If by chance all the recent camera patent news brought to us by our friends at Egami wasn’t enough to satiate your need for the know, here’s another interesting publication from Canon, hinting that what may be in-store for their next super-zoom release.
Filed back in October of 2010, but released publicly last week, publication number “2012-98699″ calls for a 44x zoom lens with an equivalent focal length of 24-1060mm. This lens is stated to contain 13 lens elements arranged in 10 groups, packing two (four-sided) aspherical elements, three UD elements and one fluorite lens element. The filing itself looks to be in response of, or to compete with, the growing super-zoom offerings on the market from Fujifilm and Nikon, the latter of whom currently has a 42x zoom option on the Coolpix P510.
Here’s some more details from the publication with the full and computer translated report from Egami found HERE.
Canon Patent Publication # 2012-98699:
- 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