Sony new patent surfaced over the web – Zoom Lens for Full-Frame Mirrorless camera, See the details below
Patent Publication No. 2013-37105
2013.2.21 Release Date
2011.8.5 filing date
Example 1
Focal length f = 1.00 – 3.62mm (57.1-207.2mm equivalent APS-C, 87.0-314.8mm equivalent full-size)
Fno 4.64 -. 6.49
Half angle of view ω = 13.95 – 3.92 °
BF 0.320 – 0.929mm (18.3-53.1mm equivalent APS-C, 27.8-80.8mm equivalent full-size)
13 pictures in 9 groups lens configuration
Two four-sided aspherical
3 ED glass sheets
More Full Frame Mirrorless Patent from Sony – Just few days ago japanese patent hunting website – Egami spotted the first Sony patent 35mm f/1.8 E-mount lens for the future Full Frame system.
Patent Details
Focal length f = 35.81
Fno. = 1.85
Half angle of view ω = 30.78 °
Image height Y = 21.6mm
Mod β = -0.25
Eight lens elements in 7 groups configuration
Two three-sided aspherical
1 ED glass sheet
