猜測應該是前端鏡組鬆動,這顆鏡頭有些人會遇到這問題..拆開將前端鏡組的三顆螺絲鎖緊即可,找了兩篇自行修理教學可以參考看看http://blog.yam.com/jachen0901/article/27961902http://keepmoving-logan.blogspot.com/2011/05/tamron-a16.html