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Sigma patents a small mirrorless macro lens
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Sigma patents a small mirrorless macro lens
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Sigma patents a small mirrorless macro lens

In a patent application detailing many different Macro lenses, most for DSLR mounts, there is one embodiment for a mirrorless .5x to 1.0x macro lens for a full frame mirrorless camera.

It's data characteristics are;

-0.5x - 1x
Focal Length   50.00  42.94  37.00
F-Number        2.97   3.64   4.38
Full Angle     46.96  37.88  32.66
Image Height   21.63  21.63  21.63
Total Length  109.51 127.94 144.38

Japan Patent Application 2019-144441

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