Kodak publication P-150: Lunar Eclipse photography - exposure tables http://www.kodak.com/global/en/consumer/products/techInfo/p150/p150c.shtml Same as pdf http://www.kodak.com/global/en/consumer/products/techInfo/p150/P_150.pdf A Covington Exposure Calculator implemented as online Javascript calculator http://www.rphotoz.com/astrophoto/expcalcs.html Covington's original desktop calculator application http://www.covingtoninnovations.com/astro/astrosoft.html - Kurt ____________________________________________________________________________________ Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs