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Thanks for the replies and apologies if I did not give enough info. In my application,a laser beam will be directed at some *small* object and then I have to track the object (by actually tracking the laser beam) using image-processing techniques. In the image processing part, I will detect...

Hi, I have read the Newbie`s guide to buying laser pointers but what I need to know isn't discussed there. So I`m posting this. I need a laser pointer that will have a small, very defined beam at distances of 2-10cm. By defined beam, I mean the beam edges must be quite clear. And it should be...