Samyang 森養 20mm F1.8 ED AS UMC
簡介:
- F1.8 明亮光圈
- 7 片光圈簾數
- 94.8° 超廣角鏡頭
- 非球面鏡片 (ASP)
- 低色散光學鏡片 (ED)
- 森養光學獨有技術 - 防反射鍍膜 (UMC)
探索新角度
森養20毫米F1.8 ED AS UMC鏡頭是針對全幅數碼單反相機傳感器尺寸相機的標準畫角鏡頭。研究無反相機光的流動，進一步優化其光學設計，從而提供更出色圖像。
光圈值採用更亮的F1.8，保障更快的快門速度，在有限照明環境下也能拍下最佳圖像。擁有柔和夢幻模糊效果，適合突出主要被攝對象並捕獲其最美瞬間。尤其， 20毫米畫角是定位在超廣角16毫米和接近標準廣角24毫米之間的獨特廣角，不僅可以用於拍攝裝飾設計和演唱會等室內情景，還具有拍攝街景和風景等多種用途。
在森養光學累積40餘年的光學技術基礎上按照12片設計組13,13片鏡頭中有2片非球面鏡頭和3片低色散鏡頭。同樣採用超級多層鍍膜技術，抑制不必要的光線分散，從畫面中央到周邊實現出色畫質和對比度。
規格:
| Model Name | 20mm F1.8 ED AS UMC | |||||||||
| Aperture Range | F1.8 ~ 22 | |||||||||
| Optical Construction | 13 ELEMENTS IN 12 GROUPS (2ASPHERICAL) | |||||||||
| Minimum Focusing Distance | 0.2 m(0.66ft) | |||||||||
| Filter Size | 77.0mm | |||||||||
| Maximum Diameter | 83.0mm | |||||||||
| Mount | Canon EF | Nikon F | Pentax K | Sony A | Canon M | Fujifilm X | Samsung NX | Sony E | MFT | |
| Angle Of View | 35mm | 94.8˚ | 94.8˚ | 94.8˚ | 94.8˚ | - | - | - | 94.8˚ | - |
| APS-C | 66.9˚ | 70.3˚ | 70.3˚ | 70.3˚ | 66.9˚ | 70.3˚ | 70.3˚ | 70.3˚ | - | |
| FOUR-THIRDS | - | - | - | - | - | - | - | - | 56.1˚ | |
| Length | 88.4mm | 85.9mm | 86.9mm | 87.9mm | 114.3mm | 114.7mm | 106.9mm | 114.4mm | 113.2mm | |
| Weight | 497g | 488g | 493g | 498g | 525g | 565g | 515g | 525g | 520g | |
| Model Name | 20mm F1.8 ED AS UMC | ||||
| Aperture Range | F1.8 ~ 22 | ||||
| Optical | 13 ELEMENTS IN 12 GROUPS (2ASPHERICAL) | ||||
| Construction | |||||
| Minimum | 0.2 m(0.66ft) | ||||
| Focusing Distance | |||||
| Filter Size | 77.0mm | ||||
| Maximum Diameter | 83.0mm | ||||
| Mount | Canon EF | Nikon F | Sony E | ||
| Angle Of View | 35mm | 94.8˚ | 94.8˚ | 94.8˚ | |
| APS-C | 66.9˚ | 70.3˚ | 70.3˚ | ||
| Length | 88.4mm | 85.9mm | 114.4mm | ||
| Weight | 497g | 488g | 525g | ||
