PLEASE HELP! I have just joined this site so I am unprepared as to how this works. I have a variety of lenses that I have collected through the years ranging in size from 1/4" up to to two plano-convex face to face lenses from some type of military application that are maybe 10" in diameter. I have others (plano-concave, biconcave , biconvex, and probably some positive and negative meniscus as well. I would like to find some projects that are workable for a mechanically oriented DIY'er. I want to know if any of my "stuff" is applicable for Camera Obscura, Camera Lucida, Telescope, Solar Furnace, or any other optical wonders. I hate to have these optical gems just hanging around in a box. Please let me know if there are any great project sites. I also have 3 US Precision Lens - Delta 25 lenses. What fun can be done with these?
Thanks for your help in advance.
OPTICOPTER (Curt)