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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