캐논근황(有)

https://www.canonwatch.com/canon-patent-for-rf-24-70mm-f-2-8-and-rf-...
Canon Patent For RF 24-70mm f/2.8 and RF 28-85mm f/2.0-2.8 Lenses (EOS R System)
음..3 개의캐논의렌즈특허가올라왔네요..RF 24-70mm f/2.8 and RF 28-85mm f/2.0-2.8렌즈와 RF아니면 ef으로보이는 10mm f/2.8렌즈라고하네요..
Here is another Canon patent application (2019-0079269) for two lenses for the Canon RF mount.
From the patent abstract:
Provided is a zoom lens including a plurality of lens units, in which an interval between each pair of adjacent lens units is changed during zooming. The plurality of lens units consist of, in order from an object side to an image side: a first lens unit h에이브이ing a positive refractive power; a second lens unit h에이브이ing a negative refractive power; a third lens unit h에이브이ing a negative refractive power; and a rear lens group including at least one lens unit. An interval between the second lens unit and the third lens unit becomes larger at a telephoto end than at a wide angle end. The third lens unit is moved during focusing. Focal lengths of the second lens unit and the third lens unit, a focal length of the zoom lens at the wide angle end, and a back focus at the wide angle end are appropriately set.
https://www.canonwatch.com/canon-patent-for-10mm-f-2-8-lens-for-full...
Canon Patent For 10mm f/2.8 Lens For Full Frame Sensor (EOS R?)
Hi Lows Note spotted a Canon patent application (2019-040219) for a 10mm f/2.8 lens for full frame cameras. I’m not the expert but given the back focus distance I think it is for a mirrorless system, hence for the Canon EOS R.
Focal length: 10.30 mm
F number: 2.88
Half angle of view: 64.54
Image height: 21.64 mm
Lens length: 124.58 mm
Back focus: 38.00 mm