Search found 604 matches

by Scarodactyl
Tue Mar 31, 2020 9:02 pm
Forum: Microscopes and optics
Topic: Mitutoyo finescope fs100
Replies: 46
Views: 6835

Re: Mitutoyo finescope fs100

One notable feature of mitutoyo objectives is their gigantic field coverage. They project an image with a 200mm tube lens that covers a full frame sensor. Other objective makers just don't do this (after all, 26.5mm is the widest FoV 10x eyepiece you can get from Nikon or Olympus) and you'd likely h...
by Scarodactyl
Tue Mar 31, 2020 8:43 pm
Forum: Microscopes and optics
Topic: Olympus Short Barrel Plan Apo's on a Nikon L-ke
Replies: 2
Views: 17

Re: Olympus Short Barrel Plan Apo's on a Nikon L-ke

I am pretty sure Olympus WHK eyepieces are for the BH2 long objectives (they're the later higher-eyepoint variant on the WK). They are compensating but IIRC the compensations aren't the same as the earlier short barrel objectives (at least they require different photo eyepieces).
by Scarodactyl
Tue Mar 31, 2020 5:39 am
Forum: Pictures and Videos
Topic: Fossiliferous chalcedony
Replies: 6
Views: 113

Re: Fossiliferous chalcedony

It's downright fossilicious!
by Scarodactyl
Tue Mar 31, 2020 2:34 am
Forum: Microscopes and optics
Topic: Mitutoyo finescope fs100
Replies: 46
Views: 6835

Re: Mitutoyo finescope fs100

Typically I think there is a polarizer in the lamp house, and an analyzer at 90 degrees above the beamsplitter. This tends to eat stray reflections from what I understand. There may also be a rotatable quarter wave plate to control the effect depending on the design. I'm not an expert on this though.
by Scarodactyl
Mon Mar 30, 2020 11:48 pm
Forum: Microscopes and optics
Topic: Vickers M17 refurb' & modification
Replies: 22
Views: 177

Re: Vickers M17 refurb' & modification

This is an excellent project! I am especially impressed with the 3D printed parts--beautiful as well as functional. I've seen a 'photo kpl' eyepiece before, photographed on this page by Enrico Savazzi http://www.savazzi.net/photography/zeissadapter.html But he didn't know the maker or any other info...
by Scarodactyl
Mon Mar 30, 2020 11:18 pm
Forum: My microscope
Topic: My dream frankenscope, nearly complete!
Replies: 5
Views: 138

Re: My dream frankenscope, nearly complete!

Thanks everyone! Yeah, this one took a lot of research to figure out and a lot of eBay time to put together. I've found I enjoy assembling systems almost as much as using them, (which is fun but also a bit of a problem given how many systems I've ended up with in the process).
by Scarodactyl
Mon Mar 30, 2020 11:05 pm
Forum: Microscopes and optics
Topic: Mitutoyo finescope fs100
Replies: 46
Views: 6835

Re: Mitutoyo finescope fs100

Better objectives that are optimized for epi-illumination are usually thicker than ordinary objectives and their thread is different, meaning that a separate nosepiece turret is needed, or alternatively the same nosepiece turret but with removable adapters to accommodate both different threads. The...
by Scarodactyl
Mon Mar 30, 2020 9:13 pm
Forum: Microscopes and optics
Topic: Leica Stereozoom 6: dirty lens
Replies: 3
Views: 57

Re: Leica Stereozoom 6: dirty lens

Looking closer (now that I'm on my desktop) the SZ6 does alas look to have permanent mold damage. It happens, not much to be done about it. The compound head looks delaminated. Bausch and Lomb sold Olympus scopes (as the "Galen I") Kyowa scopes (as the "Galen II") and Chinese scopes (As the "Galen I...
by Scarodactyl
Mon Mar 30, 2020 6:44 pm
Forum: Microscopes and optics
Topic: Mitutoyo finescope fs100
Replies: 46
Views: 6835

Re: Mitutoyo finescope fs100

It is likely missing part of the anti-reflex system. Light entering the scope is polarized so you can control internal reflections with an analyzer. If part of that is missing you could have nasty issues with internal reflections causing flare. For most usage ourside of industrial examination the co...
by Scarodactyl
Mon Mar 30, 2020 2:53 pm
Forum: Beginner's corner
Topic: AMSCOPE 490 series
Replies: 4
Views: 47

Re: AMSCOPE 490 series

If it has a 4x objective you can look at anything with that, prep or no prep, since it doesn't require a cover slip. Reflected light (a flexible gooseneck led lamp is good for this but even a flashlight will do) can give you a whole mew range of subjects to look at.
by Scarodactyl
Mon Mar 30, 2020 2:38 pm
Forum: Microscopes and optics
Topic: Leica Stereozoom 6: dirty lens
Replies: 3
Views: 57

Re: Leica Stereozoom 6: dirty lens

Perhaps permanent mold damage? A bummer but if it still works it could be worse.
by Scarodactyl
Mon Mar 30, 2020 1:14 am
Forum: For forum members who want to buy and sell equipment
Topic: (solved) Wanted AO Cycloptic 56M, 58M, 59M
Replies: 3
Views: 79

Re: (solved) Wanted AO Cycloptic 56M, 58M, 59M

You're going to enjoy the cycloptic--it's the sort of scope you end up keeping around even if you upgrade later.
by Scarodactyl
Mon Mar 30, 2020 1:10 am
Forum: My microscope
Topic: My dream frankenscope, nearly complete!
Replies: 5
Views: 138

My dream frankenscope, nearly complete!

This is my dreamscope which I've been assembling for a while. Today I got my order of custom adapters from Rafcamera to attach an objective changer, bringing it a lot closer to completion! https://i.imgur.com/vrdeOPv.png https://i.imgur.com/VeqaGne.png This is a Wild M400 head with a Leica Z6 Apo le...
by Scarodactyl
Fri Mar 27, 2020 5:46 pm
Forum: Microscopes and optics
Topic: Seeking selection advice for stereo microscope
Replies: 22
Views: 292

Re: Seeking selection advice for stereo microscope

Oddly, the SMZ-2T seems to typically sell for more than the SMZ-10 on eBay, but I think the 10 is actually a more advanced system. The 2T does have a higher max mag but the zoom range is the same so you can achieve about the same zoom range with 15x eyepieces on the 10. You do lose some field of vi...
by Scarodactyl
Fri Mar 27, 2020 7:30 am
Forum: Microscopes and optics
Topic: Seeking selection advice for stereo microscope
Replies: 22
Views: 292

Re: Seeking selection advice for stereo microscope

Just as a couple examples, here's some potential deals currently going on eBay. There are plenty more, these are just a few I've seen (I've got a serious case of 'look, don't touch' on eBay right now). https://www.ebay.com/itm/ZEISS-SV8-Stemi-Stereo-Zoom-Microscope-With-10X-Widefield-Eyepieces-Lamp/...
by Scarodactyl
Thu Mar 26, 2020 9:28 pm
Forum: Microscopes and optics
Topic: Seeking selection advice for stereo microscope
Replies: 22
Views: 292

Re: Seeking selection advice for stereo microscope

Of course, the gadget has now been copied by other brands...the unfortunate way of lesser makers. Everyone developing technology is standing on the shoulders of giants, and Wild was no exception. Will you be documenting your work by taking movies or stills? If you are, I would not rule out an SMZ-2...
by Scarodactyl
Wed Mar 25, 2020 9:38 pm
Forum: Microscopes and optics
Topic: Strange apparatus on Leitz Orthoplan nosepiece?
Replies: 28
Views: 431

Re: Strange apparatus on Leitz Orthoplan nosepiece?

Use the indenter to smash them, one by one!
by Scarodactyl
Wed Mar 25, 2020 9:20 pm
Forum: Microscopes and optics
Topic: Seeking selection advice for stereo microscope
Replies: 22
Views: 292

Re: Seeking selection advice for stereo microscope

There are a lot of great options. Do you have a good idea of how much working distance you need, and what field of view you want to cover? Getting a 5mm field of view doesn't require anything too extreme (about 4x~ mag on a stereo with 10x oculars, depending on the field number) but I'd assume you'd...
by Scarodactyl
Wed Mar 25, 2020 8:43 pm
Forum: Microscopes and optics
Topic: Strange apparatus on Leitz Orthoplan nosepiece?
Replies: 28
Views: 431

Re: Strange apparatus on Leitz Orthoplan nosepiece?

Awesome! Not to state the obvious too much, but this could be a great rig for reflected light work. Even if they're meant for coaxial illumination, 1mm of working distance is enough to use a fiber optic gooseneck to pump some light onto a more three-diemnsional subject, and it's a whole different wo...
by Scarodactyl
Wed Mar 25, 2020 6:15 pm
Forum: Microscopes and optics
Topic: Strange apparatus on Leitz Orthoplan nosepiece?
Replies: 28
Views: 431

Re: Strange apparatus on Leitz Orthoplan nosepiece?

I assume from seeing a 160x and infinity objectives on an orthoplan that this was an industrial/metallurgical setup? Are those non-coverglass objectives?
by Scarodactyl
Mon Mar 23, 2020 5:58 pm
Forum: For forum members who want to buy and sell equipment
Topic: Compound microscope recommendations?
Replies: 16
Views: 1770

Re: Compound microscope recommendations?

It doesn't. They are doing a subtle form of spam where links are inserted to inane posts for SEO purposes. It might be malware on their computer but they just registered and have made 4 posts, three of which are vaguely relevant but contentless stuff.
by Scarodactyl
Sun Mar 22, 2020 6:14 pm
Forum: Microscopy accessories
Topic: Question about No Cover Glass Objectives
Replies: 2
Views: 106

Re: Question about No Cover Glass Objectives

Most non-coverglass objectives are used for metallurgical/general industrial examination of surface textures, not for biological work. They are nice for doing reflected light photography of more three-dimensional subjects if they have sufficient working distance (many do not as they're meant for coa...
by Scarodactyl
Sun Mar 22, 2020 6:10 am
Forum: Beginner's corner
Topic: Camera taking bad bright field images
Replies: 22
Views: 404

Re: Camera taking bad bright field images

Maybe flare from inside the adapter? This wouls not be such an issue in darkfield but would kill contrast in brightfield. If it's the same generic Chinese 2x adapter most sellera have it gets pretty variable results from system to system. The amazon listing looks a bit dofferent though. What micros...
by Scarodactyl
Sun Mar 22, 2020 5:56 am
Forum: Camera systems and imaging
Topic: Olympus BHS vs modern microscope
Replies: 8
Views: 344

Re: Olympus BHS vs modern microscope

Most comparisons, very much such as the one you linked to, are specious, and are generally poorly done. It is most always an apples-to-oranges comparison: the N.A.s are not the same; the focus is on different points of the specimen for the different lenses; the magnifications are not the same; the ...
by Scarodactyl
Sun Mar 22, 2020 4:50 am
Forum: Beginner's corner
Topic: Camera taking bad bright field images
Replies: 22
Views: 404

Re: Camera taking bad bright field images

Maybe flare from inside the adapter? This wouls not be such an issue in darkfield but would kill contrast in brightfield. If it's the same generic Chinese 2x adapter most sellera have it gets pretty variable results from system to system. The amazon listing looks a bit dofferent though. What microsc...
by Scarodactyl
Fri Mar 20, 2020 8:22 pm
Forum: Camera systems and imaging
Topic: Hardware to use Nikon Z50 on Amscope T490B
Replies: 3
Views: 153

Re: Hardware to use Nikon Z50 on Amscope T490B

The Z50 is a mirrorless system, so the flange focal distance is lower (put more simply there is less distance between the opening of the camera and the sensor). As such it's possible that you could just mount the camera on the trinoc port with no intervening optics. That would be a significant savin...
by Scarodactyl
Tue Mar 17, 2020 9:59 pm
Forum: Microscopes and optics
Topic: Inverted Stereomicroscope
Replies: 9
Views: 719

Re: Inverted Stereomicroscope

From what i have heard they're the retail arm of a wholesaler which provides scopes to a lot of different businesses. They do seem to have made good selections, and I enjoy looking through their offerings. It is possible that a local seller could do better for you since they're getting wholesale pri...
by Scarodactyl
Tue Mar 17, 2020 8:03 pm
Forum: Microscopes and optics
Topic: Inverted Stereomicroscope
Replies: 9
Views: 719

Re: Inverted Stereomicroscope

The closest I can think of are 90 degree stereos. I suppose you could put one sideways, though a mirror arrangement would be better.
by Scarodactyl
Fri Mar 13, 2020 9:39 pm
Forum: Microscopes and optics
Topic: Zeiss Experts: What Model is This?
Replies: 26
Views: 3017

Re: Zeiss Experts: What Model is This?

I found it difficult to find information on it (though I was a lot less savvy at the time). I ended up selling it because I couldn't even figure out which head might go on it. So hopefully one of the actual zeiss experts here can enlighten us, because I've been wondering the same thing for some time...
by Scarodactyl
Fri Mar 13, 2020 9:13 pm
Forum: Microscopes and optics
Topic: Zeiss Experts: What Model is This?
Replies: 26
Views: 3017

Re: Zeiss Experts: What Model is This?

I had a base (missing the head) like this one, probably the same model? The base was just labeled "montagesatz T-UL" or something like that. It's a finite scope anyway with 160 objectives.