It’s only a matter of time before we see an ultra-wide angle zoom lens for the Canon RF mount (as well as the RF-S mount). It looks like Canon may be trying to go wider than the EF 11-24mm f/4L USM if the bevy of patents are leading to a consumer available product.
This latest patent shows optical formulas for an RF 8-15mm f/4L USM and an RF 16-24mm f/4L USM. The RF 16-24mm f/4L USM doesn’t make much sense with the existence of the RF 14-35mm f/4L IS USM. The RF 8-15mm f/4L USM lines up with the EF 8-15mm f/4L USM zoom fisheye.
We have previously reported that a zoom fisheye would be coming to the RF mount in the next year or so, so this may be part of that development.
Japan Patent JP,2023-104025 deals with decreasing the size of a full-frame RF ultra-wide zoom lens.
To obtain high optical performance in the entire zooming range in a small-sized zoom lens having a wide angle of view.
Canon RF 8-15mm f/4L USM
- Focal length: 8.56mm – 14.42mm
- F-number: 4.12
- Half angle of view: 52.47° – 56.32°
- Height: 11.15mm – 21.64mm
- Length Overall: 119.70mm
- Back Focus: 22.47mm – 34.96mm
Canon RF 16-24mm f/4L USM
- Focal length: 16.00mm – 24.00mm
- F-number: 4.12
- Half angle of view: 53.52° – 42.03°
- Height: 21.64mm
- Length Overall: 118.86mm
- Back Focus: 23.30mm – 37.54mm
Some of our articles may include affiliate links. If you purchase through these links, we may earn an affiliate commission at no extra cost to you.
Go to discussion…