12/3,1 Fish-Eye Video DSLR Pentax K black

Item number: 20604
  • 4K qualified
  • ideal for Pentax K
  • optimized for videography
  • extremely high lens speed of 1:3.1
  • near focussing limit of 0.20 m
  • high-quality optical design
    • all lenses multi-coated
    • two aspherical lenses
    • three lenses made of ED-glass
    • Nano Coating System for brilliant rendition
  • infinitely variable aperture, ideal for uniform exposure during shooting
  • light-moving focussing, ideal for use of a Follow Focus
  • Image circle designed for full frame.
  • built in lensshade
  • manual focussing
  • manual aperture setting
Item description

Exceptional focal length with high lens speed
The 12 mm/3,1 is a full area covering Fisheye lens for Full Frame imaging.
With a diagonal full frame picture angle of approx. 180° it offers a giant field of vision. Perfectly suitable for overviews, inside spaces, confined spatial conditions, but also for reporting from such locations. The lens puts the motif into the right light. With its lens speed T of 3.1 this lens has a big initial light intensity. Due to the short focal length and the small image scale, it is characterized by a tremendous focal depth.

For videography
For videography the aperture can be infinitely adjusted from 3.1 to 22 and focussing is soft and light moving. This enables soft focus tracking, particularly in videography. Both the aperture ring and the focus ring are provided with a ring gear and have thus been optimized for use with focussing facilities (Follow Focus Systems) and ease their use when filming. Distance and aperture scales are arranged on the side for better readability.

High quality optics
The lens is internally focussing with a near focussing limit of approx. 20 centimetres. The optical design with 12 lenses in 8 groups is highly extravagant and promises best imaging quality. The multi-coating of all lenses used in this lens is standard with walimex pro. It enables a higher light gain, better colour rendering and higher contrast. A glass area additionally coated with NCS Nano Coating System promises an even more brilliant reproduction.

Technical specification

General information

Product Color Black
Length 80mm
Weight 554g


Bayonet K
Manufacturer Pentax
Picture Angle 35mm 180°
Lens connection Pentax K
Developed for Full Frame
Suitable for Sensor APS-C, Full Frame, MFT
Crop Factor 1,5
Focal Distance 12mm
Lens Speed 1:3,1
Internal Focusing Yes
Lenses / Groups 12 / 10
Minimum Focusing Distance 0,2m
Lens Diameter 86mm
Filter Diameter 67mm
Type Wide Angle
Category Fisheye
Camera Model Pentax K-3 II, Pentax K-S2, Pentax K-S1, Pentax K-3, Pentax K-50, Pentax K-500, Pentax K-5 lis, Pentax K-5 II, Pentax K-30, Pentax K-01, Pentax K-5, Pentax K-r, Pentax K-x, Pentax K-7, Pentax K-m, Pentax K200D, Pentax K20D, Pentax K100D Super, Pentax ist DL2, Pentax K10D, Pentax K100D, Pentax K-1, Pentax K-70
Field of Application Lens Architecture, Countryside, Art
Usage Photo
Field of Application Art, Architecture, Countryside


Girth 690mm
Height of Packaging 131mm
Length of Packaging 170mm
Packaging Material Carton
Packaging with Euro Hole No
Weight incl. Packaging 720g
Width of Packaging 129mm
Included in delivery
  • 1 x walimex pro 12/3.1 Fisheye VDSLR for Pentax K incl. lens cap and lend pouch
Examples of Use