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KOWA 8.5mmF2.8/12mmF1.8/25mmF1.8 上市

Model PROMINAR8.5mm F2.8  PROMINAR12mm F1.8 PROMINAR25mm F1.8
Mount Micro Four Thirds Micro Four Thirds Micro Four Thirds
Focal Length 8.5mm
(35mm Equivalent Focal length: 17mm)
12mm
(35mm Equivalent Focal length: 24mm)
25mm
(35mm Equivalent Focal length: 50mm)
F/T-number F2.8/T3.0 F1.8/T1.9 F1.8/T1.9TV
Distortion 
(TV)
0.12% 0.59% -0.57%
Minimum Aperture F16/T17 F16/T17 F16/T17
Lens Construction 17 Elements in 14 Groups 12 Elements in 10 Groups 8 Elements in 6 Groups
Angle of View
(degree)
93.5°(H)×77.1°(V)×106.0°(D) 74.9°(H)×59.6°(V)×86.8°(D) 40.9°(H)×31.1°(V)×50.2°(D)
Iris 9
(Circular Aperture)

(Circular Aperture)
9
(Circular Aperture)
Minimum Focusing
Distance
0.2m 0.2m 0.25m
Maximum Image
Magnification
0.08x 0.1x 0.15x
Minimum Field Size 239mm×179mm 182mm×136mm 125mm×93mm
Filter Thread φ86mm
(attach to lens hood)
φ72mm φ55mm
Diameter x Length φ71.5×86.8mm
(excluding the lens hood)
φ76.5×90.5mm
(excluding the lens hood)
φ60×94mm
(excluding the lens hood)
Weight 475g
(excluding the lens hood)
441g
(excluding the lens hood)
400g
(excluding the lens hood)

[Note] Some lenses of the micro four thirds system standard may not be mounted to the camera.

2017-03-30