Lensbaby Circular Fisheye Pentax K

Lensbaby Circular Fisheye Pentax K

Lensbaby Circular Fisheye Pentax K

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Product Overview
  • Full-Circle Image

  • Wide 5.8mm Focal Length

  • Aperture Range of f/3.5-22

  • APS-C & Full Frame Compatibility

  • Close Focusing from 0.25" to Infinity

  • 185˚ Angle of View

  • Focus Distance & DOF Scale

  • Smooth Manual Focusing

  • Creative Flare Effect


The 5.8mm f/3.5 Circular Fisheye Lens for Pentax K from Lensbaby is a manual focus lens with a wide 5.8mm focal length that provides a fully circular image optimized for APS-C-format cameras. It is compatible with full frame image sensors by producing a smaller image within the frame. The lens has an aperture range of f/3.5 to f/22 and captures a 185 degree angle of view. It features a close focusing range starting at 0.25" and going to infinity, all while providing expansive depth of field and image sharpness. This Lensbaby lens doesn't bend, so the fisheye image is always perfectly centered in the frame.

  • Focus distance scale and DOF scale on the lens aids in focusing
  • Polished internal barrel for reflection and creative flare, which fills the border around image circle with colors from bright light sources in the photo