change magnification on an old American Optical Forty

The eyepieces maybe, sometimes these didn't use conventional eyepirces but you might find 15x eyepieces for an AO stereostar fit and work fine (the size would be 23.2mm though, not 24). That will only enlarge the existing image but not resolve more detail. The objectives will not be to any particula...
by Scarodactyl
Mon Aug 09, 2021 5:37 pm
Forum: Beginner's corner
Topic: trying to change magnification on an old American Optical Forty
Replies: 5
Views: 2407

Re: trying to change magnification on an old American Optical Forty

Thr AO forty is a student scope, badically a vety simpligied version of their main stereo line. I am not sure if there's much customization possible on them.
by Scarodactyl
Mon Aug 09, 2021 6:33 am
Forum: Microscopes and optics
Topic: Mystery Wild photo tube
Replies: 14
Views: 4442

Re: Mystery Wild photo tube

This is definitely a microscope part.
by Scarodactyl
Sun Aug 08, 2021 10:07 pm
Forum: Microscopes and optics
Topic: Mystery Wild photo tube
Replies: 14
Views: 4442

Re: Mystery Wild photo tube

It must be similar in broad strokes, but the queation is wht optics it was made for. Thr lmscope adapter is basically a teleconverter, it has some enlarging optics built in to grab the image and put it on your dslr's sensor. All I can think is that Wild must have had a projection style photo eyepiec...
by Scarodactyl
Sun Aug 08, 2021 8:26 pm
Forum: Microscopes and optics
Topic: Mystery Wild photo tube
Replies: 14
Views: 4442

Re: Mystery Wild photo tube

This would be from the 80s, some people from the 80s are still alive. Your standard Wild photo port would be 38mm in ID, thrn insert an adapter which takes a 23mm or 30mm eyepiece (or later, a specialized photoeyepiece for stereos) and has a 40mm OD for parts like this to clamp onto. Usually it woul...
by Scarodactyl
Sun Aug 08, 2021 7:14 pm
Forum: Microscopes and optics
Topic: Mystery Wild photo tube
Replies: 14
Views: 4442

Re: Mystery Wild photo tube

They'd fit on a standard photo mount with an eyepiece slot and 40mm od, but they don't seem to have a mount for a lens. I don't think Wild ever made projective eyepieces, but maybe they did at some point?
by Scarodactyl
Sun Aug 08, 2021 6:47 pm
Forum: Microscopes and optics
Topic: Mystery Wild photo tube
Replies: 14
Views: 4442

Re: Mystery Wild photo tube

Yeah, no dice there, the m400 has its own special set of adapters and the m420 takes normal 38mm adapters up top.
by Scarodactyl
Sun Aug 08, 2021 4:53 pm
Forum: Microscopes and optics
Topic: Mystery Wild photo tube
Replies: 14
Views: 4442

Re: Mystery Wild photo tube

Huh, that's odd. It must be some specialized variation on the photo tube, but camera accessory needs that kind of length?
by Scarodactyl
Sun Aug 08, 2021 3:45 am
Forum: Microscopes and optics
Topic: Questions about metallurgy on Olympus
Replies: 44
Views: 12549

Re: Questions about metallurgy on Olympus

Or not, I ended up selling it and forgot to get additional shots before packing it up. But I can still run you through it all. Here's an overview of what it looks like fully set up: https://i.imgur.com/GGNgf7T.png Let's start with the BH2-UMA illuminator. At the far end you have the lamp house which...
by Scarodactyl
Sat Aug 07, 2021 8:47 pm
Forum: Microscopes and optics
Topic: Nikon SMZ vs Chinese Copy in a battle of the titans
Replies: 9
Views: 4597

Re: Nikon SMZ vs Chinese Copy in a battle of the titans

In this thread I mentioned not being able to use the third party camera mount as-is and needing to modify it because of flare. I wanted to note I have been unable to replicate this and the unmodified one I have seems to work just as well as the modified one. I am not sure where the flare was coming ...
by Scarodactyl
Sat Aug 07, 2021 8:28 pm
Forum: Beginner's corner
Topic: Very dirty Nikon microscope, what to do?
Replies: 47
Views: 17724

Re: Very dirty Nikon microscope, what to do?

My gripe is mostly with bolts in the later SMZ stereos. They're standard metric bolts so even hardware store replacements work fine.
by Scarodactyl
Sat Aug 07, 2021 2:59 pm
Forum: Beginner's corner
Topic: Very dirty Nikon microscope, what to do?
Replies: 47
Views: 17724

Re: Very dirty Nikon microscope, what to do?

With newer nikon screws they have a good chance of stripping even with the right driver. They have found the softest, butteryest metal possible for them.
by Scarodactyl
Sat Aug 07, 2021 1:12 pm
Forum: Microscopes and optics
Topic: Spec for Objectives: Terminology
Replies: 16
Views: 5232

Re: Spec for Objectives: Terminology

DoF is depth of field, which is what you want (directly related to numerical aperture). Depth of focus happens after the objective and is basically how thick the plane is where the image is in focus. Higher NA optics have a narrower depth of field, but a woder depth of focus, which is why high mag o...
by Scarodactyl
Fri Aug 06, 2021 9:01 pm
Forum: Microscopes and optics
Topic: Nikon ED Plan?
Replies: 5
Views: 2209

Re: Nikon ED Plan?

The ED tag is more often seen on their stereo objectives nowadays.
by Scarodactyl
Fri Aug 06, 2021 7:32 pm
Forum: Illumination Techniques
Topic: DIC Question
Replies: 257
Views: 3114588

Re: DIC Question

Oh yeah, mixed up my terms there. Typically these are set up with one prism being objective specific and the other being more general (or with epi dic either one per objective or one slider for all). With the olympus system the slider goes above the objectives and is the nonspecific one, while the c...
by Scarodactyl
Fri Aug 06, 2021 6:44 pm
Forum: Illumination Techniques
Topic: DIC Question
Replies: 257
Views: 3114588

Re: DIC Question

Yeah, it looks to me like the nikon nosepiece prisms are 1k or 1.6k usd depending on n1 or n2, and the condenser prisms are 1k and up, while the olympus ones on eBay are 1.2k for the slider and 250ish for the objective prisms. Not a huge savings for sure unless you want to make a full dic setup with...
by Scarodactyl
Fri Aug 06, 2021 6:17 pm
Forum: Microscopy accessories
Topic: Leica/Wild M420/M400 on a Nikon toolmaker(?)
Replies: 6
Views: 3734

Re: Leica/Wild M420/M400 on a Nikon toolmaker(?)

My setup is similar, though I don't have the focusable stage. Seems like a neat idea. I doubt you'll find someone who did this specific combination. If you can machine aluminum yourself it should be pretty easy to try it out, and aside from getting loctited bolts removed nothing permanent has to be ...
by Scarodactyl
Fri Aug 06, 2021 6:09 pm
Forum: Illumination Techniques
Topic: DIC Question
Replies: 257
Views: 3114588

Re: DIC Question

Looking again the slider is a normal doc slider, and a couple of the objective prisms aren't marked for water immersion. But of course that all requires more research.
by Scarodactyl
Fri Aug 06, 2021 4:23 pm
Forum: Microscopy accessories
Topic: Leica/Wild M420/M400 on a Nikon toolmaker(?)
Replies: 6
Views: 3734

Re: Leica/Wild M420/M400 on a Nikon toolmaker(?)

That's odd--any idea what component on the Wild stand may be out of wack? I could share my measurements of the dovetail that I used to design my own adapter, or even make a variation on the model if you can take measurements of the spacing between the bolt holes. I had it made via xometry but it was...
by Scarodactyl
Fri Aug 06, 2021 3:29 pm
Forum: Illumination Techniques
Topic: DIC Question
Replies: 257
Views: 3114588

Re: DIC Question

Some olynpus prisms just went up on UK eBay, including condenser prisms and a nosepiece slider, not cheap but cheaper than thorlabs. The condenser prisms are mostly for specialized water immersion objectives though.
by Scarodactyl
Fri Aug 06, 2021 7:04 am
Forum: Microscopy accessories
Topic: Leica/Wild M420/M400 on a Nikon toolmaker(?)
Replies: 6
Views: 3734

Re: Leica/Wild M420/M400 on a Nikon toolmaker(?)

From a mechanical standpoint it is not hard. You'd want to remove the existing focus mount from the m420 by removing the three bolts that hold it on (which may be loctited in so proceed cautiously), remove the head/nosepiece mount from the measurescope by loosening two bolts and sliding it off the d...
by Scarodactyl
Fri Aug 06, 2021 1:01 am
Forum: My microscope
Topic: High end Chinese microscope with DIC and Phase
Replies: 51
Views: 24141

Re: High end Chinese microscope with DIC and Phase

The motic is definitely epi dic. Kind of funny they're pushing it on that series instead of their (quite good) mitutoyo clone series. Maybe it's unusual for customers to want both long working distances and epi dic. Not to state the obvious but an epi DIC setup is a lot easier to get or assemble use...
by Scarodactyl
Thu Aug 05, 2021 3:39 pm
Forum: Introduce yourself
Topic: Possibly the most affordable midlife crisis I could have :)
Replies: 29
Views: 11417

Re: Possibly the most affordable midlife crisis I could have :)

Nice pair. The Leica Galen was made in China and probably patterened off the ch2 so it might be fun to see if there is some parts compatibility.
by Scarodactyl
Thu Aug 05, 2021 1:12 am
Forum: Microscopes and optics
Topic: Bausch & Lomb 4mm 1.00 water immersion objective
Replies: 11
Views: 6418

Re: Bausch & Lomb 4mm 1.00 water immersion objective

That's the one. Newer design but same mag and na.
by Scarodactyl
Wed Aug 04, 2021 7:38 pm
Forum: Microscopes and optics
Topic: Bausch & Lomb 4mm 1.00 water immersion objective
Replies: 11
Views: 6418

Re: Bausch & Lomb 4mm 1.00 water immersion objective

I have a modern 40x/1.0 water immersion objective and it is great. Water immersion is awfully nice overall.
by Scarodactyl
Wed Aug 04, 2021 6:30 pm
Forum: Illumination Techniques
Topic: DIC Question
Replies: 257
Views: 3114588

Re: DIC Question

Used on eBay would probably be cheapest if you can find the right pair.
by Scarodactyl
Wed Aug 04, 2021 3:33 pm
Forum: Illumination Techniques
Topic: Optics and Polarization Light Source Question
Replies: 2
Views: 2150

Re: Optics and Polarization Light Source Question

I dpubt it would be a big problem, but the polarizer always seema to go right before the half mirror in these designs, after all the lenses.
by Scarodactyl
Wed Aug 04, 2021 7:19 am
Forum: My microscope
Topic: High end Chinese microscope with DIC and Phase
Replies: 51
Views: 24141

Re: High end Chinese microscope with DIC and Phase

It's an option on their metallurgical microscopes, as well as metallurgical microacopes from a number of other Chinese outlets. It seems to be more common or at least more openly advertised on places like alibaba. Just checked again and the bestscope one appears to have a slider which looks similar ...
by Scarodactyl
Wed Aug 04, 2021 5:35 am
Forum: Microscopy accessories
Topic: LED substage lighting for stereo scope
Replies: 8
Views: 5360

Re: LED substage lighting for stereo scope

That's very neat. I've been planning out a travel scope setup for myself and this looks like it could be a nice addition.