Canon Patent for RF 70-300mm f/3.5-5.6 & RF 100-500mm f/5.6-6.4 Lenses

Canon filed two new patents for RF 70-300mm f/3.5-5.6 & RF 100-500mm f/5.6-6.4 lenses in USA and Japan. Both lens patents are RF mount ultra-wide zoom lenses.

The first one in the patent application describes a RF 70-300mm f/3.5-5.6lens which will be good companion for the RF 28-70mm f/2L USM lens. The second one is RF 100-500mm f/5.6-6.4 lens, similar to RF 100-500mm f/4.5-7.1 L IS USM Lens.

We hope this patent that gets into production sooner or later. Check out the details below.

RF 70-300mm f/3.5-5.6

• Zoom ration: 3.97
• Focal length: 72.86 133.96 289.00 mm
• F number: 3.75 4.66 5.83
• Half angle ov view: 16.54 9.17 4.28
• Image height: 21.64 21.64 21.64 mm
• Lens length: 162.01 202.44 237.12 mm
• Back focus: 13.80 31.02 57.79 mm

RF 100-500mm f/5.6-6.4

• Zoom ration: 4.75
• Focal length: 102.00 220.00 485.00 mm
• F number: 5.69 6.14 6.43
• Half angle of view: 11.98 5.62 2.55
• Image height: 21.64 21.64 21.64 mm
• Lens length: 213.16 266.00 293.16 mm
• Bacl focus: 11.09 26.50 42.04 mm

via Hi Lows Note