The pictures were taken by an amateur photographer 这些照片是一位业余摄影师拍的。
2.
I am an amateur photographer 我是个业余摄影师。
3.
The more than 100 photos on the chinese photograpthic art exhibition are selected works by both professional and amateur photographers in various localities of china "中国摄影艺术展"展出的100余幅摄影作品是由中国各地的专业和业余摄影师拍摄的,代表了中国当代的摄影艺术水平。