Theo cameratimes.org, Canon vừa nộp thêm ba bằng sáng chế ống kính mới cho hệ máy mirroless full frame ngàm RF
Canon RF 800mm f/5.6 IS
- Focal length: 820.00
- F-value: 5.90
- Half angle of view: 1.51
- Image height: 21.64
- Total length: 437.08
- Back focus: 88.12
Canon RF 1000mm f/8 IS
- Focal length: 1000.0
- F-value: 8.00
- Half angle of view: 1.24
- Image height: 21.64
- Total length: 477.48
- Back focus: 115.01
Canon RF 1200mm f/8 IS
- Focal length: 1180.10
- F-value: 8.00
- Half angle of view: 1.05
- Image height: 21.64
- Total length: 550.00
- Back focus: 140.36