c*y
2 楼
看镜头了,IF的不用
n*n
3 楼
IF是前面镜片完全不动 还是指不转?
是不是不转就行 像P+套头?
是不是不转就行 像P+套头?
c*y
4 楼
from wiki:
"An internal focus lens (sometimes known as IF) is a photographic lens
design in which focus is shifted by moving the inner lens group or groups
only, without any rotation or shifting of the front lens element. This makes
it easy to use, for example, a screwed-in polarizing filter or a petal
shaped lens hood."
【在 n*********n 的大作中提到】
: IF是前面镜片完全不动 还是指不转?
: 是不是不转就行 像P+套头?
"An internal focus lens (sometimes known as IF) is a photographic lens
design in which focus is shifted by moving the inner lens group or groups
only, without any rotation or shifting of the front lens element. This makes
it easy to use, for example, a screwed-in polarizing filter or a petal
shaped lens hood."
【在 n*********n 的大作中提到】
: IF是前面镜片完全不动 还是指不转?
: 是不是不转就行 像P+套头?
n*n
5 楼
还是不太明白
那Canon 24-105/4L算IF吗?
那Canon 24-105/4L算IF吗?
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