screen printing > DIY - From master engineered marvels to cobbled together jury-rigged or Jerry-built junk!
DIY LED exposure unit update....
Prōdigium:
Yep, I thought the same until a few months ago. Its easy to get confused about it, when you consider reaction vs sensitivity.
Its all here... http://www.screenweb.com/content/taking-control-screen-exposure#.V5J31aIl2Q8
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