This post may contain affiliate links(s). An affiliate link means I may earn advertising/referral fees if you make a purchase through my link,
without any additional cost to you. It helps to keep this site afloat. Thank you in advance for your support. If you like what we do here, maybe buy me a
coffee.
Canon Patent Application: Canon RF 35-135mm F2.8
This is a curious optical patent from Canon featuring some very uncommon focal length zooms. Reading through the patent application, they simply seem to indicate they wanted to design a high-performance zoom.
A zoom covering 35 to 135mm however would replace a significant number of primes, would some of you like this lens?
Canon RF 35-135mm F2.8
Focus distance 35.39 69.00 132.93
F number 2.85 2.85 2.85
Half angle (°) 31.44 17.41 9.24
Image height 21.64 21.64 21.64
Lens total length 173.35 186.83 203.35
BF 17.95 27.32 34.01
Canon RF 40-150mm F2.8
focus Distance 40.06 69.00 147.97
F number 2.85 2.85 2.85
Half angle (°) 28.37 17.41 8.32
Image height 21.64 21.64 21.64
Lens total length 173.35 191.43 218.30
BF 17.98 26.04 38.94
Canon RF 30-110mm F2.8
Focal length 30.99 69.00 109.92
F number 2.85 2.85 2.85
Half angle ( °) 34.92 17.41 11.13
image height 21.64 21.64 21.64
total lens length 173.09 189.92 203.35
BF 17.95 28.25 33.97
Japan Patent Application 2020-197600
blog comments powered by