Tamron has two service stations in Japan (Tokyo and Osaka) where you can take your Tamron lens or Bronica camera for repairs. You can also take it to a camera shop that can forward it to Tamron for servicing. They also accept mail-in camera repairs. Call one of the repair centers below.
Tamron Tokyo Repair Service
Address: Showa Kanda Bldg. 4th floor
Uchi-Kanda 2-15-11
Chiyoda-ku, Tokyo, Japan 101-0047
Phone: 03-3251-3856
Fax: 03-3251-3857
〒101-0047東京都千代田区内神田2丁目15番地11号 翔和神田ビル4F
（株）タムロン東京営業所修理品受付係
Hours: 9:00 am to 5:20 pm, closed Sat., Sun., national holidays
Directions: 6-min. walk from JR Kanda Station (East Exit) on the Yamanote Line.
Web site: http://www.tamron.co.jp/support/repair/index02.html
Tamron Osaka Repair Service
Address: Miki Bldg. 6th floor
Minamisenba 2-4-1
Chuo-ku, Osaka, Japan 542-0081
Phone: 06-6271-4281
Fax: 06-6271-4283
〒542-0081大阪市中央区南船場 2-4-1 美貴ビル6F
（株）タムロン大阪営業所修理品受付係
Hours: 9:00 am to 5:20 pm, closed Sat., Sun., national holidays
Directions: 2-min. walk from Nagahoribashi Station (Exit 2B) on the Sakaisuji subway line and Nagahori Tsurumi-ryokuchi Line.
Web site: http://www.tamron.co.jp/support/repair/index02.html
