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Patent: 24-1060mm Zoom Lens

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Canon Rumors:
Share 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] cr

dilbert:
Interesting that they've gone and included some "exotic" glass elements in this (UD, flourite)

TrumpetPower!:
Eh, maybe I'm misreading this...but I see:


--- Quote ---• 13.08 – - 190.43mm f = 4.30 focal length
--- End quote ---

190.43 / 13.08 = 14.56

Also, assuming that the lens is 24 - ? in 135-format FOV equivalent, then 24 / 13 = 1.8x crop factor, and it'd be 350 equivalent at the long end.

Still, a 15x optical zoom is impressive in what's essentially a 4/3 format, as is 350mm equivalent telephoto.

But maybe I'm looking at the worng part of the list, or my math is off?

b&

neuroanatomist:
Misread. It's 4.3mm - 190.4mm which gives the 44x, and the crop factor is 5.6x, which is a 1/2.3" sensor, the same size found in SX260 HS (and many other P&S cameras).

At the long end it's f/7.1 - that's pretty dark (and likely beyond the aperture where the diffraction penalty starts for a 12-14 MP 1/2.3" sensor).

VirtualRain:
Oh c'mon... It looks like the EF 24-1000 f2.8 L IS USM Zoom we've all been waiting for!  ;D

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