Sigma working on a 28-300mm Lens for the Sony Mirrorless system camera, The patent of the lens surfaced a few days ago, We all know that Tamron is aggressively dominating the Sony Fullframe Mirrorless camera lens market with their RXD and VXD Series lenses and with the latest edition of their Tamron 28-200mm lens at a reasonable price point, they have become the first choice for Sony entry-level Fullframe camera users.
Patent Details
Zoom ratio: 7.14
Focal length: 27.99 71.70 199.93 mm
F number: 3.37 4.67 5.60
Angle of view: 78.26 32.06 11.77
Image height: 21.63 21.63 21.63 mm
Lens length: 144.99 161.09 220.98 mm
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source hi-lows-note
