光圈系数为指标的调色工具的英文

f-stop

• 光圈:    iris diaphragm; ir ...
• 系数:    coefficient; ratio ...
• 为:    support; stand for
• 指标:    target; quota; nor ...
• 的:    4次方是 The fourth po ...
• 调色:    toning
• 工具:    tool; means; imple ...