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DiscoverCircuits.com -- Hobby Corner "Hobby Circuits for
your Hobby Projects" Last Updated on:
06/19/2009 02:52:48 PM
Cheap Close-up Camera Lens
designed by David Johnson, P.E.
I often use my
digital camera to take photos of some electronic projects. At times, I need to get in
close to capture some details. But, without some additional optics, my camera just could
not maintain focus, as I got closer to an object. Being a cheap person, I didn’t want to
spend money on an expensive close-up lens. Instead, I found a 1.75” glass lens with a
focal length of about 2.5 inches. I glued the lens to a cardboard tube. This allowed the
assembly to slide over the extended cylindrical lens of my camera, holding the glass
lens over the camera lens. Thicker glass lenses could be used for higher magnification
but this one allowed me to zoom in pretty close. The PC board below is a 1GB memory
stick IC with 0.025” pin spacing
