New patent discloses the Tamron 75mm F1.4 Di III lens design
Tamron patented the 75mm F1.4 Di III lens design:
- Focal length: 75.830
- F-value: 1.458
- Half angle of view: 16.269
- Image height: 21.630
- Overall length: 111.780
- Back focus: 22.252
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via Asobinet.