Oct. 8–10. All invited to this annual gathering of enthusiasts of the original Argus camera company, which operated in Ann Arbor 1936–1969. Events include presentations, exhibitions (see Galleries), a field trip to the Henry Ford Museum, meals, photo contests, and auctions. Thurs. 3–8 p.m., Fri. 10 a.m.–7 p.m., Sat. 9 a.m.–8:30 p.m., 525 W. William. $50 (members, $40) suggested donation. Preregistration required at argusmuseum.org/fall-conference. (313) 499–0551.