A new Canon patent application has surfaced, detailing a new 13-21mm f/2.8 RF mount lens for the full-frame Canon EOS R mirrorless system. There’s no word that this lens will actually see a production line, and Canon does already have a 15-35mm f/2.8L IS USM lens for the RF mount, so I think it might be unlikely.
But, a lens that goes a little bit wider and doesn’t quite have the same focal length range would potentially be a little lighter (although the measurements suggest it’s longer) and possibly substantially cheaper than the current $2,299 monster.
While the patent doesn’t appear to specifically say that it’s an RF mount lens, it does describe a full-frame mirrorless lens – which can’t really be anything other than an RF mount lens – that looks a little something like this…
- Zoom ratio: 1.58
- Focal length: 13.40 17.30 21.20 mm
- F number: 2.88 2.88 2.88
- Half angle of view: 58.23 51.35 45.58
- Image height: 21.64 21.64 21.64 mm
- Lens length: 150.15 136.89 130.04 mm
- Back focus: 20.96 25.13 29.31 mm
Canon Rumors also believes that this specific optical formula won’t go into production and appear in the real world, putting forth that it’s probably just a development model for a future ultra-wide angle that we might see later in the year.
You can see the full patent here.
It’s getting difficult to keep up these days, with RF mount, Z mount and L mount all trying to play catch up.
[via Canon Watch]
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