並前往https://books.google.com.tw/books?id=gWT8AAAAQBAJ&pg=PA5&lpg=PA5&dq=DSLR+PTT&source=bl&ots=gI4_O54uuR&sig=ACfU3U17JWVYLPq7PY3IsM-BC6lIszio4w&hl=zh-TW&sa=X&ved=2ahUKEwj3ibimzJ6AAxV3mlYBHQtXAOoQ6AF6BQiUARAD