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Which USB "microscope" for measurement / poor mans shadowgraph?

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PekkaNF:
Going to visit east coast of USA in few weeks and thinking of buying myself some goodies.

Much of the tools I can find on the net-shops are same on the both sides of the bond, but there are few things that I could lug home from US.

One is stereo microscope, something like 20x, but I know next to nothing on this matter and would hate to have one broken on luggage handling.

I have seen some pictures taken on USB-microscope that have some measuring software. Prices wary wildly and I don't know at which price range crap turns to useful.

Wants:
* Measurements (metric units), length, r, and angles would be nice. Working software is very high on my list.
* Good mounting, something like camera thread or something, not wobbly clips
* Magnification about 20x?
* How many pixcels?
* Good enough optics that will show image without that much distortion, that it is impossible to compare shapes of common threading/cutting tools.
* Do I need polarizing filter and will that deside the model or am I better of buying camera filters and mount them front of the camera?

Nice-to-have
* Is is possible to have optics that will allow front lense some distance from the object without breaking the bank? I don't want to stick the lense right into cutting tool, but 20X there should be no need?
* Lighting and mount I can build, but if I get away with build in light, even better

I'm looking for very basic unit that will do few things well, if the optics and software is good enough, then I'll work out stages, mounts, lights and micrometers etc,

Any thoughts?

My plan "B" is to get some good loupes with reticles. Any suggestions on them?

Thanks,
Pekka

Brass_Machine:
Can't help you on the microscope... but where on the east coast are you going?

Eric

PekkaNF:
New York city couple of days and then Troy, NY.

http://madmodder.net/index.php/topic,7705.msg82580.html#msg82580

Would have love to see the American Precision Museum, but it seem to be closed. Anything (yesterday) scientific or industrial would be nice to see.

Pekka

Raggle:
I bought one similar to this

http://www.ebay.com/itm/500X-USB-Digital-Microscope-2-0MP-video-camera-/260848910033

and it came with Coolingtech measurement software.

I've not used it much as it runs in Windows only and I rarely leave Ubuntu linux. But it is pretty good other than the supplied stand. There are shots of the measuring software in that ad, but they suggest a download from

http://www.joinnew.com/joinnew/NewsView.asp?id=10&.html

I haven't checked that one. Your risk :)

Ray

ajawamnet:
I have a few of the Avens - both the 10-200x and the 500x:
http://www.digikey.com/product-detail/en/26700-200/243-1065-ND/1953868

they have a few different ones:
http://www.digikey.com/product-search/en/optical-inspection-equipment/microscopes/4063899?k=aven

Even wireless

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