Tamron has just filed a new patent of Tamron 90mm F2.8 Macro lens. This is a macro lens for Full-Size Mirrorless camera.
- Patent Publication No. 2015-34899
Published 2015.2.19
Filing date 2013.8.9 - Example 1
Image magnification ∞ – -0.5 – -1.0
The focal length f = 87.783-63.669-43.402mm
Fno. 2.880-4.325-5.770
Image height Y = 21.633mm
Lens construction 10 group 13 sheets
LD 5
Inner focus
Floating mechanism
Source: EG
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