Northlight-images posted several new patents for Canon Lenses: EF-S 30mm F1.8, EF 50mm F1.8 and 18-105mm f/4-5.6 With Built-in Telconverter.
Canon EF 50mm F1.8 lens patent:
- Focal length 51.60mm
- F number 1.85
- Field angle 22.75
- Image Height 21.64mm
- Lens total length 84.19mm
- BF 39.08mm
Canon EF-S 30mm F1.8 Patent:
- Focal length 30.90mm
- F number 1.85
- Field angle 23.85mm
- Image height 13.66mm
- Lens total length 84.50mm
- BF 35.50mm
Canon 18-105mm f/4-5.6 Patent:
- Focal length 18.40 37.44 104.0
- Aperture 4.00 4.64 5.89
- Half angle of view ω (degree) 36.59 20.04 7.48
- Image height 13.66 13.66 13.66 (APS-C)
- Lens total length 149.30 165.77 191.31
Read More Canon Lens Patent