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Canon News has uncovered a patent for an RF 8mm f/4 fisheye optical formula. By the looks of the patent translation, this is likely for full-frame image sensors.
This fisheye design has a full 180-degree angle of view.
Canon RF 8mm F4.0 Fisheye
- Focal length: 8.05mm
- F-number: 4.00
- Angle of view: 90.07°
- Image height: 11.40mm
- Lens length: 70.43mm
- BF: 16.93mm
