Kowa Prominar 25mm f/1.8 Micro Four Thirds BK

Kowa Prominar 25mm f/1.8 Micro Four Thirds BK

Code: KWPROM25B    Brand: Kowa Optical Products   
  • Standard Focal Length for MFT Format
  • f/1.8 and T1.9 Max Aperture and T-Stop
  • 9-Blade Circular Iris
  • 8 Lens Elements in 8 Groups
  • 9.8" Minimum Focusing Distance
  • Dual Link Iris (Silent / Click-Stop)
  • Floating Mechanism System
  • Aluminum Alloy Body
  • Made in Japan
    APN: 4987646101789
    Supplier Code: PROMINAR 25B
  • The wide angle manual lens “KOWA PROMINAR 25mm F1.8” has a large field of view and bright F-stop. A greatly reduced TV distortion value of just 0.59% and a minimum focusing distance of 2m ensures high quality close-up pictures with a wide angle.


    Dual Link Iris
    A dual Link Iris system makes it possible to choose silent or click aperture adjustment. Aperture settings can be changed in an instant




    Circular Aperture
    The construction of the aperture blades with 9 elements makes it possible that the diaphragm shows a circle at all f-stops, creating a more natural impression.




    Aluminium Alloy Body
    All internal parts are protected by a solid and rigid aluminium housing.The body feels reassuringly well made with good balance and weightiness in the hand and when attached to a camera body.




    Floating Mechanism System
    The floating mechanism system is effective in preventing malfunction and increasing the life of the lens. High optical performance was achieved in all photographic subject distances.

    Made in JAPAN
    From design to inspection, these Kowa lenses benefit from our concept “Made in Japan”. At the forefront of technology, the lenses where designed and developed drawing on over 60 years of Kowa optical heritage.

    Standard Package
    Master Lens, Lens Hood, Objective Cap, Mount Lens Cover, Soft Case.


    Angle of View 40.9° (H) x31.1° (V) x50.2° (D)
    F/T-number F1.8/T1.9
    Filter thread 55mm (attach to lens hood)
    Focal Length 25mm
    Iris 9 (Circular Aperture)
    Lens Construction 8 Elements in 6 Groups
    Max Diameter x Length 60x94mm (excluding the lens hood)
    Max Reprojection Ratio 1 : 6.5
    Min Foucsing Distance 0.25m
    Weight 400g (excluding the lens hood)


  • Kowa PROMINAR MFT 25mm f/1.8 Lens (Black)
  • Lens Hood
  • Objective Cap
  • Mount Lens Cover
  • Soft Case
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