並前往https://books.google.com.tw/books?id=4_bADwAAQBAJ&pg=PA108&lpg=PA108&dq=DSLR+PTT&source=bl&ots=fVlM1ghY1J&sig=ACfU3U2ME-gx9x8-1pF1KayMfEDBDE94gg&hl=zh-TW&sa=X&ved=2ahUKEwj3ibimzJ6AAxV3mlYBHQtXAOoQ6AF6BQiTARAD