Archive for: SX50

Patent: 24-1060mm Zoom Lens

Patent: 24-1060mm Zoom Lens

That’s a 44x Zoom
Canon has published a patent for a zoom lens with an equivalent focal length of 24-1060. That’s a 44x zoom for those that are counting. Could we see this in the next SX PowerShot camera? A good possibility.

Patent Publication No. 2012-98699

  • 2012.5.24 Release Date
  • 2010.10.7 filing date

Example 7

  • Zoom ratio 44.28
  • 13.08 – - 190.43mm f = 4.30 focal length
  • Fno 2.87 – 5.00 – 7.07
  • 16.50 – - 1.17 deg 37.77 a half angle of view.
  • 3.88 – - 3.88mm 3.33 image height
  • 93.62 – - 137.94mm 94.49 lens length
  • BF 1.00mm
  • 13 pieces in 10 groups Lens Construction
  • Two four-sided aspherical
  • 3 UD glass sheet
  • One fluorite
  • Group 4 consists of positive and negative positive positive
  • (For Focusing the fourth lens group) Rear focus

Source: [EG]

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