New Patents for compact mirrorless lenses have been found from Sigma. The 90mm has already been announced. Applicant: Sigma Co., Ltd. Publication number: P2022061515 Application number: P 2020169465 Publication date: 2022-04-19 Title of invention: Imaging optical system PROBLEM TO BE SOLVED: To provide a compact imaging optical system having a quiet and rapid focus in […]
Example 1 Focal length: 18.528-49.967 F value: 3.605-5.308 Half angle of view: 39.012-15.652 Image height: 14.250 Overall length: 97.833-119.002 Back focus: 37.320 Example 2 Focal length: 25.100-114.132 F value: 4.105-4.140 Half angle of view: 42.102-10.446 Image height: 21.633 Overall length: 167.363-218.148 Back focus: 39.824 Example 3 Focal length: 28.000-118.794 F value: 4.113 Half angle of […]
Sigma 28-70mm f/2.0 full frame Focal length: 28.90-67.75 F value: 2.07 Angle of view: 76.73-33.8 Image height: 21.63 Overall length: 147.85-11.89 Sigma 14-30mm f/4.0 full frame Focal length: 14.42-29.10 F value: 4.00 Angle of view: 117.62-71.79 Image height: 21.63 Overall length: 96.04-74.39 Sigma 20mm f/1.4 APS-C Focal length: 20.00 F value: 1.46 Angle of view: […]
Overview [Publication Number] Japanese Patent Laid-Open No. 2021-196572 (Publication Number)P2021-196572A) ・ Similar patent: Japanese Patent Laid-Open No. 2021-196573 (P2021-196573A) ・ Similar patent: Japanese Patent Application Laid-Open No. 2021-196574 (P2021-196574A) [Publication date] December 27, 2021 [Title of the invention] Zoom lens and image pickup device [Application date] June 18, 2020 [Applicant] [Identification number] 000133227 [Name or […]
The Tamron 90mm f/2.8 was first spotted here, but asobinet is reporting a more updated filing that was applied for April 16th, 2020, and published October 28, 2021. It’s increasingly looking like this lens is real and coming with a compact design that will suit mirrorless cameras well. Focal length: 88.500 F value: 2.9200 Half […]
Asobinet found a Sigma 150mm F2.8 DG DN Macro patent that is interesting for photographers that like telephoto macro. Focus distance 146.25 83.49 55.51 F number 2.91 4.37 5.82 Full frame angle 2ω 16.67 11.36 6.91 Image height Y 21.63 21.63 21.63 Lens overall length 171.21 171.21 171.21 Overview [Publication Number] Japanese Patent Application Laid-Open No. […]
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