佳能多款EF卡口镜头设计专利曝光

就镜头开发设计来讲，佳能早已竭尽全力，由于商标局早已出現了很多的光学设计专利权。

这种是最新消息的EF接口光学设计。他们将会是Cinema电影镜头，由于他们更遭受关心。

日本国申请专利2019-066585

佳能EF 16mm f / 1.4

焦距16.40mm 16.36mm 16.21mm

F值1.45 1.45 1.45

半场角52.84°52.84°52.84°

图象高度21.64mm 21.64mm 21.64mm

镜头全长98.97mm 98.65mm 97.42mm

BF 38.50mm 38.83mm 40.05mm

佳能EF 20mm f / 1.4

焦距20.50mm 20.45mm 20.26mm

F值1.45 1.45 1.45

半场角46.54°46.54°46.54°

图象高度21.64mm 21.64mm 21.64mm

镜头全长100.04 99.55 97.71

BF 38.32mm 38.81mm 40.64mm

佳能EF 14mm f / 1.8

焦距14.40mm 14.38mm14.29mm

F值1.83 1.83 1.83

半场角56.35°56.35°56.35°

图象高度21.64mm 21.64mm 21.64mm

镜头全长88.57mm 88.32mm 87.42mm

BF 38.79mm 39.04mm 39.94mm

佳能16mm f / 1.8

焦距16.04mm 16.00mm 15.86mm

F值1.83 1.83 1.83

半场角53.45°53.45°53.45°

图象高度21.64mm 21.64mm 21.64mm

镜头全长94.99 94.67 93.46

BF 38.80mm 39.13mm 40.33mm

佳能EF 17mm f / 1.8

焦距17.16mm 17.14mm 17.06mm

F值1.83 1.83 1.83

半场角51.58°51.58°51.58°

图象高度21.64mm 21.64mm 21.64mm

镜头全长90.00mm 89.66mm 88.39mm

BF 40.51mm 40.86mm 42.12mm

佳能18mm f / 1.8

焦距18.81mm 18.75mm 18.52mm

F值1.83 1.83 1.83

半场角48.99°48.99°48.99°

图象高度21.64mm 21.64mm 21.64mm

镜头全长93.37mm 93.37mm 93.37mm

BF 39.52mm 39.52mm 39.52mm

日本国申请专利2019-066586

佳能EF 18mm f / 1.4

焦距18.52mm 18.46mm 18.25mm

F值1.31 1.31 1.31

半场角49.44°49.53°49.85°

图象高度21.64mm 21.64mm 21.64mm

镜头全长106.98mm 106.51mm 104.95mm

BF 38.97mm 39.44mm 41.00mm

佳能EF 20mm f / 1.4

焦距20.50mm 20.45mm 20.26mm

F值1.45 1.45 1.45

半场角46.54°46.54°46.54°

图象高度21.64mm 21.64mm 21.64mm

镜头全长100.04mm 99.55mm 97.71mm

BF 38.32mm 38.81mm 40.65mm

佳能EF 14mm f / 1.8

焦距14.69mm 14.68mm 14.64mm

F值1.85 1.85 1.85

半场角55.82°55.85°55.91°

图象高度21.64mm 21.64mm 21.64mm

镜头全长104.15mm 103.78mm 102.95mm

BF 38.33mm 38.70mm 39.53mm

佳能EF 22mm f / 1.2焦距22.6mm 22.60mm 22.20mm

F值1.24 1.24 1.25

半场角43.63°43.75°44.27°

图象高度21.64mm 21.64mm 21.64mm

镜头全长107.46mm，106.9mm，104.5mm

BF 38.32mm 38.88mm 41.28mm

佳能EF 24mm f / 1.2焦距24.10mm 24.03mm 23.69mm

F值1.24 1.24 1.24

半场角41.92°42.00°42.40°

图象高度21.64mm 21.64mm 21.64mm

镜头全长108.28mm 107.72mm 104.96mm

BF 38.33mm 38.89mm 41.65mm文章正文：Patent: Lots of optical formula lens patents for the EF mount仅作阅读者参照，本站错误內容精确性和信息源承担