You'll need:1. Biometar MC 80mm f/2,8 lens(I got mine for $60).2. M42 macro rings($10).3. M42/nikon/canon converter($10).4. A 2.25 inches long piece of bicycle inner tube.5. Hose clamp.6. 20 minutes.This is really easy and quick project to make. Once you get all the parts it almost takes no time to ...
By: krzysztof.szymanski
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from Instructables: exploring - technology - robots http://ift.tt/1UrNTI6
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