Search found 2775 matches
- Sat Aug 14, 2021 4:59 am
- Forum: Microscopes and optics
- Topic: Advice on vintage scopes
- Replies: 12
- Views: 4247
Re: Advice on vintage scopes
This one has a tilting base, so that can help with the neck anyway.
- Fri Aug 13, 2021 4:17 pm
- Forum: Microscopy accessories
- Topic: 23mm diameter 10x/22 eyepieces (!)
- Replies: 44
- Views: 20940
Re: 23mm diameter 10x/22 eyepieces (!)
Yeah, Olympus bh2 era objectives are on the low end of correcting (at least for chroma) but it's still needed. I have seen setups with the b&l 15x ultra wf eyepieces on olympus stands--not sure how well the compensations match but it may be a better option for imax-like viewing.
- Fri Aug 13, 2021 3:19 am
- Forum: Introduce yourself
- Topic: Possibly the most affordable midlife crisis I could have :)
- Replies: 29
- Views: 11146
Re: Possibly the most affordable midlife crisis I could have :)
It's only a little busted. Sounds like it takes a standard 42mm head. The hard bit is removing the bent set screw if it won't come willingly, but worst case you remove it unkindly and retap the hole to accept a wider thumb screw.
- Fri Aug 13, 2021 1:09 am
- Forum: My microscope
- Topic: After a false start, my first scope! Olympus CH-2
- Replies: 10
- Views: 5738
Re: After a false start, my first scope! Olympus CH-2
Unlike objectives, eyepieces can typically be carefully disassembled, cleaned and put back together. You might also be able to remove the reticle in the olympus eyepiece.
- Wed Aug 11, 2021 11:11 pm
- Forum: Introduce yourself
- Topic: Possibly the most affordable midlife crisis I could have :)
- Replies: 29
- Views: 11146
Re: Possibly the most affordable midlife crisis I could have :)
Yeah, there are lots of things you can do with a spare frame.
- Wed Aug 11, 2021 7:32 pm
- Forum: Camera systems and imaging
- Topic: Afocal setup with small USB sensor?
- Replies: 28
- Views: 9246
Re: Afocal setup with small USB sensor?
the other type, like this Leitz 0.1x, is a different thing: it needs to be mounted after the photo eyepiece the photo eyepiece was designed for, like, 35mm film format, and this 0.1x extra adapter focuses the image nearer and smaller, to fit into a small CCD chip it works as "close up lens" for the...
- Wed Aug 11, 2021 6:21 pm
- Forum: Camera systems and imaging
- Topic: Afocal setup with small USB sensor?
- Replies: 28
- Views: 9246
Re: Afocal setup with small USB sensor?
Looks like it works pretty well.
I have a Leitz '0.1x' c mount adapter that must go over an eyepiece for afocal. I haven't tried it but it makes sense that some of the big dogs would have tried this approach
I have a Leitz '0.1x' c mount adapter that must go over an eyepiece for afocal. I haven't tried it but it makes sense that some of the big dogs would have tried this approach
- Wed Aug 11, 2021 1:41 am
- Forum: Beginner's corner
- Topic: Bausch & Lomb SZ4 to SZ7 differences?
- Replies: 21
- Views: 7989
Re: Bausch & Lomb SZ4 to SZ7 differences?
This model was made for a long time across two changes of management and one change of venue, so some variation in the design over the years is possible. Leica did make a couple minor changes, including a nicer zoom knob and a different material for the dust guards whuch doesn't decay like the origi...
- Tue Aug 10, 2021 11:03 pm
- Forum: Microscopes and optics
- Topic: Cheap stereo microscope?
- Replies: 24
- Views: 7754
Re: Cheap stereo microscope?
They have 4 others listed under the 'stereo' category, each of which has exact equivalents from amscope or any other given supplier of chinese stereos.
- Tue Aug 10, 2021 8:43 pm
- Forum: Microscopes and optics
- Topic: Stereoscope comparison (AmScope vs Vision Scientific)
- Replies: 19
- Views: 5913
Re: Stereoscope comparison (AmScope vs Vision Scientific)
Just for the sake of the completeness of this thread, the parfocal ZM line stereo zoom head is ZMDG6745T, which is sold separately. All other heads in the ZM line AmScope stereoscopes are not parfocal, as of last week. This is definitely incorrect, though it would not be surprising at all for an am...
- Tue Aug 10, 2021 4:44 pm
- Forum: Beginner's corner
- Topic: trying to change magnification on an old American Optical Forty
- Replies: 5
- Views: 2347
Re: trying to change magnification on an old American Optical Forty
Ohh yeah, reducing mag isn't going to work that way.
I hate to say it but you prpbably need a stereo that's a little more advanced and can accept auxiliary lenses. These student scopes can be a great deal but aren't exactly versatile.
I hate to say it but you prpbably need a stereo that's a little more advanced and can accept auxiliary lenses. These student scopes can be a great deal but aren't exactly versatile.
- Tue Aug 10, 2021 6:11 am
- Forum: Microscopes and optics
- Topic: Stereoscope comparison (AmScope vs Vision Scientific)
- Replies: 19
- Views: 5913
Re: Stereoscope comparison (AmScope vs Vision Scientific)
Looks like the same models ordered from the same suppliers.
- 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: 2347
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...
- 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: 2347
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.
- Mon Aug 09, 2021 6:33 am
- Forum: Microscopes and optics
- Topic: Mystery Wild photo tube
- Replies: 14
- Views: 4370
Re: Mystery Wild photo tube
This is definitely a microscope part.
- Sun Aug 08, 2021 10:07 pm
- Forum: Microscopes and optics
- Topic: Mystery Wild photo tube
- Replies: 14
- Views: 4370
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...
- Sun Aug 08, 2021 8:26 pm
- Forum: Microscopes and optics
- Topic: Mystery Wild photo tube
- Replies: 14
- Views: 4370
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...
- Sun Aug 08, 2021 7:14 pm
- Forum: Microscopes and optics
- Topic: Mystery Wild photo tube
- Replies: 14
- Views: 4370
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?
- Sun Aug 08, 2021 6:47 pm
- Forum: Microscopes and optics
- Topic: Mystery Wild photo tube
- Replies: 14
- Views: 4370
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.
- Sun Aug 08, 2021 4:53 pm
- Forum: Microscopes and optics
- Topic: Mystery Wild photo tube
- Replies: 14
- Views: 4370
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?
- Sun Aug 08, 2021 3:45 am
- Forum: Microscopes and optics
- Topic: Questions about metallurgy on Olympus
- Replies: 44
- Views: 12284
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...
- 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: 4480
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 ...
- Sat Aug 07, 2021 8:28 pm
- Forum: Beginner's corner
- Topic: Very dirty Nikon microscope, what to do?
- Replies: 47
- Views: 17223
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.
- Sat Aug 07, 2021 2:59 pm
- Forum: Beginner's corner
- Topic: Very dirty Nikon microscope, what to do?
- Replies: 47
- Views: 17223
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.
- Sat Aug 07, 2021 1:12 pm
- Forum: Microscopes and optics
- Topic: Spec for Objectives: Terminology
- Replies: 16
- Views: 5091
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...
- Fri Aug 06, 2021 9:01 pm
- Forum: Microscopes and optics
- Topic: Nikon ED Plan?
- Replies: 5
- Views: 2167
Re: Nikon ED Plan?
The ED tag is more often seen on their stereo objectives nowadays.
- Fri Aug 06, 2021 7:32 pm
- Forum: Illumination Techniques
- Topic: DIC Question
- Replies: 257
- Views: 3074062
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...
- Fri Aug 06, 2021 6:44 pm
- Forum: Illumination Techniques
- Topic: DIC Question
- Replies: 257
- Views: 3074062
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...
- Fri Aug 06, 2021 6:17 pm
- Forum: Microscopy accessories
- Topic: Leica/Wild M420/M400 on a Nikon toolmaker(?)
- Replies: 6
- Views: 3642
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 ...
- Fri Aug 06, 2021 6:09 pm
- Forum: Illumination Techniques
- Topic: DIC Question
- Replies: 257
- Views: 3074062
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.