Kowa Prominar 12 mm f/1.8
Kowa Feb 2014
Kowa Micro Four Thirds

Kowa Prominar 12 mm f/1.8

This is a prime lens for Micro Four Thirds, covering 12 mm and a maximum aperture of f/1.8. It weighs 441 g, and was released in 2014. That combination suits landscape, architecture and low-light photography.

It is a prime lens designed for micro four thirds cameras. This ultra-wide prime lens features a f/1.8 maximum aperture, making it ideal for landscape, architecture, astrophotography, low-light. The optical design incorporates 12 elements / 10 groups, ensuring sharp image quality and minimal distortion. Despite its robust professional construction, the lens delivers exceptional optical performance.

f/1.8
Aperture
12mm
Focal
441 g
Weight
Feb 2014
Released
Kowa site

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Good for landscapearchitecturelow-lightastrophotography
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Specification

Manufacturer data
Focal length
12 mm
Maximum aperture
f/1.8
Minimum aperture
f/16
Number of diaphragm blades
9
Optical construction
12 elements / 10 groups
Minimum focusing distance
0.2 m (7.87 inches)
Filter size
72 mm
Lens mount
Micro Four Thirds
Dimensions
90.5 x 76.5 mm
Weight
441 g (15.56 oz)
Lens type
Prime lens
Image stabilization
No
Max Format size
Micro Four Thirds
Aperture ring
Yes
Usage
Landscape, Architecture, Astrophotography, Low-light

Wide open at 2 m, background blur ≈ 0.2% of the frame width

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Video reviews

2 on YouTube
Video thumbnail for Video Review 1
Video thumbnail for Video Review 2
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