A new patent surfaced over the web that shows a compact zoom lens with 100X optical zoom, the focal range of 3.6mm to 340mm, aapprox 18mm-1768mm lens for a 1/2.3″ sensor.
patent details
Description and self-interpretation of the patent literature
- Patent Publication No. 2013-242430,2013-242431
- Publication date 2013.12.5
- Filing date 2012.5.21
- Example 2
- Zoom ratio 48.37
- Focal length f = 4.30-13.30-208.00mm
- Fno. 2.87-5.00-7.07
- Half angle ω = 37.77-16.25-1.07 °
- 94.75-94.56-138.99mm overall length of the lens
- BF 10.40-19.43-10.43mm
- 13 pieces of 10-group lens configuration
- Two four-sided aspherical
- Example 5
- Zoom ratio 94.44
- Focal length f = 3.60-14.51-340.00mm
- Fno. 3.50-5.00-9.00
- Half angle ω = 42.12-14.95-0.65 °
- 95.91-97.40-165.41mm overall length of the lens
- BF 10.48-21.86-2.28mm
- 13 pieces of 10-group lens configuration
- Three 5-sided aspherical
Canon will sure use a 100X optical zoom in its upcoming megazoom cameras, but it always hard to implement theoretically correct things in practical life… The major area where problem will arise is image stabilization, noise control and retractable lens barrel with ultra-compact design.
But we always have high hope from Canon and we wish to see a 100X camera from Canon very soon.
egami.com
