Search found 184 matches

by jfiresto
Mon Jan 18, 2021 12:00 pm
Forum: Miscellaneous
Topic: Mental struggles and microscopy
Replies: 16
Views: 347

Re: Mental struggles and microscopy

As far as I am concerned, 3d-printers are not too good in printing threads, especially small pitch ones. My last project (optic fiber illuminator mod for Nf) had 0,5mm pitch thread, for example - and also some parts for the same project must be made of brass or aluminum to dissipate heat from the l...
by jfiresto
Mon Jan 18, 2021 8:42 am
Forum: Home-made microscope adaptations
Topic: Acheiving parfocal direct projection (APS-C) on the Wild M420
Replies: 5
Views: 5240

Re: Acheiving parfocal direct projection (APS-C) on the Wild M420

Oh no. I really enjoyed your optical stack ups and secretly hoped you would go on building them, both vertically and horizontally, ad infinitum. By comparison, my micro four thirds camera adaptions have been the opposite of impressive, if not downright pathological, with a negative stack height that...
by jfiresto
Sun Jan 17, 2021 9:04 am
Forum: My microscope
Topic: Chinese Wild M3 Clone: It's pretty good! [With comparison to mz6]
Replies: 35
Views: 9157

Re: Chinese Wild M3 Clone: It's pretty good! [With comparison to mz6]

Those spots might come off, but if I were the seller I would have tried to clean the objective: to assess its condition and prevent possible disappointment.
by jfiresto
Sun Jan 17, 2021 8:48 am
Forum: My microscope
Topic: Chinese Wild M3 Clone: It's pretty good! [With comparison to mz6]
Replies: 35
Views: 9157

Re: Chinese Wild M3 Clone: It's pretty good! [With comparison to mz6]

If anyone is curious what Motic's clone of the Wild M7A looks like, there is a fairly complete Motic M-700Z on auction at the moment.
by jfiresto
Tue Jan 05, 2021 9:01 pm
Forum: Camera systems and imaging
Topic: Comparison of two budget cameras - RisingCam (need help in choosing)
Replies: 4
Views: 277

Re: Comparison of two budget cameras - RisingCam (need help in choosing)

For shooting stills, I might suggest something else: a used, mirrorless APS-C or micro four thirds system camera. It gives you a first rate sensor and a lot of camera for the money. I have been happily using various Olympus PEN models and a couple months ago won a very clean E-PL8 body on ebay.de, w...
by jfiresto
Tue Jan 05, 2021 7:16 pm
Forum: Camera systems and imaging
Topic: Comparison of two budget cameras - RisingCam (need help in choosing)
Replies: 4
Views: 277

Re: Comparison of two budget cameras - RisingCam (need help in choosing)

My impression, from the description of your application, is that you will be predominately taking high resolution stills. Is that right?

Will you also be shooting video? If so, what resolution and do you need to see it live on a monitor before or while you are recording?
by jfiresto
Fri Jan 01, 2021 7:29 pm
Forum: My microscope
Topic: Chinese Wild M3 Clone: It's pretty good! [With comparison to mz6]
Replies: 35
Views: 9157

Re: Chinese Wild M3 Clone: It's pretty good! [With comparison to mz6]

... The M3 clone did pretty well, but followup tests have suggested it vignettes in the eyepieces when a photo tube is attached, which is odd. What Field Number eyepieces, and which binocular head and photo tube? My Wild M3 (made ca. 1980) still does not vignette with Zeiss 10X/23 eyepieces, the st...
by jfiresto
Mon Dec 28, 2020 6:51 pm
Forum: Camera systems and imaging
Topic: C-Mount to Nikon Adapter
Replies: 6
Views: 299

Re: C-Mount to Nikon Adapter

The DSLR viewfinder is unhelpful history if you want to go direct projection without intervening optics. By hook or by crook, its mirror has got to go: to greatly shorten the flange focal distance.
by jfiresto
Sat Dec 26, 2020 9:16 pm
Forum: Camera systems and imaging
Topic: Budget Friendly BH2 Video?
Replies: 40
Views: 1356

Re: Budget Friendly BH2 Video?

... I use the direct projection method (without the projection lens or the adapter lens) using a Diagnostic Instruments DBX adapter to the C-mount for my BX-50s. I found a DMC-GH3, which is too old for 4K, gave minor vignetting: https://thumbs2.imagebam.com/4c/10/24/3382691364115798.jpg Its live HD...
by jfiresto
Sat Dec 26, 2020 11:31 am
Forum: Camera systems and imaging
Topic: Budget Friendly BH2 Video?
Replies: 40
Views: 1356

Re: Budget Friendly BH2 Video?

With my setup I don't use additional optics. I have my 4/3 camera attached to the trinoc port with just a tube that has no optics. So you are effectively using the microscope objective as a macro lens ... do I understand correctly ?... Indeed, to the camera, the microscope looks like an exceptional...
by jfiresto
Sun Dec 20, 2020 8:53 pm
Forum: Beginner's corner
Topic: Advice on buying Stereo Microscope
Replies: 28
Views: 1591

Re: Advice on buying Stereo Microscope

You probably want 10x eyepieces to replace the 20xes ... Nikon stereo eyepieces are compatible.... +1 for getting 10X eyepieces. Are the fixed Nikon eyepieces parfocal or do they need to be adjustable? The Olympus and Zeiss eyepieces I have tried expect a shallower intermediate image. It would be c...
by jfiresto
Sun Dec 20, 2020 6:58 pm
Forum: Beginner's corner
Topic: Advice on buying Stereo Microscope
Replies: 28
Views: 1591

Re: Advice on buying Stereo Microscope

... Is it better that I buy 0.4 additional objective or 10x eyepiece? It depends on what you all consider consider "better". There is a tradeoff: 10X eyepieces and no auxiliary objective will produce sharper images; 20X eyepieces and the 0.4X auxiliary objective will give you more depth of field an...
by jfiresto
Mon Dec 14, 2020 1:39 pm
Forum: Beginner's corner
Topic: Advice on buying Stereo Microscope
Replies: 28
Views: 1591

Re: Advice on buying Stereo Microscope

If I see anything, I will let you know.
by jfiresto
Mon Dec 14, 2020 11:47 am
Forum: Beginner's corner
Topic: Advice on buying Stereo Microscope
Replies: 28
Views: 1591

Re: Advice on buying Stereo Microscope

... Maybe this Wild m7a head could be had cheaper if we don't get the accesories. But looking at the head it's different from the first one posted. On the first one there are 3 markings of scale, numbers, 2 on the metal tube and 1 on the rubber. On this ebay m7a 2nd choice link there's only 1 print...
by jfiresto
Mon Dec 14, 2020 10:02 am
Forum: Beginner's corner
Topic: Advice on buying Stereo Microscope
Replies: 28
Views: 1591

Re: Advice on buying Stereo Microscope

... I do see different Wild 10X, 21 eyepiece, there's a, b and c. Do you know the differences between the a, b and c models? You might want the B "high eyepoint" version you can use while wearing glasses. (It is marked with eyeglass symbols.) An advantage of the above M7A is its older model head ha...
by jfiresto
Mon Dec 14, 2020 9:42 am
Forum: Beginner's corner
Topic: Advice on buying Stereo Microscope
Replies: 28
Views: 1591

Re: Advice on buying Stereo Microscope

... Do you see the sample image taken from the m7a scope an issue on the eyepiece, objective or alignment? What part is need to be replaced to fix it? Link to the ebay item also linked if you want to see more pictures of the m7a for sale. It could be an issue in the eyepiece. You would likely want ...
by jfiresto
Mon Dec 14, 2020 8:20 am
Forum: Beginner's corner
Topic: Advice on buying Stereo Microscope
Replies: 28
Views: 1591

Re: Advice on buying Stereo Microscope

... At 599 there's also this old looking but condition seems to be good Olympus SZ. Do you have a link an Olympus specialist (not me) can look at? Just for laughs, I tried taking a picture of the coin through a very similar Wild eyepiece with a bottom-of-the-line, Android 4 smart phone. Here is a 1...
by jfiresto
Mon Dec 14, 2020 6:36 am
Forum: Beginner's corner
Topic: Advice on buying Stereo Microscope
Replies: 28
Views: 1591

Re: Advice on buying Stereo Microscope

...599 euro - Wild M7s, 10x/21 eyepiece not focusable, phototube not included... If that is this one in Freilassing with free shipping, it is actually a Wild M7A on a non-Wild stand with a non-Wild focus mechanism. The M7A variant is also a very nice microscope, but personally, I would wait for som...
by jfiresto
Fri Dec 11, 2020 8:29 pm
Forum: Camera systems and imaging
Topic: B&L Stereozoom Photography ?
Replies: 67
Views: 6872

Re: B&L Stereozoom Photography ?

... Those old vintage ads are great, and provide the best info about release dates. While doing a deep dive I came across a reference to b&l presenting the "monozoom 4" at some conference in Germany back in the 70s. Apparently they were cooking on macroscopes even before Wild. Wild's innovation was...
by jfiresto
Thu Dec 10, 2020 5:36 pm
Forum: Microscopes and optics
Topic: New Stereo - Nikon SMZ800
Replies: 17
Views: 1566

Re: New Stereo - Nikon SMZ800

I think I have not yet found the right subject. I can see a reduction of relative glare near the smallest aperture, but I then also get a big resolution hit from diffraction – and need to clean my eyeglasses and perhaps trim my eyelashes because they also come in focus! I found a dead fly. Oh yeah. ...
by jfiresto
Thu Dec 10, 2020 1:18 pm
Forum: Microscopes and optics
Topic: New Stereo - Nikon SMZ800
Replies: 17
Views: 1566

Re: New Stereo - Nikon SMZ800

The Amscope/Eakins microscopes are good value for the money, but I think at some point you hit the limits of what is possible at that price point. Earlier, I wrote "trying to wean" because I gave enough advice that I am going to feel a bit responsible if things do not work out. I appreciate your rep...
by jfiresto
Thu Dec 10, 2020 10:12 am
Forum: Microscopes and optics
Topic: New Stereo - Nikon SMZ800
Replies: 17
Views: 1566

Re: New Stereo - Nikon SMZ800

That is a very nice microscope you have there. I am trying to wean a couple guys off their Amscope/Eakins stereo microscopes (I think wean is the right word). Both wish for better photo and video imaging. I hope they will be equally pleased. Wild made a phototube, the 180570, with a 50:50 beam split...
by jfiresto
Mon Dec 07, 2020 6:01 pm
Forum: Camera systems and imaging
Topic: Motic SMZ143 with Motic 2x SLR Projection Lens
Replies: 42
Views: 4515

Re: Motic SMZ143 with Motic 2x SLR Projection Lens

For an APS-C or micro four thirds solution, you could start with a 1X c-mount adapter for a one-inch sensor. Alas, Motic apparently expects you to also have an SMZ-161, -168 or -171. :(
by jfiresto
Mon Dec 07, 2020 8:38 am
Forum: Camera systems and imaging
Topic: Motic SMZ143 with Motic 2x SLR Projection Lens
Replies: 42
Views: 4515

Re: Motic SMZ143 with Motic 2x SLR Projection Lens

... That said I just put the camera on the trinoc port without any intervening optics, which gives a tiny bit of vignetting but is more favorable resolution-wise. I quite agree. I think free air, direct projection is the way to go for stereo microscopes, although I find micro-four thirds cameras, r...
by jfiresto
Wed Nov 18, 2020 4:14 pm
Forum: Camera systems and imaging
Topic: Best camera system compatible with MacOS
Replies: 1
Views: 526

Re: Best camera system compatible with MacOS

By any chance does that one have an ISO 38 mm photo port (as John eyes a Leitz ISO 38 to c-mount adapter)?
by jfiresto
Wed Nov 11, 2020 6:58 pm
Forum: Microscopes and optics
Topic: So, will I get the optics clean (Wild drawing tube)?
Replies: 6
Views: 935

Re: So, will I get the optics clean (Wild drawing tube)?

Thank you all for the suggestions and encouragement. A large Giottos Rocket Blaster took off a few specs: the above image shows what would not budge. I can not find any cleaning scratches, so some of the dust may been stuck there for decades. I would say I have a few days to ponder my next move. Mea...
by jfiresto
Wed Nov 11, 2020 12:20 pm
Forum: Microscopes and optics
Topic: So, will I get the optics clean (Wild drawing tube)?
Replies: 6
Views: 935

So, will I get the optics clean (Wild drawing tube)?

I have two surfaces like this in each infinity optical path of an old, Wild M3 drawing tube: https://thumbs2.imagebam.com/f1/60/5d/f73d4e1359327181.jpg The dust is killing the image brightness and contrast but is not doing much to the resolution from what I can tell so far. It appears I will be the ...
by jfiresto
Sun Oct 25, 2020 7:26 pm
Forum: Camera systems and imaging
Topic: Help needed to design adaptor for Mirrorless camera
Replies: 42
Views: 4769

Re: Help needed to design adaptor for Mirrorless camera

Use a remote shutter release to avoid jarring the microscope and camera, or the self-timer to wait for both to settle after you press the shutter button?
by jfiresto
Mon Oct 19, 2020 12:43 pm
Forum: Camera systems and imaging
Topic: Matching camera with C-mount
Replies: 20
Views: 1717

Re: Matching camera with C-mount

You mean to ask where I live? South Florida I asked because I have a couple, extra, used micro four thirds bodies I picked up while researching cameras to mount on a 1" c-mount photoport. You could use one to evaluate the microscope and photoport, and get some idea of what you might then need. I pa...
by jfiresto
Mon Oct 19, 2020 9:14 am
Forum: Camera systems and imaging
Topic: Matching camera with C-mount
Replies: 20
Views: 1717

Re: Matching camera with C-mount

... Seeing as I have the 1x already, I will need to find a camera with a 1" sensor? I guess this limits my choices. And I assume that means I'll be stuck with more expensive cameras in that case (because of the larger sensor size).... I will resume writing up my micro four thirds experiences, right...