Tamron 85mm F2.8 Di III and 125mm F1.8 Di III Patent Applications Found
- [Public number] Japanese Patent Application Laid-Open No. 2020-181000 (P2020-181000A)
- [Publication date] November 5, 2020
- [Title of the Invention] A photographing lens and a photographing device
- [Application date] April 23, 2019
- [Applicant]
[Identification number] 000133227
[Name or name] Tamron Co., Ltd.
- PROBLEM TO BE SOLVED: To provide a photographic lens and a photographic apparatus which are compact and have excellent optical performance.
| Example 1 |
Example 2 |
Example 3 |
| Focal length |
82.451 |
124.905 |
125.920 |
| F value |
2.884 |
2.884 |
1.854 |
| Half angle of view |
14.655 |
9.765 |
9.646 |
| Image height |
21.633 |
21633 |
21633 |
| full length |
76.000 |
116.301 |
144.837 |
| BF |
|
|
|
|
Example 4 |
Example 5 |
|
| Focal length |
128.082 |
143.416 |
|
| F value |
3.605 |
2.884 |
|
| Half angle of view |
9.474 |
8.481 |
|
| Image height |
21.633 |
21.633 |
|
| full length |
108.872 |
136.846 |
|
| BF |
|
|
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