Another detailed patent for an RF 70-300mm f/4-5.6 IS lens has appeared, the primary one got here as a part of a patent for an RF 100-400mm f/3.5-5.6L IS USM.

The 70-300mm zoom lens has all the time been part of the price range telephoto zoom lens traces of varied producers, and it is smart that we’ll see one for the RF mount, and sure before later.

Japan Patent Application 2019028212

  • Focal size: 71.53mm 132.28mm 293.70mm
  • F-number: 4.16 5.18 5.83
  • Half-field angle: 16.83° 9.29° 4.21°
  • Image peak: 21.64mm 21.64mm 21.64mm
  • Lens whole size: 179.52mm 216.99mm 250.81mm
  • BF: 48.94mm 22.62mm 18.05mm