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.

Every Fri.–Sun., Sept. 19–Nov. 1. A large corn maze with 3.5 miles of trails and 3 exits to allow for routes of various lengths. Also, a U-Pick pumpkin patch, hayrides, petting zoo, pedal cars, straw maze, and yard games. On Sept. 27, Family Fun Day (11 a.m.–3 p.m.) features ice cream, balloon art, kids activities, and live music from the Saline Fiddlers. 11 a.m.–9 p.m. (Sat.), 11 a.m.–7 p.m. (Sun.), & 5–9 p.m. (Fri.), 6175 Daly, Dexter. $16 (ages 5–12, $13; age 4 & under, free with adult admission). blastcornmaze.com.

Every Fri.–Sun. A large corn maze with 3.5 miles of trails and 3 exits. Also, a u-pick pumpkin patch, hayrides, petting zoo, pedal cars, straw maze, and yard games. The corn maze is illuminated and guests get a free glow stick on Glow Maze Nights (Oct. 9, 16, & 23, 5–9 p.m.). On All You Can Carry Pumpkin Day (Oct. 25, 11 a.m.–7 p.m.), for $10 you can purchase all the pumpkins you can successfully stack and carry down the lane. On Pumpkin Smash Day (Oct. 30, 5–9 p.m.), each guest receives a free pumpkin to smash, which is then composted or fed to the farm’s animals. Costumes encouraged for the Halloween Spooktacular (Oct. 31, 11 a.m.–3 p.m.). 5–9 p.m (Fri.), 11 a.m.–9 p.m. (Sat.), 11 a.m.–7 p.m. (Sun.). 6175 Daly, Dexter. $16 (ages 5–12, $13; age 4 & under, free with adult admission). blastcornmaze.com.

Oct. 7–10. One of the world’s 50 top jazz/avant music festivals, according to DownBeat, this annual event includes multiple shows over 4 days. Tonight: U-M jazz professor and versatile composer-saxophonist Andrew Bishop (6 p.m.), often a sideman, gives a solo concert. The William Hooker Quartet (7 p.m.), known for wide-open textural improvisation, is led by renowned New York–based drummer Hooker. Free jazz ensemble New Origins Trio (8 p.m.), led by prominent French clarinetist Christophe Rocher with Americans bassist Joe Fonda and drummer Harvey Sorgen, balances structured compositions with wild improvisation. Bass clarinet–driven Chicago free jazz ensemble the Stein/Smith/Shead Trio (9 p.m.) includes bass clarinetist Jason Stein, bassist Damon Smith, and drummer Adam Shead. The quartet Fay Victor’s Herbie Nichols SUNG (10 p.m.) is led by inventive vocalist and lyricist Victor, known for her beautifully strange originality. 6, 7, 8, 9, & 10 p.m., Kerrytown Concert House, 415 N. Fourth Ave. Tickets $20 per show (students, age 18 & under, $10) in advance at kerrytownconcerthouse.com & (if available) at the door. $70 day passes (Saturday, $100) and 240–390 full festival passes in advance only online & by phone. (734) 769–2999.

Every Fri. All invited to play the current official campaign of the popular Dungeons & Dragons tabletop role-playing game, using 5th-edition rules. Kids under 13 must have adult accompaniment. 6–10 p.m., 2459 W. Stadium. $10. Space limited, preregistration strongly recommended. (734) 929–5877, sylvanfactory.com.

Oct. 2, 9, 16, 23, & 30. Five-game euchre tournament. Sign up with a partner or get paired with one by the organizers. Prizes. Food & beverages available for purchase. Proceeds benefit Haitian children via Haitian Christian Outreach. 6:30–9 p.m., HOMES Campus, 112 Jackson Plz. $15 (HOMES members, $10). [email protected], tinyurl.com/a2euchrechange. 

Every Wed., Fri., & Sat. All invited to play both casual and tournament forms of the collectible card game MTG. Wed. & Sat. (5 p.m.): “Commander.” A drop-in session of the most popular form of the game. Free. Fri. (6:30 p.m.): “Booster Draft.” Players take turns opening booster packs to create a 40 card deck. $25. Various times & prices, 2459 W. Stadium. (734) 929–5877, sylvanfactory.com.