Japan Patent Application 2018-180203 contains some new Canon Super Zooms lenses for both EF and RF mounts.
EF mount optical formulas included in this patent :
- EF 35-350mm f/3.5-5.6
- EF 35-400mm f/4.5-5.6
RF mount optical formulas included in this patent :
- RF 25-300mm f/3.5-5.6
- RF 30-350mm f/2.8-4.5
My current Canon EF 28-300mm f/3.5-5.6L IS Super Zoom is one of my favorite lenses but it's heavy and a bit dated. I would like to upgrade to a newer model and prefer it to be a bit longer, perhaps 50-500mm.
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