- 焦距範圍18mm 光圈值F2.8
- 最近拍攝距離
0.25m 最小光圈值F22
- 鏡頭濾光鏡口徑77MM
- 重量380g
Lens construction:
13 elements in 10 groups
Closest focusing:0.25m
Filter attachment size: 77mm

:
Aspherical lens elements |
:
Super ED glass elements |
:
ED glass elements |
|

|
Spatial Frequencies |
S: Sagittal |
M: Meridional |
|
10 lines/mm |
 |
 |
|
30 lines/mm |
 |
 |
|