사양
렌즈 구성
MTF 차트
세로축 : 콘트라스트
가로축 : 이미지 중심부로부터 거리
S: sagittal (방사 방향)
M: Meridional (동심원 방향)
공간 주파수 15라인/mm
공간 주파수 45라인/mm
Specifications
| Type | XF23ｍｍF2.8 R WR | |
|---|---|---|
| Lens configuration | 8 elements in 6 groups (includes 2 aspherical elements) | |
| Focal Length (35 mm in format equivalent) | f=23mm (35mm) |
|
| Angle of view | 63.4° | |
| Max. aperture | F2.8 | |
| Min. aperture aperture | F16 | |
| Aperture control | ||
| Number of blades | 11(rounded diaphragm opening) | |
| Step size | 1/3EV (16 stops) | |
| Minimum focus distance (mesured from focal plane) | 0.2m | |
| Max. magnification | 0.15x | |
| External dimensions : Diameter x Length* (approx.) * distance from camera lens mount flange | Φ61.8mmx23mm | |
| Weight* (approx.) * excluding caps, hoods and Tripod collar foot | 90g | |
| Filter size | Φ39mm | |
| Accessories included | Front lens cap FLCP-39 II Rear lens cap RLCP-001 Lens hood LH-X27 Lens hood cap LHCP-27 Lens protective cloth |
|
