Canon applies for Excessive Magnification Tremendous Telephoto Zoom Patent | Canon Rumors



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Atypically in patent embodiments, it’s often troublesome for super-telephoto zoom lens to take full benefit of the RF mount.

One motive is that you just can’t use a Tele extender if the rear components are sitting too far again within the lens.  Due to this, at occasions, it’s troublesome to find out if a patent software is for RF or EF lenses as a result of there’s a lot room within the rear of the lens from the final component to the sensor aircraft, that it might be both mount kind.

On this Japan Patent software, 2022-053697, Canon is making use of for some larger magnification (shorter MFD) super-telephoto zooms.

These embodiments present a again focus distance of round 30mm, which might make them extra extender non-friendly for the complete zoom vary.  However they might match the extender on for under the telephoto a part of their zoom, much like the RF 100-500L.  With a brief again focus distance, these embodiments are definitely RF mount solely.

Birders and sports activities lovers which have lengthy lusted over the Sigma and Tamron Tremendous telephoto zooms could be lining up the night time earlier than to get their palms on the 70-700mm I believe 😉

Canon RF 60-600mm F4.5-8

Focal size            61.50 164.60 585.00
F quantity                 4.46   5.94   8.16
Half angle of view (°)  19.38   7.49   2.12
Lens complete size      258.90 302.70 346.50
BF                      30.00  49.79  90.50

Canon RF 70-700mm F4.5-F8

Focal size            70.00 185.35 682.00
F quantity                 4.76   6.20   8.16
Half angle of view (°)  17.18   6.66   1.82
Lens complete size      271.00 316.00 361.00
BF                      31.22  50.94  97.50