可以先学习光圈，快门，ＩＳＯ的三角关系，了解暴光和景深的概念

来源: 吴聚于 2012-09-10 15:11:18 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.