长焦景深的摸索 [复制链接]

0剑雪0:向老师学习顶张助兴
[图片](2013-04-15 07:34)嬀/color]

和鸟网的精品一样

cjl0927:可爱的小鸟。[表情] (2013-04-15 07:46)嬀/color]

谢谢cjl0927

tigerchu:欣赏!(2013-04-15 11:27)嬀/color]

谢谢tigerchu欣赏

1122:梦幻景深!(2013-04-15 12:01)嬀/color]

谢谢1122

遍地红:好帖！向于老师学习！[表情](2013-04-15 15:34)嬀/color]

谢谢遍地红，你拍的不错。

遍地红:[图片]
..(2013-04-15 15:36)嬀/color]

好拍摄

李少侠:虚得美丽，学习[表情] [表情] (2013-04-15 18:08)嬀/color]

谢谢李少侠，互相学习。

winnie999:很美！！！(2013-04-15 19:37)嬀/color]

谢谢winnie999欣赏

于广中:谢谢cy8278。离鸟的距离大概十米，镜头焦距600加1.4增距，全画幅。 (2013-04-16 00:19) 

Thank you for your information , I have  a question :  that 1.4 is the number of the aperture ? sorry I ask too many question , I am a new guy in taking pictures , Have a lot to learn , Very appreciate your information to help me to improve me skill , Thanks again , Have a nice day ,

靓！支持！

cy8278:Thank you for your information , I have愀 question :琀栀愀琀 1.4 is the number of the aperture ? sorry I ask too many question , I am a new guy in taking pictures , Have a lot to learn , Very appreciate your information to help me to improv ..(2013-04-16 03:58)嬀/color]

增距镜是长焦镜头加长焦距的常用附件，1.4增距是在原有镜头焦距的基础上乘1.4，比如我的600mm的镜头，加了1.4增距后便变成840mm焦距，当然光圈也因此缩小了1.4，相当于我原来的4光圈变成了5..6，画质也会因此而降低；但是，因为距离太远（和鸟的距离），很多时候不得不加增距，特别是全画幅的相机。

嘉琳:靓！支持！(2013-04-16 07:46)嬀/color]

谢谢嘉琳