Ken, 

Just catching up on this discussion.?We have college interns checking for tin whiskers on commercial electronics.? I just bought one of these "digital microscopes" on E-bay for $40.? For that kind of money how can you go wrong?? Well ........

1. The little unit is easy to hook to your computer and the software is pretty good for image capture.? There is a good white LED illuminator around the camera lens.? I think the application is more for detecting counterfeit money, as the little camera does magnify the maximum 230X and take decent pictures, but it works best on flat surfaces.? 

2. Nothing works like a microscope stage to smoothly move objects in the X-Y directions so you can scan.? There is no Z-axis movement except to bring the object closer or further away, The camera goes in and out of focus to drive you crazy. 

3. We mounted our $40 scope to our metallurgical microscope and use it that way.? It makes the cheapest digital add-on I have seen to an existing optical microscope!!!? And you can't beat the price or ease of set-up.? 

Contact me off line and I will send a picture of how we use it here at Purdue Techology Center. 

Denny Fritz


-----Original Message-----
From: Leif Erik Laerum <[log in to unmask]>
To: [log in to unmask]
Sent: Fri, Jul 24, 2009 11:31 am
Subject: Re: [TN] PCB Inspection


Kenneth,?
?
I have two of these. I never use them for anything. The image quality is unsuitable for detecting PCB blemishes. We use Mantis Scopes with 10X magnification. We catch everything with that. Different price class of course.?
?
Leif Erik Laerum?
?
?
Kenneth Wood wrote:?
> As I've said in the past...this list server really needs to support HTML?
> format...?
> Let's try this again.?
>?
> https://webvia.techni-tool.com/VIA/viaImagePageIndex.jsp?row=17&pgName=viaLi?
> stProducts.jsp&searchText=IN6&modifier=IN6&reqTitle=TITLE_VIAUSERDOCLIST&new?
> Window=Y?
>?
>?
> If this still doesn't work, please go to www.techni-tool.com and look up?
> part number 876IN414?
>?
> Thanks?
> Ken?
>?
>?
>?
> -----Original Message-----?
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Kenneth Wood?
> Sent: Friday, July 24, 2009 10:09 AM?
> To: [log in to unmask]
> Subject: [TN] PCB Inspection?
>?
> Hi all..?
>?
> I need to inspect a small lot of bare boards and was wondering if anyone had?
> experience with this unit:?
>?
> >?
> https://webvia.techni-tool.com/VIA/viaImagePageIndex.jsp?row=17?
> <https://webvia.techni-tool.com/VIA/viaImagePageIndex.jsp?row=17&pgName=viaL?
> istProducts.jsp&searchText=IN6&modifier=IN6&reqTitle=TITLE_VIAUSERDOCLIST&ne?
> wWindow=Y>?
> &pgName=viaListProducts.jsp&searchText=IN6&modifier=IN6&reqTitle=TITLE_VIAUS?
> ERDOCLIST&newWindow=Y?
>?
> >?
> Or.is there something better I can use to perform a visual inspection of?
> bare boards??
> Thanks?
>?
> Ken?
>?
> >?
>?
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