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Olympus Patent: Macros and Zooms
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Olympus Patent: Macros and Zooms
MirrorlessReports Admin
/ Categories: MFT System, Patents

Olympus Patent: Macros and Zooms

We have discovered an Olympus patent for what appears to be a 90mm Macro F2.8 lens and some others.  First the macro lens;

The imaging optical system is a macro lens, and the macro lens is in order from the object side, the first lens group, the second lens group, the third lens group, the fourth lens group, and the rear side. The imaging optical system according to any one of claims 1 to 32, comprising a lens.

Lens data from embodiment three is;

Infinity Near distance
Close distance f 91.03
FNO. 2.88
2ω 13.68
BF (in air) 38.59 38.59 38.59
LTL ( in air) 151.62 151.62 151.62
Magnification 0.00 -0.50 -1.00

Also included in this patent application (even though I'm not sure how the two are related) are a few telezooms;

Lens Data for a 150 to 400mm F4.0

f 140.63 220.60 360.31
FNO. 4.21 4.21 4.21
2 [omega 8.69 5.55 3.42
BF (in air) 25.79 25.79 25.79
LTL (in air) 255.63 255.63 255.63

Lens Data for a 100-400 F4.5;

f 102.59 201.19 394.31
FNO. 4.60 4.60 4.60
2ω 11.93 6.08 3.11
BF (in air) 29.91 29.91 29.91
LTL (in air) 276.26 276.26 276.26

Lens Data for a 150-400 F4.5

F 152.71 239.55 391.26
FNO. 4.57 4.57 4.57
2Omega 8.08 5.14 3.15
BF (In Air) 29.01 29.01 29.01
LTL (In Air) 318.54 318.54 318.54

Lens Data for a 70-250mm F3.5

f 71.50 120.02 235.01
FNO. 3.60 3.60 3.60
2 [omega 17.29 10.20 5.20
BF (in air) 28.74 28.74 28.74
LTL (in air) 238.08 238.08 238.08

and another 70-250mm F3.5

f 67.01 120.04 250.00
FNO. 3.60 3.60 3.60
2ω 18.37 10.17 4.89
BF (in air) 28.25 28.25 28.25
LTL (in air) 241.59 241.59 241.59
 

Japan Patent Application 2019-184968

 

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