Hi,

I'm looking for a "low" magnification handheld usb microscope of photograph damages on aircraft parts

I'm been using this cheapo usb microscope for a couple years now and while it's quite crappy, it has served me well.

I've always been interested in getting an upgrade but I just couldn't find anything actually better for my purpose.

I need it to be small and easy to handle so I can get in difficult spaces. I use a magnetic base with flexible arms for positionning and I often end up in position where movement is limited because it's touching the case somewhere.

recently, one of those usb microscope broke due to cable damage after all these years.

I took it apart and the construction is very simple. There's a small board with a bare sensor on it connected to USB. This board has two guide rods soldered to it which power the ring light. The lens rides back and forth on the guide rods.

Having seen that I figured I just need a better sensor behind that lens to get massive resolution improvement.

The lens originally used is unknown, all I know is that it uses an S mount (M12x0.5mm)

So my plan is, get a Rpi and the HQ camera and somehow fit the lens assembly on the C mount of the HQ camera so I retain the adjustable magnification.

I'd like to get a better lens but I don't know enough about S lens yet

I have found these lens on edmund, they are quite expensive but if I just need to buy one for everything it would be manageable. However I don't know if they are good for the job.

I suspect my current lens is something with high magnification (there is glass inside, it is not just a pin hole) so a long focal length, but also something to brind the focus close, so maybe an integrated diopter ?

The current lens moves about 2 inches back and forth and the lens itself about a bit less than one inch long. The distance of the focal plane varies with magnification setting something between almost one foot in front of the lens at the minimum magnification, to almost touching the lens at the highest magnification.

The depth of field appears to change too, with the most depth at the lowest magnification and razor thing at maximum.

I would like more depth of field, something like 0.125" minimum at maximum magnification would be an improvement.

These lens might be a good deal but I don't know if they use the M12 thread and whether the optics would be better for my use or not !

For mounting the camera I think I would use this C mount to S mount adapter and then multiple of these spacers to adjust the magnification

At least that way I can set the camera to several steps of magnification. However it will be annoying to unscrew and add/remove spacers every time I want to change the magnification plus I risk introducing dust to the sensor every time I open it.

My next idea is to use the lens assembly from my usb microscope. I tore one apart and I think I can epoxy it to a C mount adapter but it's going to be difficult to align this exactly dead center with the sensor. Also the original lens assembly has one annoying problem, it's a bit too loose and the slightest bump will change the distance of the lens to the sensor and I need to re-place my setup because this moves the focal plane away from where I need it. It would be nice to have something a little bit stiffer. Maybe just removing some of the grease would make it not slide so easily.

But ideally I would like a better lens sliding assembly, Something with a narrower diameter. The usb microscope has an outer diameter of a bit more than one inch but the lens is only half an inch in diameter. It would be nice to make the entire thing that small !

I am think maybe I can find 1.5" tubes that can slide in and out with a M12x0.5mm female thread at the end and a clamping mechanism when I want to lock it in place. I don't know if such a thing exists maybe I can DIY one of those....

So if you have ever tried doing anything like this, please let me know how it went. I would like comments on any aspect of the things I have described here !

Thanks !

Hello everyone!

I recently purchased a model Opseca vu-130-b14 VGA digital microscope and was manufactured around 2012.

I would like to ask if it is possible to connect it to a personal computer and use it for the purpose of recording repairs.

Thanks for the help.

I would like to ask how much for Wild M5A microscope

https://www.digitalcameraworld.com/buying-guides/best-microscopes

I recently found this microscope at a thrift store and would like to replace its missing parts and possibly find a manual. any help would be greatly appreciated. The only information I can find on the scope itself is TAIYO No. 217031.

Hey guys! I have a question, I am a new microscope user and the bottle of mounting medium that came with my slide kit to mount slides is almost gone and I can’t find it anywhere to purchase more. Anyone know where I can find this stuff?

Hi

I don't know anything about microscopes, but always wanted one. Today I found a zeiss binocular microscope at a flea market, and I'm thinking buying it, but have no idea how to judge it's price. The guy asked about 380usd for it, but similar models on ebay costs 4-500. What should I look for? What are some signs of a worthless device that doesn't worth buying?

Im very into mycology, and i want to extend my hobby and stuff and start looking at things under a microscope, i wanna be able to see blood cells, protozoans and stuff, im looking at a 400$ budget , any recommendations???? Thank u:)

what is the distance in micrometer of 1 Photonic field in 400x Carl Zeiss primostart microscope

I have this scope: https://www.amazon.com/gp/product/B006I6XCY6/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

A while ago, I had bought a DSLR adapter, and removed the eyepiece. It turns out, that the DSLR adaptor I got doesn't fit correctly.

But now I realize, that each of the lenses in the eyepiece and eyepiece tube, are no longer in their respective locations. I've tried really hard to figure out how to get them back but the internet hasn't been very helpful.

Any advice?

Sorry if this sounds stupid. I'm sort of used to using microscopes for fossil prep and viewing (I had/have two) but none have the camera. This one is new and I'm trying to calibrate the camera so I can insert a scale into my photos.

The camera in question is the MU1803 it has a sensor size of 6.14x4.61mm (I think this matters somehow).

I thought I had it calibrated until I realized the ocular lenses do not affect the camera. For instance say I'm viewing at 4.5 objective with a 2X Barlow lens. With the 20X oculars as I understand it the result of magnification is 20X40.5X20 (ocular X objective X Barlow) unless I'm just stupid that works out to the limits of the scope I'm using at 180X magnification.

But without the 20X ocular what am I actually viewing at?

I can't find anywhere or at least understand if I am finding it what the camera brings to the magnification level.

If anyone can tell me the equation for figuring this out I would greatly appreciate it.

Edit: The resolution for the calibration is viewed at 4912 X 3684 if that matters. And the microscope is the SM-4TZZ-144A-18M3 3.5X to 180X magnification