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Atypically in patent embodiments, it’s normally troublesome for super-telephoto zoom lens to take full benefit of the RF mount.
One purpose is that you just can’t use a Tele extender if the rear parts are sitting too far again within the lens. Due to this, at occasions, it’s troublesome to find out if a patent utility is for RF or EF lenses as a result of there’s a lot room within the rear of the lens from the final ingredient to the sensor airplane, that it could possibly be both mount sort.
On this Japan Patent utility, 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 your entire zoom vary. However they may match the extender on for less than the telephoto a part of their zoom, much like the RF 100-500L. With a brief again focus distance, these embodiments are actually RF mount solely.
Birders and sports activities fanatics which have lengthy lusted over the Sigma and Tamron Tremendous telephoto zooms can be lining up the night time earlier than to get their arms 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 whole 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 whole size 271.00 316.00 361.00 BF 31.22 50.94 97.50
