Tamron 85mm F2.8 Di III and 125mm F1.8 Di III Patent Applications Found

By Louis Ferreira | Published: November 5, 2020
  • [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 1Example 2Example 3
Focal length82.451124.905125.920
F value2.8842.8841.854
Half angle of view14.6559.7659.646
Image height21.6332163321633
full length76.000116.301144.837
BF
Example 4Example 5
Focal length128.082143.416
F value3.6052.884
Half angle of view9.4748.481
Image height21.63321.633
full length108.872136.846
BF

via asobinet

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