I have put together a uniform set of response functions for the 2.5-meter (henceforth SDSS), USNO, PTNew (after July 2001) and a set of functions to cover the range of ghastly behavior of the PTOld (before July 2001), and tables of magnitudes and colors for these response functions run against the stars in the Gunn-Stryker spectrophotometric atlas for SDSS, NewPT, and USNO. These are to be found in ftp://astro.princeton.edu/jeg/SDSSPhotometry/ResFuns in appropriatetely named directories. In each is an explanatory readme.txt file, the response functions for 0, 1.0, 1.3, 1.6, 1.9 airmasses, and in the cases mentioned, the G-S photometry files. --jim DSS DSS DSS DSS DSS Digital Sky Survey DSS DSS DSS DSS DSS DSS DSS DSS This is message 709 in the sdss-calib archive, URL DSS http://www.astro.princeton.edu:81/sdss-calib/msg.709.html DSS The index is at http://www.astro.princeton.edu:81/sdss-calib/INDEX.html DSS To join/leave the list, go to DSS http://www.astro.princeton.edu:81/cgi-bin/mailinglists.pl/show_subscription?list=sdss-calib DSS To post a message, mail it to sdss-calib@astro.princeton.edu DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS DSS