Search found 2808 matches
- Mon Nov 20, 2023 8:00 pm
- Forum: Illumination Techniques
- Topic: DIC with Leitz Wetzlar Dialux
- Replies: 18
- Views: 7596
Re: DIC with Leitz Wetzlar Dialux
It's nuts, you could assemble an infinity Nikon system with wider fields and better photography potential for less.
- Fri Nov 17, 2023 5:09 pm
- Forum: Camera systems and imaging
- Topic: Increase FOV
- Replies: 23
- Views: 7226
Re: Increase FOV
It'll be interesting to see if you can push it that far. As is if my calculations are right you are pretty close to using the full rated image circle of the better objectives but they can often be pushed a bit further.
- Tue Nov 14, 2023 4:20 pm
- Forum: Microscopes and optics
- Topic: Usin Mitutoyo objective on Olympus BHMJ
- Replies: 7
- Views: 2714
Re: Usin Mitutoyo objective on Olympus BHMJ
Olympus bh2 eyepieces apply corrections that are needed for olympus objectives. Mitutoyo objectives need no further corrections so the nfk eyepiece will degrade the image.
- Tue Nov 14, 2023 1:11 am
- Forum: Beginner's corner
- Topic: Why are my photos blury when I do polarization.
- Replies: 5
- Views: 1161
Re: Why are my photos blury when I do polarization.
It could be. You might have more luck getting them from a known vender like edmund optics. Sometimes they're available used.
- Mon Nov 13, 2023 6:52 am
- Forum: Microscopes and optics
- Topic: Just bought a set of plan objectives
- Replies: 11
- Views: 2492
Re: Just bought a set of plan objectives
Hi, scarodactyle,...you assume a seller is oblivious to the market said seller pitches items for sale in? So said seller , when offering items for sale 'locally, and over seas'...this seller can be silent on 'trap door fees beyond sellers control'? Absolutely. Every country has their own import dut...
- Mon Nov 13, 2023 6:04 am
- Forum: Microscopes and optics
- Topic: Just bought a set of plan objectives
- Replies: 11
- Views: 2492
Re: Just bought a set of plan objectives
The vendor who locked you ( micropunter) into this cascade of added fees...that vendor should have honestly beforehand noted the added fees. This a total abuse of seller platforms. Nah, this is the buyer paying his taxes, not a fee the seller gets. The seller has no control over what duties the des...
- Mon Nov 13, 2023 1:15 am
- Forum: Microscopes and optics
- Topic: Usin Mitutoyo objective on Olympus BHMJ
- Replies: 7
- Views: 2714
Re: Usin Mitutoyo objective on Olympus BHMJ
To be honest I don't remember exactly how I had it set up--I think I swapped the head to a nikon one for direct projection. Nikon photo eyepieces are neutrally corrected. The Pl 2.5x is common but not very good because it adds aberrations of its own to the image. The later Pl 2.5xa is better, as is ...
- Mon Nov 13, 2023 12:19 am
- Forum: Microscopes and optics
- Topic: Usin Mitutoyo objective on Olympus BHMJ
- Replies: 7
- Views: 2714
Re: Usin Mitutoyo objective on Olympus BHMJ
It works fine, but you'll need tp swap out the olympus eyepieces for nikons or (best) generic 10x/22s, and not use the nfk photo eyepiece. I ended up direct projecting onto aps-c but the tube lens in the illuminator made the extreme corners mushy. You could probably use a Nikon photo eyepiece to get...
- Sun Nov 12, 2023 9:37 pm
- Forum: Microscopes and optics
- Topic: Just bought a set of plan objectives
- Replies: 11
- Views: 2492
Re: Just bought a set of plan objectives
In my experience shipping from the US my single biggest source of trouble is UK customs. Very inconsistent, often fail to contact customers about owed duties and just send the package back on the slow boat.
- Sun Nov 12, 2023 9:18 pm
- Forum: For forum members who want to buy and sell equipment
- Topic: WTB: Wild M8 0.4x auxiliary lens
- Replies: 8
- Views: 2430
Re: WTB: Wild M8 0.4x auxiliary lens
They are achromats, not plan, though planarity improves as you zoom in.
The reference focal length for an M8 is 100mm, so a 150mm givez 0.67x magnification, 200mm gives 0.5x etc.
The reference focal length for an M8 is 100mm, so a 150mm givez 0.67x magnification, 200mm gives 0.5x etc.
- Sun Nov 12, 2023 8:40 pm
- Forum: Microscopes and optics
- Topic: Meiji ML2000L for $150 reasonable?
- Replies: 11
- Views: 4897
Re: Meiji ML2000L for $150 reasonable?
Meiji makes good scopes, you should have a lot of fun with it.
- Fri Nov 10, 2023 6:48 pm
- Forum: Beginner's corner
- Topic: Why are my photos blury when I do polarization.
- Replies: 5
- Views: 1161
Re: Why are my photos blury when I do polarization.
Did you peel the protective coating off the film?
- Fri Nov 10, 2023 6:47 pm
- Forum: Microscopy accessories
- Topic: Nikon SMZ660 - G-AL Auxiliary Lens
- Replies: 1
- Views: 1504
Re: Nikon SMZ660 - G-AL Auxiliary Lens
There are very good chinese copies. I got an smz 745t clone along with a 2x aux that is quite good.
- Fri Nov 10, 2023 5:08 am
- Forum: Illumination Techniques
- Topic: Polarization analyzer being used without polarization on the condenser, what would happen?
- Replies: 8
- Views: 2396
Re: Polarization analyzer being used without polarization on the condenser, what would happen?
It might cause issues in some heads if they have e.g. prisms that interact with polarized light. In that case you might want to use a circular polarizer with the wave plate side oriented up.
- Thu Nov 09, 2023 1:33 am
- Forum: Camera systems and imaging
- Topic: Leica/Wild: any special advantage in different tube+optic combinations?
- Replies: 5
- Views: 2336
Re: Leica/Wild: any special advantage in different tube+optic combinations?
It is my understanding that the Wild 404207 eyepiece tube plus 10x/21 photo eyepiece could be substituted by a Leitz Tube TL 160mm plus a Leitz Periplan 10x18 lens ) Mechanically yes, but optically the results would be poor. Wild stereo eyepieces are essentially neutral while Wild/Leitz compound ey...
- Wed Nov 08, 2023 7:03 pm
- Forum: Camera systems and imaging
- Topic: Increase FOV
- Replies: 23
- Views: 7226
Re: Increase FOV
I wouldn't expect the olympus objectives to be so far off spec. Even the generic uplanapo seems like it shouldn't be that far off, I am pretty sure they are meant as a drop in replacement for an Olympus. Did you make sure the tube lens is focused at infinity?
- Tue Nov 07, 2023 12:21 am
- Forum: Camera systems and imaging
- Topic: Magnification of the NFK eyepiece in the Olympus BH-2 system
- Replies: 15
- Views: 5259
Re: Magnification of the NFK eyepiece in the Olympus BH-2 system
From what I understand micro 4/3 pairs well with the 3.3x/mtv3 combo (giving net 1.1ishx magnification).
- Sun Nov 05, 2023 4:42 am
- Forum: Microscopes and optics
- Topic: Is a 2x objective worth having?
- Replies: 11
- Views: 5670
Re: Is a 2x objective having?
Most of them aren't great, but it can be really nice for overviews.
- Sat Nov 04, 2023 2:59 am
- Forum: Beginner's corner
- Topic: 4x objective on bh2 scope
- Replies: 2
- Views: 796
Re: 4x objective on bh2 scope
It's probably a shorter parfocal objective. I have a chinese 4x that looks like a BH2 objective but has a shorter parfocal distance than 45mm.
- Wed Nov 01, 2023 1:08 am
- Forum: Digital processing
- Topic: Why is photo sharpening necessary
- Replies: 7
- Views: 4892
Re: Why is photo sharpening necessary
In extreme macro and micro we are always near to the diffraction limit relatively speaking, not much we can do about that (nothing at all past a point). But we know diffraction blurs things, so by subtracting a blurred version of your image from the image you can partially reverse it. It seems dumb ...
- Tue Oct 31, 2023 11:03 pm
- Forum: Microscopes and optics
- Topic: Any experience with Leica Planapo 1x for their stereos?
- Replies: 4
- Views: 1031
Re: Any experience with Leica Planapo 1x for their stereos?
All of the 65mm thread 1x objectives have the same effective focal length (80mm). The 50mm and 60mm threaded ones (m8, mz6, m3 etc) have a focal length of 100mm. But since they're complex multielement lenses there is a lot of room to vary working distance.
- Mon Oct 30, 2023 9:14 pm
- Forum: Camera systems and imaging
- Topic: Budget camera options for Olympus BX40 - please help
- Replies: 9
- Views: 4378
Re: Budget camera options for Olympus BX40 - please help
How budget is budget? And do you have a 3d printer (or a friend with one)?
- Mon Oct 30, 2023 3:48 pm
- Forum: Microscopes and optics
- Topic: Any experience with Leica Planapo 1x for their stereos?
- Replies: 4
- Views: 1031
Re: Any experience with Leica Planapo 1x for their stereos?
I've tried a few and they've all been good. Even the Wild predecessor on the M10 is very good.
- Sat Oct 28, 2023 10:27 pm
- Forum: Microscopes and optics
- Topic: Why a 50x OIL objective?
- Replies: 4
- Views: 1361
Re: Why a 50x OIL objective?
40x/1.4s and similar are obvious enough, 50x/0.90 presumably gives a wider FoV and higher dof to act as a finder for a 100x/1.40 oil objective without having to remove the oil.
- Fri Oct 27, 2023 4:34 pm
- Forum: Illumination Techniques
- Topic: Question about UM/FMPLF and BD-type objectives in R-DIC/DF
- Replies: 1
- Views: 869
Re: Question about UM/FMPLF and BD-type objectives in R-DIC/DF
You could sort of do darkfield without a bd objective by applying a ring light to the end of the objective, but that is involved and will likely affect working distance at least. Darkfield is nice but DIC can give a similar effect if tuned right.
- Fri Oct 27, 2023 4:36 am
- Forum: Camera systems and imaging
- Topic: Zeiss AxioCam HRc - Worth the bother?
- Replies: 30
- Views: 29256
Re: Zeiss AxioCam HRc - Worth the bother?
Planned obsolescence (which is kind of adding insult to injury on a camera when normal obsolescenceis kind of inevitable).
- Wed Oct 25, 2023 5:34 pm
- Forum: Microscopes and optics
- Topic: Nikon SMZ-10 worthwhile purchase?
- Replies: 4
- Views: 1070
Re: Nikon SMZ-10 worthwhile purchase?
In my opinion,don't purchase Nikon SMZ-10,too old. Age is a concern but when they're in good condition they are really good. They show their age a bit with doming at lower mags and more limited fov (22 or 23mm fn). The trinocular head is a lot nicer than an intermediate attachment in many contexts....
- Sun Oct 22, 2023 10:20 pm
- Forum: Beginner's corner
- Topic: ChatGPT can be your best friend
- Replies: 8
- Views: 2245
Re: ChatGPT can be your best friend
Charlie, no offense but what are you talking about? This isn't about eBay. Chatgpt is just a predictive text engine. On introductory stuff it will tend to get the correct answer because it's repeated a lot in its training dataset but that's it--it doesn't know anything and it will sound just as conv...
- Fri Oct 20, 2023 6:24 am
- Forum: Microscopes and optics
- Topic: leica dm 2000 with DIC objective compatiblity
- Replies: 11
- Views: 5240
Re: leica dm 2000 with DIC objective compatiblity
It's still alive!
Kind of!
I imagine this is mostly to keep the trademark alive.
Kind of!
I imagine this is mostly to keep the trademark alive.
- Wed Oct 18, 2023 6:00 pm
- Forum: Microscopy accessories
- Topic: Wild polarizer part ?
- Replies: 4
- Views: 3542
Re: Wild polarizer part ?
Weird. Looks like their swing-out 2x that would have fit the m5/m7.